Servizi di posta elettronica

Size: px
Start display at page:

Download "Servizi di posta elettronica"

Transcription

1 Servizi di posta elettronica Serate a tema Amministrazione sistemi Linux 26 aprile 2010 Marco Moser Linuxtrent

2 Contesto

3 Termini Mail User Agent legge la posta via file, pop3, imap (mutt, thunderbird, webmail) Mail Transfer Agent riceve, spedisce, inoltra via smtp (sendmail, postfix, qmail) Mail Delivery Agent consegna la posta (procmail, deliver, lda)

4 Protocollo SMTP Simple Mail Transport Protocol (1982) Porta 25 Legge (e scrive) gli header dell' ascii a 7bit Non certifica il mittente dei messaggi ESMTP (2008) 8bit, uft8, starttls, autenticazione,...

5 Esempio SMTP telnet 25 S: 220 ESMTP Postfix C: HELO mydomain.com S: 250 Hello mydomain.com, pleased to meet you C: MAIL FROM: S: 250 Sender ok C: RCPT TO: S: 250 Recipient Ok C: DATA S: 354 End data with "." on a line by itself C: Subject: messaggio di prova C: From: C: To: C: C: Ciao, C: questa è una prova. C:. S: 250 Ok: queued as C: QUIT S: 221 Bye * wikipedia

6 Protocollo POP Post Office Protocol (ver. 3) Porta 110 (plain o starttls) oppure 995 (ssl) Autentica l'utente Elenca, mostra e cancella la posta

7 Esempio POP telnet 110 S:+OK C:USER pippo S:+OK C:PASS pluto S:+OK C:LIST S:+OK C:RETR 1 S:+OK Return-Path: Delivered-To: Date: Sat, 22 Oct :24: From: Mario Rossi Subject: xxxx Content-Type: text/plain; charset=iso testo messaggio. C:DELE 1 S:+OK C:QUIT S:+OK * wikipedia

8 Protocollo IMAP Internet Message Access Protocol (ver ) Porta 143 (plain o starttls) oppure 993 (ssl) Autentica utente instaura una sessione, consente l'accesso concorrente all'account Elenca, mostra, cancella e archivia la posta organizzazione in cartelle, flags (letta, inoltrata,..., di lavoro, urgente), primitive per la ricerca Scaricamento parziale dell' (mime) Shared folders

9 Esempio IMAP telnet imap.joker.net 143 * OK [CAPABILITY IMAP4REV1 LOGIN-REFERRALS STARTTLS AUTH=LOGIN] joker.net IMAP4rev at Sun, 13 Jul :09: (CEST) a100 LOGIN homer onslls a100 OK [CAPABILITY IMAP4REV1 IDLE NAMESPACE MAILBOX-REFERRALS SCAN SORT THREAD=REFERENCES THREAD=ORDEREDSUBJECT MULTIAPPEND] User homer authenticated a101 select inbox * 2 EXISTS a102 fetch 1:2 (flags body[header.fields (subject)])... a103 FETCH 1 (body[text]) * 1 FETCH (BODY[TEXT] {105} Messaggio di prova, Blah blah a104 STORE 1 +FLAGS (\Deleted) * 1 FETCH (FLAGS (\Seen \Deleted NonJunk)) a104 OK STORE completed a106 LOGOUT a106 OK LOGOUT completed * openskill.info

10 Esempio Return-Path: Delivered-To: Received: from smtp-out05a.alice.it (smtp-out05a.alice.it [ ]) by mail.oltrefersina.it (Postfix) with ESMTP id 4D319CF8005 for Sat, 24 Apr :37: (CEST) Received: from FBCMMO04.fbc.local ([ ]) by smtp-out05a.alice.it with Microsoft SMTPSVC( ); Sat, 24 Apr :37: Received: from FBCMCL01B02.fbc.local ([ ]) by FBCMMO04.fbc.local with Microsoft SMTPSVC( ); Sat, 24 Apr :36: Received: from [ ] ([ ]) by FBCMCL01B02.fbc.local with Microsoft SMTPSVC( ); Sat, 24 Apr :36: Message-ID: Date: Sat, 24 Apr :36: From: "Polisportiva Oltrefersina.it" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; it; rv: ) Gecko/ Thunderbird/3.0.4 MIME-Version: 1.0 To: Polisportiva Oltrefersina Subject: prova Content-Type: text/plain; charset=iso ; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 24 Apr :36: (UTC) FILETIME=[AAAF2AD0:01CAE391] di prova

11 MIME Multipurpose Internet Mail Extensions Supporta il trasporto di mail non-ascii e multipart Header non ascii Subject: =?ISO ?Q?perch=E8_poich=E8?= Content-Transfer-Encoding: 8bit... Content-Type: multipart/mixed; boundary="----_=_nextpart_001_01c9e9b3.91ed543c" _=_NextPart_002_01C9E9B3.91ED543C Content-Type: text/plain; charset="iso " Content-Transfer-Encoding: quoted-printable

12 MTA Sendmail (Allman 1980) storico ma ostico da configurare Qmail (Berstein 1995) nasce molto sicuro (taglia 1 bug = 1.000$), da compilare, oggi la licenza e' public domain, e' un progetto fermo Postfix (IBM, Venema 1997) sicuro, flessibile e diffuso Altri: Exim, Apache James,...

