It probably WAS them. Xfinity/Comcast's email system has been sick since yesterday. I think it may be finally working OK for me now (but that could change.) How about you?

Starting yesterday not receiving email from xfinity, xfinity claims it is not them, on my end thunderbird says connection refused.

Sounds like your mail server settings might’ve changed. Double-check the incoming/outgoing server names, ports, and SSL in Thunderbird. Sometimes Xfinity updates those and you need to re-enter them.

Starting on 11/09, I'm not able to get my Xfinity email via Thunderbird. I can logon to the Xfinity Web Email interface so I'm pretty sure I have the password correct. I have been using POP3 for incoming. I tried changing to IMAP by creating a new Thunderbird account but still no luck.

Thunderbird says, "Thunderbird failed to find the settings for your email account."

Any suggestions?

I changed the SMTP config to use port 995 and it seemed to work. Not sure if Xfinity changed something or what but it's working now.

You probably mean you changed the IMAP port, rather than the SMTP port. The default IMAP port is 995 and the default SMTP port is 465 - Comcast uses the default for both.

My working settings for Comcast are:

Comcast IMAP Mail Settings Server Name: imap.comcast.net Port: 993 User Name: <your email address> Connection security: SSL/TLS Authentication method: Normal password

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