The RETR command did not succeed.
Need help in the following error message. Is this a problem with Thunderbird or it is a problem with MS outlook365? Any solution to fix this?
The RETR command did not succeed. Error retrieving a message. Mail server outlook.office365.com responded: Server Unavailable. 21
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I am using Thunderbird to connect to Comcast Xfinity email server. mail.comcast.net port 995
mail.comcast.net sending RETR error