13 Postfix minimale Server minimale per utenti locali (/etc/passwd) + invio al mondo apt-get install postfix mailx vi /etc/postfix/main.cf myhostname=mail.oltrefersina.it mydestination = $myhostname, localhost. $mydomain, localhost mynetworks = /8

14 Postfix minimale vi /etc/aliases root: /usr/bin/newaliases /etc/init.d/postfix restart Test mailx -s OK marcomoser prova

15 Postfix utility mailq coda messaggi postsuper -r AEF2ACF8004 rimuove dalla coda postqueue -f svuota coda tail -f /var/log/mail.info file di log /var/spool/mail/ caselle mbox

16 Postfix Alice Mail server con relay su alice business apt-get install libsasl2-modules vi /etc/postfix/main.cf myhostname=server1 mydestination = $myhostname, localhost. $mydomain, localhost mynetworks = / /24 relayhost = [mail.191.biz]

17 Postfix Alice main.cf smtp_sasl_auth_enable = yes smtp_sasl_type = cyrus smtpd_use_tls = no smtp_sasl_security_options = noanonymous # evita ntlm smtp_sasl_mechanism_filter = LOGIN smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd # logging debug_peer_list = mail.191.biz vi /etc/postfix/sasl_passwd mail.191.biz postmap /etc/postfix/sasl/sasl_passwd

18 Poor programmer - antispam Postgrey greylisting (rifiuto temporaneo) Real-time Blackhole List elenco di host sconsigliati vi main.cf smtpd_recipient_restrictions = permit_mynetworks, reject_unauth_destination, reject_rbl_client sbl.spamhaus.org, reject_rbl_client bl.spamcop.net, check_policy_service inet: :60000

19 Antispam Apache SpamAssasin bayesian: filtra la posta in ingresso valutandone il contenuto [perl] DSPAM autoapprendimento, filtri bayesian [c] + gui Amavis spamassasin + clamav (antivirus) ASSP smtp proxy server (bayesian, rbl, urirbl, greylisting, ) + gui ThunderBayes++ Thunderbird plugin

20 Utenti virtuali # Crea user vmail groupadd -g 5000 vmail useradd -m -u g s /bin/false vmail vi main.cf # elenco dei domini per cui accettare la virtual_mailbox_domains = /etc/postfix/vhosts # homedir delle caselle virtual virtual_mailbox_base = /home/vmail virtual_uid_maps = static:5000 virtual_gid_maps = static:5000 # elenca puntualmente tutte le caselle postali e directory relativa virtual_mailbox_maps = hash:/etc/postfix/vmailbox # elenca tutti gli alias virtual_alias_maps = hash:/etc/postfix/valias

21 Utenti virtuali vi /etc/postfix/vhosts oltrefersina.it vi /etc/postfix/vmailbox vi /etc/postfix/valias oltrefersina.it/info/ oltrefersina.it/moser/ oltrefersina.it/calcio/ postmap /etc/postfix/vmailbox postmap /etc/postfix/valias Postfix reload

22 Dovecot T.Sirainen, Finlandia (2002) Ubuntu , beta 2.0 server IMAP e POP3 con supporto per i protocolli sicuri IMAPS e POPS, TLS e SSL caselle di posta in entrambi i formati: mbox e Maildir. Autenticazione degli utenti passwd, pam, ldap, sql Implementa un lda con mail quota e sieve (vacation, redirect) Parla con postfix sasl (scenario server) Sicurezza taglia 1 bug = Euro

23 LDA apt-get install dovecot-imapd dovecot-pop3d vi /etc/dovecot/dovecot.conf protocols = imap imaps pop3 pop3s # outlook non ha il tls disable_plaintext_auth = no mail_location = maildir:/home/vmail/%d/%n # abilita il local delivery agent + sieve script protocol lda { # Address to use when sending rejection mails. postmaster_address = # Enabling Sieve plugin for server-side mail filtering mail_plugins = cmusieve }

24 Auth + Sieve auth default { # il methodo login e' usato da outlook (sasl) mechanisms = plain login #passdb passwd-file { # quello solo per deny = yes #passdb pam { passdb passwd-file { args = /home/dovecot/passwd-%d } userdb passwd-file { args = /home/dovecot/passwd-%d } # user needs access to only user and password databases user = root ## dovecot-lda specific settings ## socket listen { master { path = /var/run/dovecot/auth-master mode = 0600 user = vmail # User running Dovecot LDA #group = vmail # Or alternatively mode LDA user in this group } } plugin { sieve = /home/vmail/%d/%n/sieve }

25 Postfix - Dovecot vi /etc/postfix/main.cf dovecot_destination_recipient_limit = 1 virtual_transport = dovecot vi /etc/postfix/master.cf # service type private unpriv chroot wakeup maxproc command + args # dovecot lda dovecot unix - n n - - pipe flags=drhu user=vmail:vmail argv=/usr/lib/dovecot/deliver -f ${sender} -d ${recipient}

26 File utenti + sieverc Vi /etc/dovecot/passwd # user:password:uid:gid:(gecos):home:(shell):extra_fields vi /home/vmail/oltrefersina.it/moser/sieverc require "fileinto"; # mailing linuxtrent if header :contains "to" { fileinto "Mailing.Linuxtrent"; stop; } if header :contains "to" { fileinto "Mailing.Soci Linuxtrent"; stop; }

27 Qmail + vpopmail + qmailadmin Vpopmail (Inter7 GPL) virtual domains, virtual users file system, sql, ldap Gui per l'amministratore e per gli utenti (forward, vacation, autoresponder) Nota dolente... si parte dai sorgenti: qmail, vpopmail, dovecot/courier-imap

28 Qmailadmin (web)

29 Mozilla Thunderbird

30 NOCC

31 RoundCube

32 Groupware Overlook (openit) rubrica, calendario (condivisi) Egroupware Zimbra Horde SugarCRM

33 Conclusioni Fonti: Licenza della presentazione: Autore: Marco Moser Licenza: Creative Commons Attribuzione - Condividi allo stesso modo 2.5 Italia License

Configure a Mail Server

Configure a Mail Server SECTION 3 Configure a Mail Server In this section of the workbook, you learn how to do the following: Send Mail to root on 3-3 In this exercise, you send an email to user root using the mail command and

More information

Postfix. by Rod Roark http://www.sunsetsystems.com/

Postfix. by Rod Roark http://www.sunsetsystems.com/ Postfix by Rod Roark http://www.sunsetsystems.com/ Terminology MTA MDA MUA SMTP IMAP POP3 UCE Mail Transfer Agent Receives mail from or sends mail to other computers Talks with other MTAs and certain other

More information

Setup Local Mail Server Using Postfix, Dovecot And Squirrelmail On CentOS 6.5/6.4

Setup Local Mail Server Using Postfix, Dovecot And Squirrelmail On CentOS 6.5/6.4 Setup Local Mail Server Using Postfix, Dovecot And Squirrelmail On CentOS 6.5/6.4 For this tutorial, I use CentOS 6.5 32 bit minimal installation, with SELinux disabled. My test box details are given below.

