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Outlook Thunderbird Desktop & Android: Unable to send email

  • 2 replies
  • 0 have this problem
  • 6 views
  • Last reply by DavidGG

bobismyuncle
bobismyuncle
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I'm no longer able to send messages from Outlook in Thunderbird desktop or Android. I can receive just fine. I've made changes, and nothing seems to work. I always receive the message below in the default settings in Thunderbird after setting up the Outlook account:

Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again.

I know it must be related to OAuth but anyone have a fix?

I'm no longer able to send messages from Outlook in Thunderbird desktop or Android. I can receive just fine. I've made changes, and nothing seems to work. I always receive the message below in the default settings in Thunderbird after setting up the Outlook account: Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again. I know it must be related to OAuth but anyone have a fix?

All Replies (2)

david
david
  • Top 10 Contributor
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It may help to post a screenshot of your SMTP server settings pane.

Helpful?

DavidGG
DavidGG
  • Top 10 Contributor
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Instructions to set up Microsoft accounts in Thunderbird using OAuth are provided here, if that's what you're looking for:

https://support.mozilla.org/kb/microsoft-oauth-authentication-and-thunderbird-202

Helpful?

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