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

Putting a mailto link in a Thunderbird signature file

  • 2 replies
  • 1 has this problem
  • 1 view
  • Last reply by Debbie53

more options

I am starting a small mailing list for a newsletter. I would like to put an "unsubscribe" message in a signature file that opens up a new message to write in the user's email program with the return address and subject already filled in, so they can just click "send" to automatically be unsubscribed. I saved the following as a file that I then select to use as the signature for the mailing list:

If you no longer wish to receive our newsletter, click Unsubscribe to be removed from this list.

When I send a test message to myself, it looks okay and the link is clickable, but when I click on it, nothing happens. Is there something wrong with my format, or is what I am trying to do not possible? Thank you.

I am starting a small mailing list for a newsletter. I would like to put an "unsubscribe" message in a signature file that opens up a new message to write in the user's email program with the return address and subject already filled in, so they can just click "send" to automatically be unsubscribed. I saved the following as a file that I then select to use as the signature for the mailing list: <html> <b>If you no longer wish to receive our newsletter, click <a href=”mailto:unsubscribe-request@example.com?subject=unsubscribe">Unsubscribe</a> to be removed from this list.</b> </html> When I send a test message to myself, it looks okay and the link is clickable, but when I click on it, nothing happens. Is there something wrong with my format, or is what I am trying to do not possible? Thank you.

Chosen solution

In the attached picture, the word unsubscribe is selected, then Ctrl+K to enter the link. When the link is clicked in the received mail, TB launches a new message to the janedoe address, with unsubscribe as the Subject. If that isn't working when you use the same syntax, the setting for mailto links may not be correct in the OS, or maybe there's an incorrect preference in TB.

Make sure you create the signature file with the TB message composer.

Read this answer in context 👍 1

All Replies (2)

more options

Chosen Solution

In the attached picture, the word unsubscribe is selected, then Ctrl+K to enter the link. When the link is clicked in the received mail, TB launches a new message to the janedoe address, with unsubscribe as the Subject. If that isn't working when you use the same syntax, the setting for mailto links may not be correct in the OS, or maybe there's an incorrect preference in TB.

Make sure you create the signature file with the TB message composer.

more options

I originally tried doing this in the message composer, but I think I pasted HTML into the box instead of just typing as a normal message. Anyway, it worked fine the way you told me. Thanks so much!