More information

Email. MIME is the protocol that was devised to allow non-ascii encoded content in an email and attached files to an email.

Email. MIME is the protocol that was devised to allow non-ascii encoded content in an email and attached files to an email. Email Basics: Email protocols were developed even before there was an Internet, at a time when no one was anticipating widespread use of digital graphics or even rich text format (fonts, colors, etc.),

More information

Proxy IMAP/POP/SMTP securisé avec Perdition, Postfix et SASL

Proxy IMAP/POP/SMTP securisé avec Perdition, Postfix et SASL Proxy IMAP/POP/SMTP securisé avec Perdition, Postfix et SASL Installation de perdition : apt-get install perdition openssl Généré 1 clé privé et 1 certificat auto-signé : cd /etc/perdition openssl genrsa

More information

Postfix Configuration and Administration

Postfix Configuration and Administration c 2007 Patrick Koetter & Ralf Hildebrandt state-of-mind LISA 07 Dallas, November 2007 System architecture System metaphor SMTP UUCP QMQP sendmail Postfix SMTP LMTP local pipe virtual transport aliases

More information

Mail system components. Electronic Mail MRA MUA MSA MAA. David Byers

Mail system components. Electronic Mail MRA MUA MSA MAA. David Byers Electronic Mail PRINCIPLES DNS ARCHITECTURES SPAM Mail system components () () David Byers MRA davby@ida.liu.se IDA/ADIT/IISLAB Mail User Agent Reads and writes e-mail Writes e-mail to using (usually)

More information

PostfixAdmin 3.0. Mailserver administration made easy. Christian Boltz

PostfixAdmin 3.0. Mailserver administration made easy. Christian Boltz PostfixAdmin 3.0 Mailserver administration made easy Christian Boltz cboltz@opensuse.org listen What is PostfixAdmin? Web interface to manage your mailserver: domains mailboxes aliases (forwarding) alias

More information

debops.postfix documentation

debops.postfix documentation debops.postfix documentation Release master DebOps Project February 18, 2015 Contents 1 Introduction 1 1.1 Features.................................................. 1 2 Installation 3 2.1 Role dependencies............................................

More information

Implementing a SPAM and virus scanning mail server using RedHat Linux 8.0

Implementing a SPAM and virus scanning mail server using RedHat Linux 8.0 Implementing a SPAM and virus scanning mail server using RedHat Linux 8.0 Ralf Spenneberg April 25, 2003 ralf@spenneberg.net Copyright c 2002 by Ralf Spenneberg. This document was typeset using L A TEX

More information

Linux Administrator (Advance)

Linux Administrator (Advance) Linux Administrator (Advance) Mr.Kriangsak Namkot Trainer & Director Jodoi IT&Service Co.,Ltd. jodoi@jodoi.com jodoi1819@hotmail.com http://www.jodoi.com Linux Admin II Day 2 9:00 น. -12.00 น. - Mail Server

More information

Implementing a SPAM and virus scanning mail server using RedHat Linux 8.0

Implementing a SPAM and virus scanning mail server using RedHat Linux 8.0 Implementing a SPAM and virus scanning mail server using RedHat Linux 8.0 Ralf Spenneberg February 20, 2003 ralf@spenneberg.net Copyright c 2002 by Ralf Spenneberg. This document was typeset using L A

More information

Exim4U. Email Server Solution For Unix And Linux Systems

Exim4U. Email Server Solution For Unix And Linux Systems Email Server Solution For Unix And Linux Systems General Overview, Feature Comparison and Screen Shots Exim4U Email Server Solution For Unix And Linux Systems Version 2.x.x October 12, 2012 Copyright 2009

More information

Table of Contents. Electronic mail. History of email (2) History of email (1) Email history. Basic concepts. Aka e-mail (or email according to Knuth)

Table of Contents. Electronic mail. History of email (2) History of email (1) Email history. Basic concepts. Aka e-mail (or email according to Knuth) Table of Contents Electronic mail Aka e-mail (or email according to Knuth) Karst Koymans / Jeroen van der Ham Informatics Institute University of Amsterdam Tuesday, September 25, 2011 Email history Basic

More information

Internet Technology 2/13/2013

Internet Technology 2/13/2013 Internet Technology 03r. Application layer protocols: email Email: Paul Krzyzanowski Rutgers University Spring 2013 1 2 Simple Mail Transfer Protocol () Defined in RFC 2821 (April 2001) Original definition

More information

Communication Systems Network Applications - Electronic Mail

Communication Systems Network Applications - Electronic Mail Scope Communication Systems Network s - Electronic Mail Prof. Dr.-Ing. Lars Wolf TU Braunschweig Institut für Betriebssysteme und Rechnerverbund Mühlenpfordtstraße 23, 38106 Braunschweig, Germany Email:

More information

Ficha técnica de curso Código: IFCAD241

Ficha técnica de curso Código: IFCAD241 Curso de: Linux E-mail. Set up, maintain, and secure a small office e- mail server Objetivos: Aprender a instalar, mantener y securizar un correo en un sistema linux. Destinado a: Todo administrador de

More information

AXIGEN Mail Server. Quick Installation and Configuration Guide. Product version: 6.1 Document version: 1.0

AXIGEN Mail Server. Quick Installation and Configuration Guide. Product version: 6.1 Document version: 1.0 AXIGEN Mail Server Quick Installation and Configuration Guide Product version: 6.1 Document version: 1.0 Last Updated on: May 28, 2008 Chapter 1: Introduction... 3 Welcome... 3 Purpose of this document...

