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!

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.

Learn More

Thunderbird not attaching the correct file for attachment.

  • 1 reply
  • 1 has this problem
  • 1 view
  • Last reply by Toad-Hall

more options

I need to send a new message through mail merge with a new attachment. I save the new message with the new attachment as a template then I click on the template and choose send/mail merge. The mail merge dialog box opens and lists an old attachment or no attachment.

I am using TB 45.2.0, Windows 10, IMAP Mail Server, and Message Synchronization has been turned off.

Thank you!

I need to send a new message through mail merge with a new attachment. I save the new message with the new attachment as a template then I click on the template and choose send/mail merge. The mail merge dialog box opens and lists an old attachment or no attachment. I am using TB 45.2.0, Windows 10, IMAP Mail Server, and Message Synchronization has been turned off. Thank you!

All Replies (1)

more options

Tested the issue on my Vista.

Followed same procedure as you. when you click on File > Mail Merge

Make sure you select: Deliver mode: 'Send Later' option - this will put it in the 'Outbox' folder so you can check it. make sure the 'Attachments' is empty - do not want to send an old attachment.


click on OK

Do you see the email in the Outbox and does it have the attachment? It does in my case. In which case you can then use the 'send unsent messages' or delete the email(s) because maybe it was just a test.