On Tue, 21 Mar 2017, Mike Guelfi wrote:
If people want to use a non RFC compliant verification system, then they're
going to have problems with false positives on their spam filter.
The operative word being: they.
Your customer needs to get their email vendor to whitelist your trac
instance. You don't need to do anything....
In real world that does not work. In the last time I looked deeper into
DMARC and sent some failure descriptions about bad DMARC setups. My
success rate ATM is 1:10 - means one postmaster answered and fixed his
setup afterwards. If I had sent 50 mails I assume my success rate would be
1:50.
But if you are willing to volunteer - you can start with AT&T or
Microsoft. They have blocking on large network segments and each
mailserver needs to individually register with them to send mail. Please
convince them to use proper systems instead.
Ciao
--
http://www.dstoecker.eu/ (PGP key available)