More information

Mail Server Administration

Mail Server Administration Clemson University CPSC 424: Systems Administration and Security Section 001 Mail Server Administration Authors: Joshua Groppe William Collins Instructor: James M.Martin, Ph.D April 25, 2014 1 Introduction

More information

CipherMail Gateway Quick Setup Guide

CipherMail Gateway Quick Setup Guide CIPHERMAIL EMAIL ENCRYPTION CipherMail Gateway Quick Setup Guide October 10, 2015, Rev: 9537 Copyright 2015, ciphermail.com. CONTENTS CONTENTS Contents 1 Introduction 4 2 Typical setups 4 2.1 Direct delivery............................

More information

FTP and email. Computer Networks. FTP: the file transfer protocol

FTP and email. Computer Networks. FTP: the file transfer protocol Computer Networks and email Based on Computer Networking, 4 th Edition by Kurose and Ross : the file transfer protocol transfer file to/from remote host client/ model client: side that initiates transfer

More information

Filtering Mail with Milter. David F. Skoll Roaring Penguin Software Inc.

Filtering Mail with Milter. David F. Skoll Roaring Penguin Software Inc. Filtering Mail with Milter David F. Skoll Roaring Penguin Software Inc. Why filter mail? Overview Different filtering approaches Delivery agent (e.g. Procmail) Central filtering (Milter) Milter Architecture

More information

Domain Name System (DNS)

Domain Name System (DNS) Application Layer Domain Name System Domain Name System (DNS) Problem Want to go to www.google.com, but don t know the IP address Solution DNS queries Name Servers to get correct IP address Essentially

More information

CS43: Computer Networks Email. Kevin Webb Swarthmore College September 24, 2015

CS43: Computer Networks Email. Kevin Webb Swarthmore College September 24, 2015 CS43: Computer Networks Email Kevin Webb Swarthmore College September 24, 2015 Three major components: mail (MUA) mail transfer (MTA) simple mail transfer protocol: SMTP User Agent a.k.a. mail reader composing,

More information

SuSE email Solutions Based on

SuSE email Solutions Based on SuSE email Solutions Based on SuSE Linux Enterprise Server 8 SuSE Linux AG Whitepaper SuSE email Solutions Based on SuSE Linux Enterprise Server 8 1 Overview... 3 2 Value Propositions... 3 3 System Structure

More information

Electronic mail. Aka email (Knuth) dr. C. P. J. Koymans. Informatics Institute Universiteit van Amsterdam. November 20, 2007

Electronic mail. Aka email (Knuth) dr. C. P. J. Koymans. Informatics Institute Universiteit van Amsterdam. November 20, 2007 Electronic mail Aka email (Knuth) dr. C. P. J. Koymans Informatics Institute Universiteit van Amsterdam November 20, 2007 dr. C. P. J. Koymans (UvA) Electronic mail November 20, 2007 1 / 31 History of

More information

CPSC 360 - Network Programming. Email, FTP, and NAT. http://www.cs.clemson.edu/~mweigle/courses/cpsc360

CPSC 360 - Network Programming. Email, FTP, and NAT. http://www.cs.clemson.edu/~mweigle/courses/cpsc360 CPSC 360 - Network Programming E, FTP, and NAT Michele Weigle Department of Computer Science Clemson University mweigle@cs.clemson.edu April 18, 2005 http://www.cs.clemson.edu/~mweigle/courses/cpsc360

More information

1 Introduction: Network Applications

1 Introduction: Network Applications 1 Introduction: Network Applications Some Network Apps E-mail Web Instant messaging Remote login P2P file sharing Multi-user network games Streaming stored video clips Internet telephone Real-time video

More information

Internet Security [1] VU 184.216. Engin Kirda engin@infosys.tuwien.ac.at

Internet Security [1] VU 184.216. Engin Kirda engin@infosys.tuwien.ac.at Internet Security [1] VU 184.216 Engin Kirda engin@infosys.tuwien.ac.at Christopher Kruegel chris@auto.tuwien.ac.at Administration Challenge 2 deadline is tomorrow 177 correct solutions Challenge 4 will

More information

Mail agents. Introduction to Internet Mail. Message format (2) Authenticating senders

Mail agents. Introduction to Internet Mail. Message format (2) Authenticating senders Mail agents Introduction to Internet Mail Philip Hazel University of Cambridge MUA = Mail User Agent Interacts directly with the end user Pine, MH, Elm, mutt, mail, Eudora, Marcel, Mailstrom, Mulberry,

More information

2- Electronic Mail (SMTP), File Transfer (FTP), & Remote Logging (TELNET)

2- Electronic Mail (SMTP), File Transfer (FTP), & Remote Logging (TELNET) 2- Electronic Mail (SMTP), File Transfer (FTP), & Remote Logging (TELNET) There are three popular applications for exchanging information. Electronic mail exchanges information between people and file

More information

Talk Internet User Guides Controlgate Administrative User Guide

Talk Internet User Guides Controlgate Administrative User Guide Talk Internet User Guides Controlgate Administrative User Guide Contents Contents (This Page) 2 Accessing the Controlgate Interface 3 Adding a new domain 4 Setup Website Hosting 5 Setup FTP Users 6 Setup

More information

HOWTO Virtual Mail Hosting on CentOS 6.x Postfix MySQL Dovecot PostfixAdmin Amavisd-new Spamassassin Clamav

HOWTO Virtual Mail Hosting on CentOS 6.x Postfix MySQL Dovecot PostfixAdmin Amavisd-new Spamassassin Clamav HOWTO Virtual Mail Hosting on CentOS 6.x Postfix MySQL Dovecot PostfixAdmin Amavisd-new Spamassassin Clamav 2013-09-22 URL: http://www.campworld.net/thewiki/pmwiki.php/linuxserverscentos/cent6virtmailserver

More information

19531 - Telematics. 13th Tutorial - Application Layer Protocols

19531 - Telematics. 13th Tutorial - Application Layer Protocols 19531 - Telematics 13th Tutorial - Application Layer Protocols Bastian Blywis Department of Mathematics and Computer Science Institute of Computer Science 03. February, 2011 Institute of Computer Science

