Off-Campus ISP Outgoing E-Mail Servers

Many outside Internet service providers (ISPs) recently started blocking the port that allows users to connect to the CSU, Chico outgoing mail server. If you are using a standalone e-mail client such as Outlook Express, Netscape Mail, Mac Mail, or others, and have it configured to check your campus mail, you may not be able to send e-mail. If you are unable to send e-mail, you will need to either log into your Wildcat Mail or Outlook/Exchange mail via the web, or configure your mail client to use your ISP's outgoing mail server.

Notes: Some providers (including SBC/ATT and DISH) require you to authenticate to their server for outgoing mail. You must use your account name and password with that service.

Make sure that the username and password authentication are set for the accounts provided by the ISPs.

For AT&T, Comcast, and DISH, your "username" is your full e-mail address, i.e.,, not just username.

Provider Outgoing Mail Server Port Uses SSL Requires Authentication
465   Yes (And Verification)
Digital Path      
Comcast     Yes      
DISH (WildBlue) 465 Yes
Hughesnet     Yes

Your Internet service provider not in this list? Try this website of popular ISP outgoing SMTP mail servers, or contact your ISP.