ATT/Yahoo Sending Email Error

Where I work I’m the self proclaimed server administrator and most of the time it’s an ‘Easy Breezy Cover Girl’ hat to wear. Unfortunately, over the weekend and changed their outgoing server settings and requirements. Incidentally, this required updating and patching Outlook and changing everyone’s email smtp outgoing server settings.

No big deal, but would have been nice to know up front and more in depth explanations of what needed to be changed. So, I intend to cover what I did to get our office emal back up to snuff in both Outlook Express and Mozilla Thunderbird. My situation is based on having a basic business DSL and email account with

The first problem I had was that any computer other than the confirmed computer with the address was unable to send email. After a quick search I found that there were some settings that needed to be changed in our Email clients.

  • Set outgoing server to use a secure connection(SSL).
  • Change Port used to 465

No biggie, unfortunately this didn’t fix my problem, since my computer was not the original that verified it’s account with ATT. While researching further I found that the computer confirmed with ATT quit being able to send emails. Keep in mind we were still able to receive without any issues, sending was the only function of our email which was giving errors. Once tracked down I found that the employee was using an outdated version of Outlook, which was a partial culprit.

Outlook 2002 required a patch to be compatible with SSL connections. A quick trip to and updating the program fixed the issue, obviously after adjusting the outgoing server settings. Mozilla Thunderbird comes ready to roll with the latest abilities to use SSL connections, so no update was necessary.

After getting Outlook patched and outgoing server settings changed I needed to setup separate email accounts with Yahoo mail, to allow for other computers to send email, other than the original authorized account. Through the email options section in Yahoo email I was able to add an account for myself, which they authorized all outgoing mail and no further problems were found.

Please, Yahoo, next time you do this send out a notification with detailed instructions for common fixes such as this. My Monday would have been so much nicer..

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