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Configuring Your Email Program

The configuration instructions on this page are for the  Zimbra Email and Calendar service.

Note: If you have already migrated to Office 365 and need to temporarily map your Zimbra mailbox to the Zimbra Outlook Connector or to an old account, use the Zimbra server name instead of the SUNet ID for the incoming mail server. For example, use instead of You can find the server name by going to; the server name is listed in the address bar.

Select your email program

Select your email program from the list and click the button at the bottom to display the configuration instructions for your program.

Change default configuration options

You can customize your configuration instructions by changing the defaults listed for the following categories:


The IMAP protocol stores your mail on the server. For those who need to access all of their email from more than one computer it is probably the best choice. The POP protocol, by default, downloads messages to your computer and then deletes them from the mail server. If you leave all of your email on a primary computer (for example, your office computer) but want to have access to recently received email on a secondary computer (a home computer), you should leave your messages on the server for a limited period of time.

Passwords over SSL Kerberos

A secure login is required to receive your @stanford email. Stanford's default configuration requires the use of Secure Socket Layer (SSL) encryption in order to securely transmit your password and all communication between your email client and our incoming servers.

Those who are using an email program that includes support for Kerberos (OS X Mail) and who wish to use Kerberos for Windows or Kerberos for Macintosh to take advantage of Kerberos's secure authentication process and single sign-on capabilities can select Kerberos above to get the appropriate configuration instructions.

Last modified August 18, 2015