Visitor

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2 Messages

Saturday, December 27th, 2025 8:35 PM

new istall of Thunderbird problem

I got a new computer for Christmas.  It has Windows 11 Pro OS. I would like to use Thunderbird as email client.  The process lets me input user and password, the get to xfinity email login but then tells me Access Denied on the login server. What do I do next?

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Expert

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29.8K Messages

3 days ago

@user_e2eb02 

Did you try putting the account settings into Thunderbird manually, or did you try to just use the auto-configuration?  Has your account been migrated to Yahoo yet?

Official Employee

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2.3K Messages

1 day ago

Thank you for reaching out here. If you have not migrated your service over to Yahoo as yet, you may need to reach out to the security team at the https://spa.xfinity.com/help site for an access denied message. 

Expert

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29.8K Messages

2 hours ago

@user_e2eb02 

In Thunderbird you may also need to make sure that the IMAP and SMTP server names reflect the Yahoo information.  When I transitioned one of my accounts, the Thunderbird data base automatically put in the Comcast server names because of the Comcast email address.  So I had to do that manually.

Expert

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33.2K Messages

18 minutes ago

You can find information on Yahoo's mail servers here:
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