Please quote the exact error message you see, in full. When did this start? Have you received the "invitation" from Comcast to migrate your email to Yahoo?

Your account settings should not change without your intervention, but it's good to confirm them anyway. Here are my working Comcast IMAP and SMTP settings. How do they compare with yours? Pay particular attention to the Authentication Method which should NOT be OAUTH2:

Incoming Server Type: IMAP Mail Server Incoming Server Name: imap.comcast.net Port: 993 User Name: <my email address> Connection Security: SSL/TLS Authentication method: Normal Password

SMTP Server Name: smtp.comcast.net Port: 465 Connection Security: SSL/TLS Authentication method: Normal password User Name: <my email address>

Here are the POP3 server settings, in the rare case you use POP3 rather than IMAP: POP3 (Incoming): Incoming Server Type: POP Mail Server Incoming Server Name: pop3.comcast.net Port: 995 User Name: <my email address> Connection Security: SSL/TLS Authentication method: Normal Password

Depending on what you find we can take additional steps.

Hi Lin my email has been working fine until today to answer your questions here it is NO I didn't make any changes or received the "invitation" from Comcast to migrate your email to Yahoo my imap has port 993 set and smtp port 465 and I am using normal password . here is the error that I am getting over and over again "Login to server imap.comcast.net with user id [edited]@comcast.net failed" with options of Retry, Enter New Password, Cancel I have tried all three neither works Please help

thank you