How do I authenticate with the CS SMTP mail server?

You will need to create a SMTP email password to authenticate with our SMTP mail server. This is not the same as your CS account password and must be set separately. You can do this online. The smtp authentication process is case sensitive for both the login name and the password.

  • Server:
  • Connection security: STARTTLS
  • Authentication method: Encrypted
  • Port: Default (or 587, see below)

If you are experiencing login failures, your ISP may be blocking/redirecting port 25/tcp, or your client (e.g. Outlook) may not be able to initiate a secure connection on port 25. In that case you can use port 587/tcp instead.

If you have questions or problems, send mail to gripe [at] cs [dot] utexas [dot] edu.