The server responded: 421 resomta-c2p-555955.sys.comcast.net Excessive failed authentication

I have two differnet comcast email accounts in our home and we get this everyday. Can't send out emails most of the time. Can you please help with this. Thank you.

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XfinityBenjaminM

Official Employee

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1.6K Messages

2 months ago

sbmont Hello! Thank you for reaching out to us here on our Community Forum. Have you tried removing and then entering your email accounts again to see if that error goes away?

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BruceW

Gold Problem Solver

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26K Messages

2 months ago

I have two differnet comcast email accounts in our home and we get this everyday. ...

Please see https://forums.xfinity.com/conversations/email/cannot-send-email-0x800ccc0f-connection-to-server-interrupted-or-0x800ccc67-esmtp-server-temporarily-not-available-message/61b28270f06968168603033a?commentId=61b7a0b5f069681686037267 and the posts before and after that one in that topic. Your IP address will likely be different from the one in that post, but the concepts still apply.

Please be aware that there are 2 kinds of responses in this Forum: Replies and Comments. When you Comment on a post by scrolling down to "Comment on this post here...", I am notified of your response. But if you select Reply, I am NOT notified and may not be aware of your response.

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sbmont

Visitor

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2 Messages

I will try setting up a brand new profile in Outlook and let you know what happens.

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2 months ago

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XfinityEricB

Official Employee

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1.7K Messages

sbmont We will be here if you need us.

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer. tick

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2 months ago

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sbmont

The server responded: 421 resomta-c2p-555955.sys.comcast.net Excessive failed authentication

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