Inline images in outbound email

RT Users
3

I have the same problem. Until now I’ve used plain text correspondence so I didn’t notice this before.

I’m using RT4 (4.4.1) in Debian 9 (stretch). Don’t know if this matters but this system was initially installed in Debian 7 and then upgraded to the present state.

My Correspondence in HTML template is:

RT-Attach-Message: yes
Content-Type: text/html

{$Transaction->Content(Type => "text/html");}

The email message structure the users are getting is:

     MULTIPART/MIXED
1    MULTIPART/ALTERNATIVE
1.1  TEXT/PLAIN
1.2  TEXT/HTML
2    TEXT/HTML
3    IMAGE/PNG

The html part 1.2 inside the MULTIPART/ALTERNATIVE is simply the plain text message wrapped around a <pre> tag. Part 2 is the proper html message, with images with CID source. However the part displayed both in thunderbird and gmail is part 1. The end result is that the users are not able to see the images inline.

I’ve also applied the patches mentioned here, (affected files: SendEmail.pm and MessageBox). No success.

Any help is appreciated!

Thank you.