More information

Internet Technologies Internet Protocols and Services

Internet Technologies Internet Protocols and Services QAFQAZ UNIVERSITY Computer Engineering Department Internet Technologies Internet Protocols and Services Dr. Abzetdin ADAMOV Chair of Computer Engineering Department aadamov@qu.edu.az http://ce.qu.edu.az/~aadamov

More information

Networking Applications

Networking Applications Networking Dr. Ayman A. Abdel-Hamid College of Computing and Information Technology Arab Academy for Science & Technology and Maritime Transport Electronic Mail 1 Outline Introduction SMTP MIME Mail Access

More information

1 Accessing E-mail accounts on the Axxess Mail Server

1 Accessing E-mail accounts on the Axxess Mail Server 1 Accessing E-mail accounts on the Axxess Mail Server The Axxess Mail Server provides users with access to their e-mail folders through POP3, and IMAP protocols, or OpenWebMail browser interface. The server

More information

Protocolo FTP. FTP: Active Mode. FTP: Active Mode. FTP: Active Mode. FTP: the file transfer protocol. Separate control, data connections

Protocolo FTP. FTP: Active Mode. FTP: Active Mode. FTP: Active Mode. FTP: the file transfer protocol. Separate control, data connections : the file transfer protocol Protocolo at host interface local file system file transfer remote file system utilizes two ports: - a 'data' port (usually port 20...) - a 'command' port (port 21) SISTEMAS

More information

"Charting the Course... Enterprise Linux Networking Services Course Summary

Charting the Course... Enterprise Linux Networking Services Course Summary Course Summary Description This an expansive course that covers a wide range of network services useful to every organization. Special attention is paid to the concepts needed to implement these services

More information

Domains Help Documentation This document was auto-created from web content and is subject to change at any time. Copyright (c) 2016 SmarterTools Inc.

Domains Help Documentation This document was auto-created from web content and is subject to change at any time. Copyright (c) 2016 SmarterTools Inc. Help Documentation This document was auto-created from web content and is subject to change at any time. Copyright (c) 2016 SmarterTools Inc. Domains All Domains System administrators can use this section

More information

Network Services. Email SMTP, Internet Message Format. Johann Oberleitner SS 2006

Network Services. Email SMTP, Internet Message Format. Johann Oberleitner SS 2006 Network Services Email SMTP, Internet Message Format Johann Oberleitner SS 2006 Agenda Email SMTP Internet Message Format Email Protocols SMTP Send emails POP3/IMAPv4 Read Emails Administrate mailboxes

More information

Math SMTP Server Configuration

Math SMTP Server Configuration Math SMTP Server Configuration Šarūnas Burdulis Version 1, August 3, 2005 Contents 1 Requirements for SMTP Service at Math 1 2 Exim 4 1 3 Spam Filtering 2 4 Virus Detection 3 5 Authentication and TLS 4

More information

Fighting Spam: Tools, Tips, and Techniques

Fighting Spam: Tools, Tips, and Techniques Fighting Spam: Tools, Tips, and Techniques Brian Sebby Argonne National Laboratory NetSecure 08 IIT Center for Professional Development Part I: Introduction 2 Argonne National Laboratory IT Environment

More information

POP3 MAIL SERVER PDF

POP3 MAIL SERVER PDF POP3 MAIL SERVER PDF ==> Download: POP3 MAIL SERVER PDF POP3 MAIL SERVER PDF - Are you searching for Pop3 Mail Server Books? Now, you will be happy that at this time Pop3 Mail Server PDF is available at

More information

APC-Pro sa Computer Service

APC-Pro sa Computer Service Configuring, Managing and Troubleshooting Microsoft Exchange Service Pack 2 (10135B) Durata: 5 giorni Orario: 8:30 12:00 / 13:30-17.00 Costo per persona: CHF 1 900.-- (Min. 5 partecipanti) Obiettivi di

More information

Electronic mail security. MHS (Message Handling System)

Electronic mail security. MHS (Message Handling System) Electronic mail security Diana Berbecaru < diana.berbecaru @ polito.it> Politecnico di Torino Dip. Automatica e Informatica MHS (Message Handling System) MS MS MUA MUA (Message Transfer ) MS (Message Store)

More information

SMTP Servers. Determine if an email message should be sent to another machine and automatically send it to that machine using SMTP.

SMTP Servers. Determine if an email message should be sent to another machine and automatically send it to that machine using SMTP. SMTP Servers SMTP: Simple Mail Transfer Protocol (TCP Port 25) The Simple Mail Transfer Protocol (SMTP) is an Internet standard for transferring electronic mail between computers. UNIX systems implement

More information

THE DEFINITIVE GUIDE TO SETTING UP A LINUX RELAY SERVER FOR MICROSOFT EXCHANGE SERVER

THE DEFINITIVE GUIDE TO SETTING UP A LINUX RELAY SERVER FOR MICROSOFT EXCHANGE SERVER THE DEFINITIVE GUIDE TO SETTING UP A LINUX RELAY SERVER FOR MICROSOFT EXCHANGE SERVER 2000/2003 With Mandriva 2007.1 Spring, Postfix, Spamassassin, Clamav... Index INTRODUCTION...2 What you will need:...2

More information

ECE Mail System Overview. Pablo J. Rebollo ECE Network Operations Center

ECE Mail System Overview. Pablo J. Rebollo ECE Network Operations Center ECE Mail System Overview Pablo J. Rebollo ECE Network Operations Center Agenda Overview of ECE mail system How mail system works SPAM!!! ECE mail system statistics and examples Problems References Mail

More information

Implementing MDaemon as an Email Security Gateway to Exchange Server

Implementing MDaemon as an Email Security Gateway to Exchange Server Implementing MDaemon as an Email Security Gateway to Exchange Server Introduction MDaemon is widely deployed as a very effective antispam/antivirus gateway to Exchange. For optimum performance, we recommend

