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!

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

E-mails sent from barry@a.com is received as if from barry@m.com (a is an addon domain of b)

  • 3 回覆
  • 1 有這個問題
  • 1 次檢視
  • 最近回覆由 barrydevlin

more options

Hi, Since 27 Oct (? update to 52.9.1) when I send an e-mail from barry@a.com [not the real domain name!], replies come back to barry@m.com. m.com is my main domain at my hosting company and a.com is an addon domain.

In my sent folder, the mail looks normal with - From: "Barry" <barry@a.com> When I look at the mail as received by (e.g.) gmail, it shows - From: "Barry" <barry@b.com>

This also happening on another installation of Thunderbird on a different machine. It also happens with all addon domain mail addresses.

This is a real challenge as I have used multiple email addresses for many years for different purposes, such as business and personal, and I cannot really live with the new situation.

Any help is really appreciated. Many thanks, Barry.

Hi, Since 27 Oct (? update to 52.9.1) when I send an e-mail from barry@a.com [not the real domain name!], replies come back to barry@m.com. m.com is my main domain at my hosting company and a.com is an addon domain. In my sent folder, the mail looks normal with - From: "Barry" <barry@a.com> When I look at the mail as received by (e.g.) gmail, it shows - From: "Barry" <barry@b.com> This also happening on another installation of Thunderbird on a different machine. It also happens with all addon domain mail addresses. This is a real challenge as I have used multiple email addresses for many years for different purposes, such as business and personal, and I cannot really live with the new situation. Any help is really appreciated. Many thanks, Barry.

所有回覆 (3)

more options

This sounds like you might compose and see email address A in the FROM field, but when you send you are not actually using email address A as the outgoing smtp server, you are sending using the email address B outgoing smtp server. Hence server sees this as sending using the email address of B, so any replies will go to B.

Check what outgoing server your mail accounts are using. Each email address should be using it's own smtp server.

  • Right click on mail acccount in Folder Pane and select 'Settings'
  • Bottom left, click on 'Outgoing Server (SMTP)'
  • You should have an smpt server for each email address.
  • select smtp server in list.
  • click on 'Edit'
  • Description: enter something meaningful to help identify the difference between similar sever names. eg: Personal or Business or Addon Domain etc
  • Username = email address of mail account.
  • click on OK

Select other smtp server and do a similar action of changing the Description. I you only have one outgoing smto server listed, then click on 'Add' and create one for the other email address. Although the server settings are the same , the username (email address) and password are different.

Make sure those email address's / mail accounts are using the correct outgoing server.

  • Select mail account/email address in left pane.
  • bottom right will show what smtp server it is using.
  • Select correct one for email address.

Do this both both mail accounts. I believe one will be correct already, but the other will be using the wrong one.

  • click on 'OK' to save and exit Account Settings window.
  • Exit Thunderbird.
  • Wait a few moments for background processes to complete.
  • Start Thunderbird.


example images to assist

more options

Thank you - I will check this now.

I have always used only one smtp server for all accounts and it worked until last week. Has something changed in this area?

Many thanks, Barry.

more options

Hi again, I have now tested this out and it works perfectly :-)

I don't know how the problem arose on Oct 27th - but I'm very happy that all is working well again!

Many, many thanks, Barry.