Hey all, I'm wondering how best I can change the message ID in the header of emails. I use Zarafa 7x on an internal machine and I don't believe there is a way to change the header easily with that software.
Here's an example from my email headers Message-Id: <zarafa.4e46e3b1.34ed.5958f4b758a6c...@my.domain.com> The problem is, is that "my.domain.com" is an internal server that sends mail to a relay server. I don't want people really seeing my internal domain or IP. I was able to change other parts of the header to remove my local address using header_checks. I'd like to have postfix dynamically change "my.domain.com" only on Message-Id header to some arbitrary domain that would be public-facing for all outgoing mail and change it back for incoming mail. Unfortunately, I'm not quite sure how to do that. I would appreciate any assistance. Thanks!
