This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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.

Rohkem teavet

Failed sending outlook mail via Thunderbird

  • 2 vastust
  • 0 on selline probleem
  • Viimati vastas Optimist

more options

Hello,

I hope you're doing well. I'm a faitthfull supporter of mozzila and thunderbird, so happy to have the app thunderbird now - thanks for that :) I'm using thunderbird to access my outlook adress since years. But, few weeks ago I can't send mail anymore (still receiving it) via thunderbird. I tried a lot of solutions, checked online the [[topic Microsoft OAuth Authentication and Thunderbird in 2024|https://support.mozilla.org/en-US/kb/microsoft-oauth-authentication-and-thunderbird-202?_gl=1*pm7jt7*_ga*MzEzODU1MDYyLjE2ODkyMzY3NTE.*_ga_R3H4BDP5J2*MTczNDk2ODU4Mi4xLjAuMTczNDk2ODU4Mi4wLjAuMA..]] topic

But still nothing, I'm beginning to despair and I don't want stop using thunderbird but it's become really anoying. Can you help me please?

thanks and merry christmas ! Yo

Hello, I hope you're doing well. I'm a faitthfull supporter of mozzila and thunderbird, so happy to have the app thunderbird now - thanks for that :) I'm using thunderbird to access my outlook adress since years. But, few weeks ago I can't send mail anymore (still receiving it) via thunderbird. I tried a lot of solutions, checked online the [[topic Microsoft OAuth Authentication and Thunderbird in 2024|https://support.mozilla.org/en-US/kb/microsoft-oauth-authentication-and-thunderbird-202?_gl=1*pm7jt7*_ga*MzEzODU1MDYyLjE2ODkyMzY3NTE.*_ga_R3H4BDP5J2*MTczNDk2ODU4Mi4xLjAuMTczNDk2ODU4Mi4wLjAuMA..]] topic But still nothing, I'm beginning to despair and I don't want stop using thunderbird but it's become really anoying. Can you help me please? thanks and merry christmas ! Yo

All Replies (2)

more options

Hi Optimist,

What happens when you try to send?

Rick

Helpful?

more options

Hi,

I've this message error :

"Message failed to send. Unable to authenticate on outgoing server (SMTP). Please check your password and “Authentication method” in the “Account settings | Outgoing server (SMTP)” menu."

  • I checked and change passwords few times, uninstall and restinall on android and windows
  • Activated and disactivaed 2FA authy, without success
  • I can receive the mail but cannot send it
  • My other mail adress (disroots, hotmail) are working normally

Here details Description: Outlook.com (Microsoft) Server name: smtp.office365.com Port: 587 User name: xxxxxx@outlook.fr Authentication method: OAuth2 Connection security: STARTTLS

Thanks for your help and happy new year ! Opti

Helpful?

Küsimuse postitamine

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