> On 10 Mar 2022, at 3:48 pm, Alex <mysqlstud...@gmail.com> wrote: > > Can I use sender_checks to bypass a host like mail.coupahost.com? The > client IP will constantly change, but I can rely on the sending domain > to remain the same.
Conditional header checks require a milter or content filter that
can make such fine distinctions. Postfix built-in header checks
are global.
--
Viktor.
