為了改善您的使用體驗,本網站正在進行維護,部分功能暫時無法使用。若本站的文件無法解決您的問題,想要向社群發問的話,請到 Twitter 上的 @FirefoxSupport 或 Reddit 上的 /r/firefox 發問,我們的社群成員將很快會回覆您的疑問。

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

了解更多

Thunderbird Cannot Send Email Through Outlook Account

  • 4 回覆
  • 0 有這個問題
  • 1 次檢視
  • 最近回覆由 tjcorcoran

more options

I installed Thunderbird 115.0.1 on Windows 11. I configured it for two accounts. One was a custom domain managed by Google, the second an Outlook account with my Office365 subscription.

Both receive mail fine. Neither would send mail. Investigating further I found that Thunderbird never got a firewall exception. I added the exception and now the Google account sends and receives fine. Outlook will still not send.

I've removed and re-added the Outlook account a couple of times now. No joy. I have found a lot of conflicting information on SMTP server settings but currently have the queried (auto configured) smtp.office365.com server on port 587 with my account credentials for login, connection security of 'STARTTLS' and authentication method of 'normal password'.

I've tried a couple of other email clients and they work out of the box. Any help would be appreciated.

-T

I installed Thunderbird 115.0.1 on Windows 11. I configured it for two accounts. One was a custom domain managed by Google, the second an Outlook account with my Office365 subscription. Both receive mail fine. Neither would send mail. Investigating further I found that Thunderbird never got a firewall exception. I added the exception and now the Google account sends and receives fine. Outlook will still not send. I've removed and re-added the Outlook account a couple of times now. No joy. I have found a lot of conflicting information on SMTP server settings but currently have the queried (auto configured) smtp.office365.com server on port 587 with my account credentials for login, connection security of 'STARTTLS' and authentication method of 'normal password'. I've tried a couple of other email clients and they work out of the box. Any help would be appreciated. -T

被選擇的解決方法

The outgoing server is smtp.office365.com, 587, STARTTLS, OAuth2 authentication, User Name = email address.

https://support.mozilla.org/en-US/questions/1417298#answer-1588949

從原來的回覆中察看解決方案 👍 0

所有回覆 (4)

more options

My smtp server is outlook.office365.com

more options

Tried that. Still doesn't work. I practiced my google-fu and found Microsoft's published settings:

SMTP Server Server Name: smtp-mail.outlook.com Port: 587 Connection Security: STARTTLS

It also says no encrypted authentication required, so I left it (after trying all of them) on 'Normal Password'.

I finally find a client I like and now this! ;P

-T

more options

選擇的解決方法

The outgoing server is smtp.office365.com, 587, STARTTLS, OAuth2 authentication, User Name = email address.

https://support.mozilla.org/en-US/questions/1417298#answer-1588949

more options

Success! Combination was off. Thank you @sfhowes