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Setting Up Mail on Mac for OS X 10.6.x – 10.9.x for IMAP

Follow these steps to set up Mail for Mac OS X to access your UCSD email account using Internet Message Access Protocol (IMAP).

Before you start

  • You need your Active Directory (AD) username and password. If you forget your password, you can reset it.
  • If you aren't on the central campus mail server (mail.ucsd.edu), get your department's incoming mail server name.
  • Images vary depending on your version of OS X.

Microsoft Exchange

If your e-mail account has been migrated, use these settngs as you go through the following steps:

  • Username (full and official UCSD e-mail address): username@ucsd.edu
  • Incoming server: outlook.office365.com

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1. Open Apple Mail

  • Open Mail from your dock or open the program from the Applications folder.

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2. Enter general information.

  • The Mail Setup window appears the first time you set up Mail.
    • Note: For Mac OS 10.6.x, enter your full name, email address, and AD username and password at this step. If "searching for mail servers..." takes more than a minute, click Cancel, and then click Continue.
  • Select IMAP as your Account Type.
  • Enter the name you want to call the account in the Account Description field.
  • Enter your Full Name and Email Address in their relevant fields.
  • Click Continue.

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3. Enter incoming server information.

  • Enter mail.ucsd.edu in the Incoming Mail Server field.
    • Note: For Mac OS 10.6.x, also choose IMAP for Account Type, and enter a description for this account.
  • Enter your AD User Name (the part of your UCSD e-mail address before the @ symbol) and Password in the relevant fields.
  • Click Continue. Mail connects to the incoming mail server to verify your settings.

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4. Enter outgoing server information.

  • Select smtp.ucsd.edu from the Outgoing Mail Server (SMTP) drop-down menu.
  • Check Use Authentication, and enter your AD username and password.
  • Click Continue.

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5. Finish mail setup.

  • Verify your information in the Account Summary window.
  • Click Continue.

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6. Open preferences.

  • Select Preferences from the main Mail menu.

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7. Enter advanced settings.

  • Select Accounts.
  • Select the account you wish to modify from the Accounts list.
  • Click the Advanced tab.
  • Select Enable this account, if not already selected.
  • Leave the rest of the fields at their default settings.

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8. Configure SSL for send and receive.

  • Select Preferences from the main Mail menu. With SSL, your computer communicates with UCSD's mail server over an encrypted channel.
  • Select the account you wish to modify from the Accounts list.
  • Click the Advanced tab.
  • Click Use SSL. The port number changes automatically from 143 to 993.
  • Set the Authentication field to Password.

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9. Open the Server Settings window.

  • Click the Account Information tab.
  • Click the up/down arrow next to Outgoing Mail Server (SMTP).
  • Click Edit Server List...

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10. Add or modify a server


  • Click the + sign to add a new server, or double click on the current server to modify or verify settings.
  • Enter smtp.ucsd.edu in the Server Name field.

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11. Edit Advanced settings.

  • Click the Advanced tab.
  • Select Use default ports (25,465,587).
  • Select Use Secure Sockets Layer (SSL).
  • Select Password from the drop-down menu next to Authentication.
  • Enter your AD username and password in the relevant fields.
  • Click OK, then close the window.

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12. Verify the server's identity.


  • Download the certificate to your desktop.
    • Firefox customers: Hold down the control key and click the hyperlink. Choose Save link and save to your desktop.

    Note: SSL protocol uses certificates to verify the server's identity. UCSD uses self-signed certificates. Every time you open the Mail program, it prompts you to verify the server's authenticity until you add the certificate to your system-wide keychain.

  • Double-click the new digicert.crt file on your desktop.
  • For Leopard (OS 10.5.x), select X509 Anchors from the Keychain drop-down menu when the Add Certificates window appears.
  • For Snow Leopard (OS 10.6.x), the digicert.crt file will automatically be entered into Keychain Access.
    • Double click DigiCert Security Service CA in Keychain Access.
    • Click on the right arrow next to Trust.
    • Select Always Trust in the drop-down menu next to "When using this certificate."
  • Click OK to finish.
  • Close and restart Mail.

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13. Verify your settings.

  • Select Preferences from the main Mail menu.
  • Select the account you wish to verify or change from the Accounts list.
  • Verify your email address and name.
  • Verify the Incoming and Outgoing Mail Servers.
  • Verify the User Name and Password.
  • Close the window.

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14. Add an additional account.

  • Select Preferences from the Mail menu.
  • Click the + sign at the bottom left-hand corner of the Accounts window.
  • Enter your new account information following the steps above.

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15. Configure attachment settings.

  • Click Edit on the main menu bar at the top of your screen.
  • Scroll down to Attachments and select Always Insert Attachments at End of Message.

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