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I can't send a email in Thunderbird. Error message: "login to account att.net with username [REDACTED BY MODERATOR]@sbcglobal.net failed."

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This just started today. I can receive my mail, but I can't send it in Thunderbird. I called AT&T and they won't help. When I go to att.net I can send and receive my email at the site. Please help.

[Personal information removed by moderator. Please read Forum rules and guidelines, thanks.]

This just started today. I can receive my mail, but I can't send it in Thunderbird. I called AT&T and they won't help. When I go to att.net I can send and receive my email at the site. Please help. ''[Personal information removed by moderator. Please read [[Forum rules and guidelines]], thanks.]''

Modified by Chris Ilias

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sfhowes
  • Top 10 Contributor
1548 solutions 7410 answers

Do you have a security program scanning outgoing mail? Perhaps the program updated and suddenly became incompatible with TB. Disable scanning of outgoing (and incoming) mail, if it's in place, and see if you can send.

Do you have a security program scanning outgoing mail? Perhaps the program updated and suddenly became incompatible with TB. Disable scanning of outgoing (and incoming) mail, if it's in place, and see if you can send.
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Question owner

I turned off my Eset and I still can't send outgoing email, though I still get incoming email.

Thanks for your suggestion.

I turned off my Eset and I still can't send outgoing email, though I still get incoming email. Thanks for your suggestion.
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sfhowes
  • Top 10 Contributor
1548 solutions 7410 answers

See this discussion about secure mail keys:

https://support.mozilla.org/en-US/questions/1225036

See this discussion about secure mail keys: https://support.mozilla.org/en-US/questions/1225036
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Question owner

I read the article and still don't know what to do. I think I need help resetting my Thunderbird settings so that they coincide with att/yahoo.

Thanks for answering my query.

I read the article and still don't know what to do. I think I need help resetting my Thunderbird settings so that they coincide with att/yahoo. Thanks for answering my query.
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sfhowes
  • Top 10 Contributor
1548 solutions 7410 answers

Once you create a secure mail key:

https://www.att.com/esupport/article.html#!/email-support/KM1240308?gsi=4f2qg6

open Tools/Options/Security/Passwords/Saved passwords, click show passwords, right-click the entry for the ATT incoming and outgoing servers, Edit Password, and copy in your secure mail key, OK to close Options. When you restart TB, see if you can receive and send mail.

If you hadn't saved passwords in Options before, you will be prompted to enter the password (mail key) at the next connection, so enter it and check the box to have it stored in saved passwords.

Once you create a secure mail key: https://www.att.com/esupport/article.html#!/email-support/KM1240308?gsi=4f2qg6 open Tools/Options/Security/Passwords/Saved passwords, click show passwords, right-click the entry for the ATT incoming and outgoing servers, Edit Password, and copy in your secure mail key, OK to close Options. When you restart TB, see if you can receive and send mail. If you hadn't saved passwords in Options before, you will be prompted to enter the password (mail key) at the next connection, so enter it and check the box to have it stored in saved passwords.
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Question owner

Hi, Thank you for your reply. I'm a bit overwhelmed with the changes I must make at att and thunderbird. I'm not even sure, after doing all of this, that thunderbird and att will sync up. I'm very afraid of losing my incoming messages at thunderbird. That has happened before when I changed passwords. Again, thanks for the help.

Hi, Thank you for your reply. I'm a bit overwhelmed with the changes I must make at att and thunderbird. I'm not even sure, after doing all of this, that thunderbird and att will sync up. I'm very afraid of losing my incoming messages at thunderbird. That has happened before when I changed passwords. Again, thanks for the help.
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