Install Kerberos client
To use Kerberos for authentication you must have the appropriate client installed on your computer:
- Windows: Kerberos for Windows
- Mac OS X: Run the Kerberos Configuration Utility in order to configure the Kerberos software included with OS X.
Incoming server settings
- Incoming server: your sunetid.pobox.stanford.edu
- User name: your sunetid
- Authentication type: Kerberos 5 (GSSAPI)
- Secure Sockets Layer (SSL): Optional
- Port: 143 (without SSL) or 993 (with SSL)
Outgoing server settings
If your email client natively supports Kerberos authentication you can use the following settings:
- Outgoing server: smtp.stanford.edu
- Server requires authentication: Yes
- User name: your sunetid
- Authentication type: Kerberos 5 (GSSAPI)
- Secure Sockets Layer (SSL): Required
- Port: 465 (you can also use 25)
If your client does not natively support Kerberos authentication your only option is use use Password authentication over SSL:
- Outgoing server: smtp.stanford.edu
- Server requires authentication: Yes
- User name: your sunetid
- Authentication type: Passwords
- Password: your sunetid password
- Save password: No
- Secure Sockets Layer (SSL): Required
- Port: 465 (you can also use 25)