More information

ENTERPRISE LINUX NETWORKING SERVICES

ENTERPRISE LINUX NETWORKING SERVICES ENTERPRISE LINUX NETWORKING SERVICES The is an expansive course that covers a wide range of network services useful to every organization. Special attention is paid to the concepts needed to implement

More information

Spam fighting with Postfix

Spam fighting with Postfix Spam fighting with Postfix Using technology to fight a social problem Devdas Bhagat Postfix Antispam workshop: Apricot 2004 p. 1 Introduction Postfix in the anti spam war "If you think technology can solve

More information

CS615 - Aspects of System Administration

CS615 - Aspects of System Administration CS615 - Aspects of System Administration Slide 1 CS615 - Aspects of System Administration SMTP, HTTP Department of Computer Science Stevens Institute of Technology Jan Schaumann jschauma@stevens-tech.edu

More information

GL275 - ENTERPRISE LINUX NETWORKING SERVICES

GL275 - ENTERPRISE LINUX NETWORKING SERVICES Length: 5 days The GL275 is an expansive course that covers a wide range of network services useful to every organization. Special attention is paid to the concepts needed to implement these services securely,

More information

Workflow Configuration on R12/R11. High Level Steps. SENDMAIL configuration mostly done by System Administrator Workflow configuration for R12

Workflow Configuration on R12/R11. High Level Steps. SENDMAIL configuration mostly done by System Administrator Workflow configuration for R12 Workflow Configuration on R12/R11 High Level Steps SENDMAIL configuration mostly done by System Administrator Workflow configuration for R12 SENDMAIL Configuration tested on RedHat 4 update 5 -------------------------------------------------------------------

More information

Lab Tasks 1. Configuring a Slave Name Server 2. Configure rndc for Secure named Control

Lab Tasks 1. Configuring a Slave Name Server 2. Configure rndc for Secure named Control Khóa học bao trùm tất cả các vấn đề về dịch vụ mạng trong doanh nghiệp bao gồm: khái niệm DNS, triển khai DNS sử dụng Bind; khái niệm LDAP và sử dụng OpenLDAP; dịch vụ Web với Apache; dịch vụ FTP với vsftpd;

More information

Email services. Anders Wiehe IT department Gjøvik University College

Email services. Anders Wiehe IT department Gjøvik University College Email services Anders Wiehe IT department Gjøvik University College Topics Lessons learnt Planning a new email system Lab: Basic configuration Lab: SMTP:Postfix configuration Lab: POP3/IMAP:Dovecot configuration

More information

Emacs SMTP Library. An Emacs package for sending mail via SMTP. Simon Josefsson, Alex Schroeder

Emacs SMTP Library. An Emacs package for sending mail via SMTP. Simon Josefsson, Alex Schroeder Emacs SMTP Library An Emacs package for sending mail via SMTP Simon Josefsson, Alex Schroeder Copyright c 2003, 2004 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify

More information

Postfix: Status Quo current development an overview

Postfix: Status Quo current development an overview Postfix: Status Quo current development an overview LinuxForum 2006 Copenhagen, 04. March 2006 About T-System Business Services I just work there, I don t sell stuff I reckon we do sailing stuff strategic

More information

Appendix. Web Command Error Codes. Web Command Error Codes

Appendix. Web Command Error Codes. Web Command Error Codes Appendix Web Command s Error codes marked with * are received in responses from the FTP server, and then returned as the result of FTP command execution. -501 Incorrect parameter type -502 Error getting

More information

Ciphermail for BlackBerry Quick Start Guide

Ciphermail for BlackBerry Quick Start Guide CIPHERMAIL EMAIL ENCRYPTION Ciphermail for BlackBerry Quick Start Guide June 19, 2014, Rev: 8975 Copyright 2010-2014, ciphermail.com. Introduction This guide will explain how to setup and configure a Ciphermail

More information

MDaemon Vs. Microsoft Exchange Server 2013 Standard

MDaemon Vs. Microsoft Exchange Server 2013 Standard Comparison Guide Vs. The following chart is a side-by-side feature comparison of and. Flex Licensing Maximum Accounts Unlimited Unlimited SMTP, POP3, DomainPOP, and MultiPOP POP3 & SMTP Only SSL / TLS

More information

ESET Mail Security & Zarafa 7 infrastructure Integration

ESET Mail Security & Zarafa 7 infrastructure Integration ESET Mail Security & Zarafa 7 infrastructure Integration Whitepaper 20-2-2012 -- version 2.0 Donny Maasland donny@nod32.nl Verified 10-2-2012 Remon van Gijn, Zarafa QA r.vangijn@zarafa.com ESET Mail Security

More information

Security and privacy in public WLAN networks

Security and privacy in public WLAN networks Security and privacy in public WLAN networks Savio Lau saviol@cs.sfu.ca March 01, 2005 Roadmap Introduction of public WLAN networks Network security User privacy Experiments and analysis Conclusion March

More information

Using WinGate 6 Email. Concepts, Features, and Configurations.

Using WinGate 6 Email. Concepts, Features, and Configurations. WinGate Feature Guide Using WinGate 6 Email Concepts, Features, and Configurations. Neil Gooden Qbik New Zealand Limited Rev 1.0 December 2004 2 Introduction...3 Basic Email Concepts... 3 Differences in

More information

Simple Mail Transfer Protocol

Simple Mail Transfer Protocol Page 1 of 6 Home : Network Programming Simple Mail Transfer Protocol Contents What is SMTP? Basics of SMTP SMTP Commands Relaying of Messages Time Stamps and Return Path in Message Header Mail Exchangers

More information

Renewal of the Email Services

Renewal of the Email Services Renewal of the Email Services IMAP, SMTP & Co. Wolfgang Friebel Technical Seminar Zeuthen, 6.10.2009 Outline of the talk Schematic view of the mail flow in Zeuthen What will when be changed Receiving email

More information

2- Electronic Mail (SMTP), File Transfer (FTP), & Remote Logging (TELNET)

2- Electronic Mail (SMTP), File Transfer (FTP), & Remote Logging (TELNET) 2- Electronic Mail (SMTP), File Transfer (FTP), & Remote Logging (TELNET) There are three popular applications for exchanging information. Electronic mail exchanges information between people and file

