What seem odd is that it has only recently become a problem for me, so something has changed in one of the recent updates to cause it to be an issue. I searched for this issue and it seems it has been an off and on bug for several years. Portions of this content are ©19982022 by individual contributors. Otherwise the email sending would hang on attaching signature image. Report Misuse of Thunderbird Trademark Thunderbird is now part of MZLA Technologies Corporation, a wholly owned subsidiary of Mozilla Foundation. When I replied again I had to delete not only my previous signature image, but also his signature image to get the email to send. I received a reply from the recipient whom also had images in his signature. Tick the Attach a signature from a file instead (text, HTML, or image): checkbox. I stripped all the signature images except the most current signature image from a reply I made. How to setup your HTML email signature in Mozilla Thunderbird for macOS.

The image will only attach if it is the only signature image.įor example. I can send a message with no issues, however if the recipient replies and I attempt to reply, it inserts my signature again and will not actually attach the signature unless I delete the images in the original and subsequent replies. Using version 15.0.1 and I believe this started a couple of versions ago, but can not verify for certain.

Mozilla thunderbird signature image