Had to reformat my pc and have been unable to get Thunderbird to connect to my Outlook.com account again. I have no problem connecting to Yahoo. Using Windows 7 and have checked and double checked my in and outgoing server settings and they are correct. Any help would be appreciated.

  • 1
    Is there any specific error message it's giving you?
    – kazoni
    Jun 22, 2015 at 23:41
  • Login to server smtp-mail.outlook.com failed.
    – Kathy
    Jun 23, 2015 at 0:57

3 Answers 3


Try the following:

1.       Open Thunderbird.
2.       From the Application menu, choose Add Account…
3.       Input your account information, choose Options… then Account Settings…
4.       Click the Account Actions button, then choose Add Mail Account…
5.       Input your account information.
6.       Click Continue.
7.       Click Manual config.
8.       Set the Incoming settings as follows:
          a.       Server hostname: imap-mail.outlook.com.
          b.      Port: 993.
          c.       SSL: SSL/TLS.
          d.      Authentication: Normal password.

9.       Set the Outgoing settings as follows:  
          a.       Server hostname: smtp-mail.outlook.com.
          b.      Port: 587.
          c.       SSL: STARTTLS.
          d.      Authentication: Normal password.

10.   Click Done.

The description is from here. If that doesn't work explain what errors you are receiving?

  • Login to server smtp-mail.outlook.com failed.
    – Kathy
    Jun 23, 2015 at 0:51
  • it also suggests i re enter my password which i carefully do but that doesn't work either
    – Kathy
    Jun 23, 2015 at 0:52
  • Are you putting username@outlook.com or just username for your account name?
    – Abraxas
    Jun 23, 2015 at 0:55
  • my email address
    – Kathy
    Jun 23, 2015 at 1:00
  • a rep from Outlook just walked me through all the settings and could not find anything wrong
    – Kathy
    Jun 23, 2015 at 1:00

Try going into settings for the smtp outgoing server and change the port to 25 and try it. Try sending an email. Then try port 465. They will both attempt to connect rather than say it cant find smtp-mail.outlook.com. After that switch it back to port 587. Hopefully it works then. Mine Did. Works like a charm now.


If you have two-step verification enabled on your account, you need to create a new app password and use that for authentication with thunderbird. Login into outlook -> go to your microsoft account settings -> security -> App passwords -> Create a new app password


Some apps and devices (such as Xbox 360, Windows Phone, or mail apps on your other devices) don't support security codes for two-step verification. In these cases, you need to create an app password to sign in. Learn more about app passwords.

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