More information

Chapter 2 Application Layer. Lecture 5 FTP, Mail. Computer Networking: A Top Down Approach

Chapter 2 Application Layer. Lecture 5 FTP, Mail. Computer Networking: A Top Down Approach Chapter 2 Application Layer Lecture 5 FTP, Mail Computer Networking: A Top Down Approach 6 th edition Jim Kurose, Keith Ross Addison-Wesley March 2012 Application Layer 2-1 Chapter 2: outline 2.1 principles

More information

Parallels Plesk Panel

Parallels Plesk Panel Parallels Plesk Panel Copyright Notice ISBN: N/A Parallels 660 SW 39th Street Suite 205 Renton, Washington 98057 USA Phone: +1 (425) 282 6400 Fax: +1 (425) 282 6444 Copyright 1999-2010, Parallels, Inc.

More information

GL-275: Red Hat Linux Network Services. Course Outline. Course Length: 5 days

GL-275: Red Hat Linux Network Services. Course Outline. Course Length: 5 days GL-275: Red Hat Linux Network Services Course Length: 5 days Course Description: The GL275 is an expansive course that covers a wide range of network services useful to every organization. Special attention

More information

Configuration Manual for Lime Domains

Configuration Manual for Lime Domains Email Accounts Configuration Manual for Lime Domains Table of Contents Introduction:... 2 To configure your Outlook Express client:... 3 To configure your Microsoft Outlook client:... 12 To configure your

More information

Email Management CSCU9B2 CSCU9B2 1

Email Management CSCU9B2 CSCU9B2 1 Email Management CSCU9B2 CSCU9B2 1 Contents Email clients choosing and using Email message header and content Emailing to lists of people In and out message management Mime attachments and HTML email SMTP,

More information

SMTP Information gathering

SMTP Information gathering Lluis Mora, Neutralbit llmora@neutralbit.com Black Hat Europe Amsterdam, NL // March 2007 securityinnovation Introduction E-mail is present in nearly every organization We all understand how it works How

More information

smtp-user-enum User Documentation

smtp-user-enum User Documentation smtp-user-enum User Documentation pentestmonkey@pentestmonkey.net 21 January 2007 Contents 1 Overview 2 2 Installation 2 3 Usage 3 4 Some Examples 3 4.1 Using the SMTP VRFY Command................. 4 4.2

More information

User guide Business Internet e-mail features

User guide Business Internet e-mail features User guide Business Internet e-mail features Page 1 de 1 Table of content Page Introduction 3 1. How do I access my web based e-mail? 3 2. How do I access/alter these enhancements? 3 A. Basic Features

More information

Mail. AAU 15 marts 2006. Karsten Thygesen CTO, Partner, Netic A/S Side 1

Mail. AAU 15 marts 2006. Karsten Thygesen CTO, Partner, Netic A/S Side 1 Mail AAU 15 marts 2006 Karsten Thygesen CTO, Partner, Netic A/S karthy@netic.dk Side 1 History of Email 1971: Ray Tomlinson invented SENDMSG and READMAIL for Arpanet. Used the user@host addressing. 1977:

More information

KASPERSKY LAB. Kaspersky Anti-Virus 5.5 for Linux and FreeBSD Mail Servers ADMINISTRATOR S GUIDE

KASPERSKY LAB. Kaspersky Anti-Virus 5.5 for Linux and FreeBSD Mail Servers ADMINISTRATOR S GUIDE KASPERSKY LAB Kaspersky Anti-Virus 5.5 for Linux and FreeBSD Mail Servers ADMINISTRATOR S GUIDE KASPERSKY ANTI-VIRUS 5.5 FOR LINUX AND FREEBSD MAIL SERVERS Administrator's guide Kaspersky Lab, Ltd. http://www.kaspersky.com

More information

Talk-101 User Guides Mailgate Administration Guide

Talk-101 User Guides Mailgate Administration Guide Talk-101 User Guides Mailgate Administration Guide Contents Contents... 2 Accessing the Mailgate Interface... 3 Adding a new domain... 3 User Aliases... 7 Update 09/06/2005 Page: 2 of 7 Accessing the Mailgate

More information

9236245 Issue 2EN. Nokia and Nokia Connecting People are registered trademarks of Nokia Corporation

9236245 Issue 2EN. Nokia and Nokia Connecting People are registered trademarks of Nokia Corporation 9236245 Issue 2EN Nokia and Nokia Connecting People are registered trademarks of Nokia Corporation Nokia 9300 Configuring connection settings Legal Notice Copyright Nokia 2005. All rights reserved. Reproduction,

More information

MailStore Server 5.0 Documentation

MailStore Server 5.0 Documentation MailStore Server 5.0 Documentation 2010 deepinvent Software GmbH 24. May 2011 Products that are referred to in this document may be either trademarks and/or registered trademarks of the respective owners.

More information

Email Client configuration and migration Guide Setting up Thunderbird 3.1

Email Client configuration and migration Guide Setting up Thunderbird 3.1 Email Client configuration and migration Guide Setting up Thunderbird 3.1 1. Open Mozilla Thunderbird. : 1. On the Edit menu, click Account Settings. 2. On the Account Settings page, under Account Actions,

More information

GET /FB/index.html HTTP/1.1 Host: lmi32.cnam.fr

GET /FB/index.html HTTP/1.1 Host: lmi32.cnam.fr GET /FB/index.html HTTP/1.1 Host: lmi32.cnam.fr HTTP/1.1 200 OK Date: Thu, 20 Oct 2005 14:42:54 GMT Server: Apache/2.0.50 (Linux/SUSE) Last-Modified: Thu, 20 Oct 2005 14:41:56 GMT ETag: "2d7b4-14b-8efd9500"

