FileMaker 12's fix for the malformed Message-ID is no fix at all
Operating system version
Mac OS X 10.8
Description of the issue
In FIleMaker 12 a fix for the malformed message ID bug (of putting domainnamenotspecified.net) after the @ sign, instead of nothing, doesn't really help. It might pass muster in a test environment but in the real world it runs up against a problem in that some spam filters compare the domain name in the message ID to that in the from or reply-to lines.
The most sensible fix would be to simply take the domain name from the reply-to address and insert that, instead of 'domainnamenotspecified.net'. Or allow us to specify it in the SMTP server dialog box.
Steps to reproduce the problem
Send an email via FileMaker's built in SMTP functionality.
Message-ID will look something like this:
It would be great if instead it was