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user_qrj01b
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09/05/2026 2:35 PM

Comcast IMAP authentication failing despite valid webmail login

@Comcast.net email works in Xfinity webmail with the same username/password. Third Party Access Security is enabled. Account has not migrated to Yahoo. IMAP is configured with imap.comcast.net, SSL, port 993 and the full email address as username but third party mail clients reject the credentials as incorrect. Please check fo an account-level IMAP authentication / provisioning issue. 

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2 months ago

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XfinityBenjaminM

Official Employee

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3.5K Messages

2 months ago

 

user_qrj01b Hello! Thank you for reaching out to us here on our Community Forum. We are sorry to hear that you're having some issues using your email with a third-party mail client. We'll be happy to look into this. We also see your Direct Message. In the future, please wait to be invited to send a DM, as it is against our Forums Guidelines to send an Unsolicited Direct Message to an Official Xfinity Employee. We will respond to your DM shortly, but please remember to follow the process in the future.

 

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