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

I am getting the following error message "Sending of password for user kmendall@att.net did not succeed. Mail server pop.att.yahoo.com responded: Server error - Please try again later."

  • 5 replies
  • 1 has this problem
  • 118 views
  • Last reply by keith20mm

more options

Hello!

I have been using Thunderbird as my desktop email client for years. About a week ago, I started getting this email error message:

"Sending of password for user kmendall@att.net did not succeed. Mail server pop.att.yahoo.com responded: Server error - Please try again later."

When I searched the community database, it suggested that I had to comply with the oauth code ATT started using a while back. Well, I did that when the issue first arose several years ago and have never had any problems. Until now.

I did nothing with Thunderbird or any of my email accounts that might have caused the error message to suddenly appear. It's possible that there was an auto-update that may have done something. The other 6 email accounts that I have linked to my Thunderbird account all still work (but they are not @att.net domain emails). It's just the "kmendall@att.net" address that gets the error message. The email account still works as I can access it via webmail.

Any help you could provide would be greatly appreciated.

I am using a 2 year old Dell PC desktop running Windows 10.

Thanks in advance! Kindra

Chosen solution

Confirm your AT&T settings, and enter a secure mail key instead of the account password.

https://www.att.com/support/article/dsl-high-speed/KM1010523/

The correct incoming server for POP is inbound.att.net on 995, SSL/TLS, normal password. Use normal password authentication with a secure mail key.

https://support.mozilla.org/en-US/questions/1313640

https://support.mozilla.org/en-US/questions/1314254

Read this answer in context 👍 1

All Replies (5)

more options

Chosen Solution

Confirm your AT&T settings, and enter a secure mail key instead of the account password.

https://www.att.com/support/article/dsl-high-speed/KM1010523/

The correct incoming server for POP is inbound.att.net on 995, SSL/TLS, normal password. Use normal password authentication with a secure mail key.

https://support.mozilla.org/en-US/questions/1313640

https://support.mozilla.org/en-US/questions/1314254

Helpful?

more options

If you are using ESET/NOD32 security/AV then probability is very high it is causing your problems. According to their forums, you should temporarily disable SSL until they solve the problem per https://support.eset.com/en/kb3126-disable-ssl-filtering-in-eset-windows-products?ref=esf - the problem is being reported by dozens of users https://forum.eset.com/topic/26517-problems-with-thunderbird-and-imaps/ https://forum.eset.com/discover/

Helpful?

more options

Wayne Mery said

If you are using ESET/NOD32 security/AV then probability is very high it is causing your problems. According to their forums, you should temporarily disable SSL until they solve the problem per https://support.eset.com/en/kb3126-disable-ssl-filtering-in-eset-windows-products?ref=esf - the problem is being reported by dozens of users https://forum.eset.com/topic/26517-problems-with-thunderbird-and-imaps/ https://forum.eset.com/discover/

Thanks for the idea but I am not using ESET/NOD32 security.

Helpful?

more options

for other AT&T users with similar problem, more info on AT&T is also here.

Helpful?

more options

Using a browser, such as a current version of Firefox, login to your yahoo email account. On your Account page, locate Account Security, and Manage Your Passwords (note: Yahoo changes terminology, so you have to get the gist of this)

Create a NEW Password, the encrypted kind, by providing some Token like THUNDERBIRD or TBird.

Yahoo will grind this up and make you a new key, and then provide that back to you in its new, regenerated, form.

Copy this new key and save it some "safe place", like in the closet under the old shoes, and in a file and on the clipboard.

Go to your email client, Like THUNDERBIRD, and using Options, Security, Saved Passwords, set it to show them. FInd your old entry for pop and smtp for the email addresses with a problem, and Remove them, after jotting them down ("Set to SHOW THEM")

Now Remove those lines from "saved passwords"

Now close that page, and on the TBird accounts page, click Get Mail. When it asks for the password, Paste from the Clipboard the New Secure Password that Yahoo generated, and click "Use Password Manager to Save" and then OK get the mail.

TBird should now provide the new secret, ground up, reconstituted, password to Yaooo POP and/or SMPT servers.

Hope this helps, and why Yaooo and ATT suddenly decides who and which emails get messed with, I cannot answer.

Modified by keith20mm

Helpful?

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.