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fg's profile

New Member


1 Message

Mon, Sep 18, 2017 3:00 PM

Email migration difficulties

Last week, a Comcast support staffer helped me change my email settings to point to the new Outlook 365 server addresses. I was able to receive and send mail using my Thunderbird email client at that time. Today I am unable to receive or send, and the message received when trying is "Not an IMAP 4 server".

1. Why is this a problem now when it wasn't last week?


2. Will I be forced to use the Outlook 365 email client instead of Thunderbird to handle my email? 

Official Employee


1.1K Messages

4 y ago

Hi fg and welcome to the support forums.


I would like to review your new email settings. Please private message me your account number and the name of your business. Also, please include your email address.