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Thunderbird 115.12.0 inline image encoding does not work.

Manfred Bartz
Manfred Bartz
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Thunderbird 115.12.0 inline image encoding does not work and neither Thunderbird nor any other email client can decode the images. I would not be concerned if the images were instead sent as attachments -- anything would be better than the situation right now. Here is what a the sent message looks like (truncated):

This is a multi-part message in MIME format.

fJQTc2gkwuQwHEClenU5juw1

Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit

Hi all,

I was able to do this using custom CSS:


And the CSS:


Result can be seen at https://u3aboxhill.com.au/wp/

Regards -- Manfred

Sent from a device that prioritizes functionality over brand

fJQTc2gkwuQwHEClenU5juw1

Content-Type: multipart/related; 

boundary="------------tIS0qvzUR0f5GnY1te0NeTQ6"
tIS0qvzUR0f5GnY1te0NeTQ6

Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit

<meta http-equiv="content-type" content="text/html; charset=UTF-8">

Hi all,

I was able to do this using custom CSS:


And the CSS:


Result can be seen at https://u3aboxhill.com.au/wp/

Regards
--
Manfred

Sent from a device that prioritizes functionality over brand

tIS0qvzUR0f5GnY1te0NeTQ6

Content-Type: image/jpeg; name="Screenshot_2024-06-28_12-30-21.jpg" Content-Disposition: inline; filename="Screenshot_2024-06-28_12-30-21.jpg" Content-Id: <part1.Mgqyv4eh.JLQ644nh@c14.au> Content-Transfer-Encoding: base64

/9j/4AAQSkZJRgABAQEBLAEsAAD/4QCuRXhpZgAASUkqAAgAAAAHABIBAwABAAAAAQAAABoB BQABAAAAYgAAABsBBQABAAAAagAAACgBAwABAAAAAgAAADEBAgANAAAAcgAAADIBAgAUAAAA gAAAAGmHBAABAAAAlAAAAAAAAAAsAQAAAQAAACwBAAABAAAAR0lNUCAyLjEwLjM0AAAyMDI0 OjA2OjI4IDEyOjM2OjE0AAEAAaADAAEAAAABAAAAAAAAAP/hDM9odHRwOi8vbnMuYWRvYmUu Y29tL3hhcC8xLjAvADw/eHBhY2tldCBiZWdpbj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVT ek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG1sbnM6eD0iYWRvYmU6bnM6bWV0YS8iIHg6eG1w dGs9IlhNUCBDb3JlIDQuNC4wLUV4aXYyIj4gPHJkZjpSREYgeG1sbnM6cmRmPSJodHRwOi8v d3d3LnczLm9yZy8xOTk5LzAyLzIyLXJkZi1zeW50YXgtbnMjIj4gPHJkZjpEZXNjcmlwdGlv biByZGY6YWJvdXQ9IiIgeG1sbnM6eG1wTU09Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEu MC9tbS8iIHhtbG5zOnN0RXZ0PSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvc1R5cGUv UmVzb3VyY2VFdmVudCMiIHhtbG5zOmRjPSJodHRwOi8vcHVybC5vcmcvZGMvZWxlbWVudHMv MS4xLyIgeG1sbnM6R0lNUD0iaHR0cDovL3d3dy5naW1wLm9yZy94bXAvIiB4bWxuczp4bXA9 Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC8iIHhtcE1NOkRvY3VtZW50SUQ9ImdpbXA6 ZG9jaWQ6Z2ltcDo0M2Q5N2E0MS1mNGI1LTQ3NTItYTA3Zi1lMGE5MGIwMmJiOWYiIHhtcE1N

