Comcast Email just stopped sending/receiving suddenly using Outlook for Mac (with Office 365 Subscription)
I use MS Outlook for Mac v 16.56 (21121100) with a MS 365 Subscription license. Two days ago I abruptly stopped receiving Comcast emails and could not send any either (they just sit in outbox). When I try to send/receive, I get an Outlook message that says: "Mail could not be received at this time. The server for account <my account> returned the error "[AUTHENTICATIONFAILED] authentication failed.." and then it asks if I want to try re-entering my password, if I say yes and enter my password (which is correct) it just gives me the same message. I haven't changed my settings but my email account went from showing a green dot to a yellow dot.
I've researched the various threads and tried following the different instructions with different settings (incoming server imap.comcast.net and mail.comcast.net), different ports (993, 587, etc.). I've tried creating it as a new account in Outlook (IMAP/POP option), enter all the correct info, tried the various incoming servers (map.comcast.net, mail.comcast.net), used the different combos of ports suggested in various threads (993, 465; 993, 567 etc.) and I get the error "Unable to sign in. Check your credentials and try again." My password is correct. So can't create it anew in Outlook. I can still send/receive my emails on my iPhone, and via the Mail program on my Mac (macOS Big Sur v11.6). I don't use Norton.
Has anyone else had this happen? Any suggestions or can you point me in a direction with accurate instructions? (The xfinity link that provides instructions for the various 3rd party email clients doesn't list Outlook for Mac and when I use the "other client" settings I get the error above). Any help is appreciated - thank you in advance!