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Thursday, December 9th, 2021

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Cannot send email... (0x800CCC0F) Connection to server interrupted - or - (0x800CCC67) ESMTP server temporarily not available message

I am a former xfinity subscriber that kept my comcast.net email address.  I access my email through Microsoft Outlook 365 on Windows 10 via a POP3 connection.  My wife who has an identical laptop configuration is experiencing these same problems on her machine.  About 3 months ago out of the blue, we started to get one of the subject error messages when we attempt to send messages; however, the errors oddly only begin to occur around 8:00 a.m. - 10:00 a.m. and then persist through the rest of the day when you attempt to send email.  Receiving mail during all hours works without a problem. 

The next morning without me intervening in any way, I can again send and receive email until I get into the 8-10 am window when the send errors start reappearing.  This process repeats itself day-after-day.  

I can login into xfinity's website and send mail from my xfinity webmail account during times when I'm getting the send errors on my laptop.  I also run into similar problems from my android phone that runs a Samsung email app.  During the same times I can't send email from my laptop, I can't send email from my phone either.  

When I get one of the two send errors above, the emails will just stay in my outbox all day long as outlook continues to try to send them.  Yet, then at some point during the late-night hours, something must be reset on xfinity's end of things, I'm able to reconnect to the server, and the emails will send - without me doing anything on my end.  

 

I've called Comcast numerous times on this issue during the past 3 months and they insist the problem is on my end.  I'm convinced the problem is on theirs.  My theory is that as a current nonsubscriber, I am likely routed through different server infrastructure.  As more and more people like myself have cut the cord with Comcast, demands on this secondary infrastructure have increased, and Comcast is refusing to invest to upgrade it since we are nonpaying customers.  So, I'm beginning to doubt that there is a fix for this except to abandon my twenty-two year old comcast.net email.  

Any thoughts from anyone on this?  And suggestions on who where would be a good place to move to (e.g., gmail)?

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