Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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 can no longer send or reply to emails on Thunderbird. Is there a fix? Thanks.

  • 2 replies
  • 5 have this problem
  • 1 view
  • Last reply by Stans

more options

I can no longer send or reply to emails with Thunderbird. Is there a fix?

I can no longer send or reply to emails with Thunderbird. Is there a fix?

All Replies (2)

more options

What exactly happens when you try to send a message? Who is your email service provider?

more options
I am unable to send emails on Thunderbird. Is there a fix? Thanks. I have "Outlook". When I try to send a message on thunderbird, this message pops up: "The message could not be sent because connecting to the Outgoing server (SMTP) 587 failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server )SMTP) settings are correct and try again."

Post all your replies here and NOT in a private message.

Go to Thunderbird's menu > Help > Troubleshooting Information > Mail and News Accounts. Select everything in that table and paste it in your reply.