Using TLS encryption with OS X Mail This guide assumes that you have already created an account in Mail. If you have not, you can use the new account wizard. The new account wizard is in the Accounts window of the Preferences screen and is activated by pressing the plus (+) sign at the bottom left corner of the window. Use either beloit.edu or stu.beloit.edu, depending on where your account is, as the POP server and bcmail.beloit.edu as the SMTP server. Doing this does not enable TLS encryption for sending or receiving mail and does not enable authentication on the SMTP server. Encryption and authentication are not required for use on campus, although ISR strongly recommends that you enable them. If you wish to use the Beloit College mail server to send mail from an off campus location, you must enable authentication and encryption. 1. Open the preferences screen by opening the Mail menu and selecting Preferences... 2. Open the accounts page by pressing the Accounts button from the top toolbar. Make sure that your Beloit College account is the one selected in the left pane of the Account window. Under the Account Information tab, look for Outgoing Mail Server (SMTP) near the bottom of the screen. Click the Outgoing Mail drop down menu and select Edit Server List.
3. If you do not have a Beloit College mail server entry (look under the server name for bcmail.beloit.edu, beloit.edu, or stu.beloit.edu), click the + button to add a server. Use Beloit College as the description and use bcmail.beloit.edu as the server name. If you do already have a Beloit server in the list, click to select it. Make sure that server name is bcmail.beloit.edu. If it is not, change the server name by typing bcmail.beloit.edu in the Server Name field at the bottom of the window.
4. Make sure that the Beloit College server entry is highlighted and click the Advanced button in the lower window pane. Under Server Port enter 2525. Check the box Use Secure Socket Layer(SSL). Then under authentication, select Password from the drop down menu. Lastly, enter your Beloit College username and password in the fields below the authentication box. Click OK to accept the changes.
5. Click the Advanced tab in the Account preferences window. Near the bottom of the window, it will say Check with your system administrator before changing any of the advanced settings below. Check the box that says Use SSL. The Port field next to it will change to 995. Leave it at the default. Make sure that the Authentication option is set to Password. After you are finished, close the Accounts window.
5. Attempt to send a message to yourself. After you click the send button, Mail will warn you about an SSL certificate. In order to keep it from asking you to verify the certificate each time you login and send mail, click Show Certificate. 6. At the certificate trust screen, select netreg.beloit.edu and check the Always Trust netreg.beloit.edu box. You may be prompted for your machine administrator password. When you are finished, click connect to send the email.
7. If you did not enter your password when configuring the SMTP server, you will now be prompted for your Beloit College account password. The password is the same password used to retrieve your mail and the same password used to login to your account using webmail. 8. Check your mail. You may be prompted again about an SSL certificate and for your password. Once again, click Show Certificate, click the available server certificate (either stu.beloit.edu or beloit.edu, depending on your account), and select the Always Trust checkbox. You may have to enter your machine's administrator password again. You should see at least the test message you sent earlier and any new mail you may have received since the last time you logged into your account. Mail is now configured for use on and off campus with TLS encryption for both incoming and outgoing mail.