We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Unable to log in at server

kerry.reeves53
kerry.reeves53
more options

I'm trying to add an ATT e-mail account to Thunderbird 91.4.1. I keep getting "Unable to log in at server". I know my username and password work as I have this mail account open in another tab hosted by Yahoo. What do I need to do? see picture attached

I'm trying to add an ATT e-mail account to Thunderbird 91.4.1. I keep getting "Unable to log in at server". I know my username and password work as I have this mail account open in another tab hosted by Yahoo. What do I need to do? see picture attached
Attached screenshots

Chosen solution

I solved my own problem. I signed in to my ATT account and created a secure mail key. What this means is that I created a new username and password. I then used these new Username and Password in Thunderbird for my ATT e-mail. And it worked.

Read this answer in context 👍 0

All Replies (1)

kerry.reeves53
kerry.reeves53 Question owner
more options

Chosen Solution

I solved my own problem. I signed in to my ATT account and created a secure mail key. What this means is that I created a new username and password. I then used these new Username and Password in Thunderbird for my ATT e-mail. And it worked.