Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

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

The RETR command did not succeed.

  • 2 回覆
  • 29 有這個問題
  • 4 次檢視
  • 最近回覆由 jtcavuotisr

more options

Need help in the following error message. Is this a problem with Thunderbird or it is a problem with MS outlook365? Any solution to fix this?

The RETR command did not succeed. Error retrieving a message. Mail server outlook.office365.com responded: Server Unavailable. 21

Need help in the following error message. Is this a problem with Thunderbird or it is a problem with MS outlook365? Any solution to fix this? ''' The RETR command did not succeed. Error retrieving a message. Mail server outlook.office365.com responded: Server Unavailable. 21'''

所有回覆 (2)

more options

I am using Thunderbird to connect to Comcast Xfinity email server. mail.comcast.net port 995

more options

mail.comcast.net sending RETR error