I've applied a few patches from the bugtracker to master.
3428168: RFC 5751 compliance for S/MIME
3170864: fix incorrect display of non-ASCII names of attachments
3201704: fix signed+encrypted S/MIME messages
3530512: Do not disclose local hostname in message-id if domainname is available.
Feel free to test out and report any issues with any of these.
Andraž 'ruskie' Levstik
Source Mage GNU/Linux Games/Xorg grimoire guru
Re-Alpine Coordinator http://sourceforge.net/projects/re-alpine/
Be sure brain is in gear before engaging mouth.