Thunderbird 115.12.0 inline image encoding does not work and neither Thunderbird nor any other email client can decode the images. I would not be concerned if the images were instead sent as attachments -- anything would be better than the situation right now. Here is what a the sent message looks like (truncated): This is a multi-part message in MIME format. --------------fJQTc2gkwuQwHEClenU5juw1 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi all, I was able to do this using custom CSS: And the CSS: Result can be seen at https://u3aboxhill.com.au/wp/ Regards -- Manfred Sent from a device that prioritizes functionality over brand --------------fJQTc2gkwuQwHEClenU5juw1 Content-Type: multipart/related; boundary="------------tIS0qvzUR0f5GnY1te0NeTQ6" --------------tIS0qvzUR0f5GnY1te0NeTQ6 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit <!DOCTYPE html> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body> <p>Hi all,</p> <p>I was able to do this using custom CSS:</p> <img moz-do-not-send="false" src="cid:part1.Mgqyv4eh.JLQ644nh@c14.au" alt="" width="571" height="445"> <p><br> </p> <p>And the CSS:</p> <p><img moz-do-not-send="false" src="cid:part2.UVuE19Dn.U5PvhwVu@c14.au" alt="" width="303" height="231"></p> <br> <p>Result can be seen at <a href="https://u3aboxhill.com.au/wp/" class="moz-txt-link-freetext">https://u3aboxhill.com.au/wp/</a> <br> </p> <div class="moz-signature">Regards<br> -- <br> Manfred<br> <br> Sent from a device that prioritizes functionality over brand</div> </body> </html> --------------tIS0qvzUR0f5GnY1te0NeTQ6 Content-Type: image/jpeg; name="Screenshot_2024-06-28_12-30-21.jpg" Content-Disposition: inline; filename="Screenshot_2024-06-28_12-30-21.jpg" Content-Id: <part1.Mgqyv4eh.JLQ644nh@c14.au> Content-Transfer-Encoding: base64 /9j/4AAQSkZJRgABAQEBLAEsAAD/4QCuRXhpZgAASUkqAAgAAAAHABIBAwABAAAAAQAAABoB BQABAAAAYgAAABsBBQABAAAAagAAACgBAwABAAAAAgAAADEBAgANAAAAcgAAADIBAgAUAAAA gAAAAGmHBAABAAAAlAAAAAAAAAAsAQAAAQAAACwBAAABAAAAR0lNUCAyLjEwLjM0AAAyMDI0 OjA2OjI4IDEyOjM2OjE0AAEAAaADAAEAAAABAAAAAAAAAP/hDM9odHRwOi8vbnMuYWRvYmUu Y29tL3hhcC8xLjAvADw/eHBhY2tldCBiZWdpbj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVT ek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG1sbnM6eD0iYWRvYmU6bnM6bWV0YS8iIHg6eG1w dGs9IlhNUCBDb3JlIDQuNC4wLUV4aXYyIj4gPHJkZjpSREYgeG1sbnM6cmRmPSJodHRwOi8v d3d3LnczLm9yZy8xOTk5LzAyLzIyLXJkZi1zeW50YXgtbnMjIj4gPHJkZjpEZXNjcmlwdGlv biByZGY6YWJvdXQ9IiIgeG1sbnM6eG1wTU09Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEu MC9tbS8iIHhtbG5zOnN0RXZ0PSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvc1R5cGUv UmVzb3VyY2VFdmVudCMiIHhtbG5zOmRjPSJodHRwOi8vcHVybC5vcmcvZGMvZWxlbWVudHMv MS4xLyIgeG1sbnM6R0lNUD0iaHR0cDovL3d3dy5naW1wLm9yZy94bXAvIiB4bWxuczp4bXA9 Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC8iIHhtcE1NOkRvY3VtZW50SUQ9ImdpbXA6 ZG9jaWQ6Z2ltcDo0M2Q5N2E0MS1mNGI1LTQ3NTItYTA3Zi1lMGE5MGIwMmJiOWYiIHhtcE1N

Chosen solution

it seems that Thunderbird does not encode images properly unless you dive deep into settings and set mail.strictly_mime = true.

Why oh why isn't that the default???

Read this answer in context 👍 0

All Replies (1)

Manfred Bartz
Manfred Bartz Question owner
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Chosen Solution

it seems that Thunderbird does not encode images properly unless you dive deep into settings and set mail.strictly_mime = true.

Why oh why isn't that the default???

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