More information

sendmail Cookbook Craig Hunt O'REILLY' Beijing Cambridge Farnham Koln Paris Sebastopol Taipei Tokyo

sendmail Cookbook Craig Hunt O'REILLY' Beijing Cambridge Farnham Koln Paris Sebastopol Taipei Tokyo sendmail Cookbook Craig Hunt O'REILLY' Beijing Cambridge Farnham Koln Paris Sebastopol Taipei Tokyo Table of Contents Preface xi 1. Getting Started 1 1.1 Downloading the Latest Release 5 1.2 Installing

More information

eprism Enterprise Tech Notes

eprism Enterprise Tech Notes eprism Enterprise Tech Notes Utilizing Microsoft Active Directory for eprism s Directory Services Context eprism can integrate with an existing LDAP (Lightweight Directory Access Protocol) directory for

More information

MPP Manager Users Guide

MPP Manager Users Guide MPP Manager Users Guide Spam Quarantine and Email Archive Administration \ August, 2008 MPP Mable of Contents 1 About This Guide 4 1.1 MPP Manager Overview 4 1.2 Other Documentation 4 2 Mppserver MPP Manager

More information

FTP: the file transfer protocol

FTP: the file transfer protocol File Transfer: FTP FTP: the file transfer protocol at host FTP interface FTP client local file system file transfer FTP remote file system transfer file to/from remote host client/ model client: side that

More information

CSI 3140. Lab 1 : Exercise 1. 1.1 Find the IP address of www.whitehouse.gov www.site.uottawa.ca www.pastis.org. Or, another way:

CSI 3140. Lab 1 : Exercise 1. 1.1 Find the IP address of www.whitehouse.gov www.site.uottawa.ca www.pastis.org. Or, another way: CSI 3140 Lab 1 : Exercise 1 1.1 Find the IP address of www.whitehouse.gov www.site.uottawa.ca www.pastis.org C:\Documents and Settings\gvj>nslookup www.whitehouse.org Name: www.whitehouse.org Address:

More information

Detailed Revision History: Advanced Internet System Management (v5.07)

Detailed Revision History: Advanced Internet System Management (v5.07) Detailed Revision History 1 Detailed Revision History: Advanced Internet System Management (v5.07) This detailed revision history document identifies the differences in Advanced Internet System Management

More information

Emailing from The E2 Shop System EMail address Server Name Server Port, Encryption Protocol, Encryption Type, SMTP User ID SMTP Password

Emailing from The E2 Shop System EMail address Server Name Server Port, Encryption Protocol, Encryption Type, SMTP User ID SMTP Password Emailing from The E2 Shop System With recent releases of E2SS (at least 7.2.7.23), we will be allowing two protocols for EMail delivery. A new protocol for EMail delivery Simple Mail Transfer Protocol

More information

USAGE TIPS IMPROVING THE EFFICIENCY OF THE SPAM FILTER

USAGE TIPS IMPROVING THE EFFICIENCY OF THE SPAM FILTER USAGE TIPS IMPROVING THE EFFICIENCY OF THE SPAM FILTER Introduction For all Business Domain hosting services, Adam Internet provides the ability to add SPAM and VIRUS filtering. You can refer to our Usage

More information

Evolution of the WWW. Communication in the WWW. WWW, HTML, URL and HTTP. HTTP - Message Format. The Client/Server model is used:

Evolution of the WWW. Communication in the WWW. WWW, HTML, URL and HTTP. HTTP - Message Format. The Client/Server model is used: Evolution of the WWW Communication in the WWW World Wide Web (WWW) Access to linked documents, which are distributed over several computers in the History of the WWW Origin 1989 in the nuclear research

More information

Cannot send Autosupport e-mail, error message: Unknown User

Cannot send Autosupport e-mail, error message: Unknown User Cannot send Autosupport e-mail, error message: Unknown User Symptoms Unable to send Autosupport e-mails and the following error message is reported: asup.smtp.fail http://now.netapp.com/eservice/ems?emsaction=details&eventid=200573&software=ontap&em

More information

CSE/ISE 311: Systems Administra5on Email Administra5on

CSE/ISE 311: Systems Administra5on Email Administra5on Email Administra5on Don Porter Theme Email systems started with a pre5y simple design Everyone trusted each other, it was nice Then spam came along Lots of complexity and distrust to try to reduce spam

More information

Open Thunderbird. To set up an e-mail account in Thunderbird, from the Tools menu select Account Settings; choose Email account; then click Next.

Open Thunderbird. To set up an e-mail account in Thunderbird, from the Tools menu select Account Settings; choose Email account; then click Next. Server Type: POP3 or IMAP Incoming(POP3 or IMAP) Mail Server: student.ncnm.edu POP3 Port: 995 (SSL) IMAP Port: 993 (SSL) Outgoing(SMTP) Mail Server: student.ncnm.edu SMTP Port: 587 (TLS) (Users must change

More information

Email Electronic Mail

Email Electronic Mail Email Electronic Mail Electronic mail paradigm Most heavily used application on any network Electronic version of paper-based office memo Quick, low-overhead written communication Dates back to time-sharing

More information

If your response to any of the questions above was Yes, then SmarterMail Enterprise Edition may be right for you.

If your response to any of the questions above was Yes, then SmarterMail Enterprise Edition may be right for you. Professional Edition vs. Enterprise Edition SmarterMail Professional Edition has all of the features required to host a fully-functional mail server. SmarterMail Enterprise Edition offers additional features,

More information

Elenco Porte TCP/UDP

Elenco Porte TCP/UDP Elenco Porte TCP/UDP Autore: DPS SRL Creato il: 13 Oct 2008 10 : 50 AM da 0 a 1023 PortaDescrizione 1/tcpTCP Multiplexor 2/tcpcompressnet Management Utility 3/tcpcompressnet Compression Process 7/tcpEcho

More information

Configuring MDaemon for Centralized Spam Blocking and Filtering

Configuring MDaemon for Centralized Spam Blocking and Filtering Configuring MDaemon for Centralized Spam Blocking and Filtering Alt-N Technologies, Ltd 2201 East Lamar Blvd, Suite 270 Arlington, TX 76006 (817) 525-2005 http://www.altn.com July 26, 2004 Contents A Centralized

More information