Re: suggestions for altering outbound SMTP to work-around multi-CC denials

[email protected] writes:
> Recently, mail to recepients at several domains (gmail.com, verizon.net)=
 is being refused when multiple receipients are CC'ed (even when
> only a small number -- 2, 3 -- of people are CC'ed). This behavior
> is repeatable and consistent, not transient failures.

FWIW, I've not noticed that, and I do it all the time.  On my
principal work mailing lists (www.postgresql.org), it's been
customary for decades to reply-all, so the cc: list on any
long-running thread is likely to come to a dozen or two people,
and usually some of them have gmail addresses.

I know that the list maintainers grumble a lot about the hoops
they have to jump through to keep mail flowing to gmail.  But
the copies that go out from my personal mail server don't get
bounced, or at least not for that reason.

My own beef with gmail arises with people who have vanity
domains that they forward to gmail.  Whatever forwarding
method gmail recommends seems to cause the forwarded messages
to fail SPF checks against my SPF record, and then they
bounce back to me.

			regards, tom lane