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ES Mail: How to configure Apple Mail (for Webmail/ES Mail users) & Troubleshoot Email Sending Issues


5.0 - Updated on 07-15-2022 by Sylvia Bass

4.0 - Updated on 03-10-2021 by Mike Caban

3.0 - Updated on 03-10-2021 by Mike Caban

2.0 - Updated on 03-10-2021 by Mike Caban

1.0 - Authored on 05-06-2015 by Mike Caban

Use the directions below to set up your software to check UCI’s OIT MailBox Services email (aka Webmail). If you are using UCI Gmail, please stop and consult these instructions instead.

Apple has streamlined the process so you no longer need to specify port numbers and protocols (e.g. 993, SSL)

  1. Select the Apple icon in the upper-left of your screen and select System Preferences.
  2. Select Internet Accounts.
  3. Select Add Other Account.
  4. Select Mail account.
  5. In the window that appears, enter your Name, email address ( and then enter your password. Then, select Sign In.
  6. On the next page, re-enter your UCInetID for the username (the field will show your email address as the username, so just delete it out and replace it with just your UCInetID). Make sure IMAP is selected for Account Type.
  7. Incoming Mail Server should read and Outgoing Mail Server should read Select Sign In to complete the setup.
  8. Select Done and then close System Preferences.
  9. Open Apple Mail and after a moment, your email should appear.

Troubleshooting Issues Sending Email

If you are unable to send email, please confirm your SMTP settings are correct. Bear in mind that if you recently updated your password on, you need to go through these steps to enter the new password.

Go to Preferences-->Accounts. Make sure you select the UCI account on the left and then click the Outgoing Mail Server (SMTP) pulldown menu. Then, select Edit SMTP Server List.
In the window that appears, make sure you select the UCI account up above and then down below, verify that Server Name reads and TLS Certificate says None.

Then click on the Advanced tab.

Click OK to close the window and then close the Account Settings window.