What order the attachments are listed in the RFC 822 message shouldn't matter as long as you've grouped them correctly. You've figured out the right scheme, so you should be alright.
What's your question? How to determine wheter a given attachment is inline or not? -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Monday, February 09, 2009 9:19 AM To: [email protected] Subject: [openchange][devel] multipart/related Hello all, Some brainstorming: In order for Thunderbird and Evolution to display inline images that are referred to in a 'cid' URL, I need to bracket the body and the images with Content-Type: multipart/related, and I need to print a Content-ID header which is not an issue. If an email contains only a body and some cid images, Exchange gives me the expected multipart/related header and everything is fine. However, when an email contains an inline image, for example a company logo in a signature, and a regular attachment, for example a pdf file, I get the following: Content-Type: multipart/mixed; boundary="--part1" ----part1 Content-Type: text/plain blah blah <img src="cid:123@abc"> ----part1 Content-Type: image/jpeg Content-ID: <1...@abc> 7651djfgarty893475789 ----part1 Content-Type: application/pdf 846578962ergfjksdghfv346bv ----part1-- What Thunderbird would need should look like this: Content-Type: multipart/mixed; boundary="--part1" ----part1 Content-Type: multipart/related; boundary="--part1A" ----part1A Content-Type: text/plain blah blah <img src="cid:123@abc"> ----part1A Content-Type: image/jpeg Content-ID: <1...@abc> 7651djfgarty893475789 ----part1A-- ----part1 Content-Type: application/pdf 846578962ergfjksdghfv346bv ----part1-- Printing those extra headers shouldn't be too diffuclt, but I would have to make sure that the attachments are in the right order. In particular, all attachments that have a Content-ID that appears in the body should come before all the others that don't. Do we know how Exchange sorts the attachments or is there a way to control it? I think I've read somewhere on MSDN that attachments should be sorted in the way they should be rendered. I would assume that this means all the inline stuff comes before the real attachments, but I am not sure. Is anyone familiar with this issue? I'd appreciate it if you could share some thought and ideas. thanks dirk -- Be Yourself @ mail.com! Choose From 200+ Email Addresses Get a Free Account at www.mail.com _______________________________________________ devel mailing list [email protected] http://mailman.openchange.org/listinfo/devel ---------------------------------- Barracuda Networks makes the best spam firewalls and web filters. www.barracudanetworks.com _______________________________________________ devel mailing list [email protected] http://mailman.openchange.org/listinfo/devel
