> On Sep 15, 2020, at 7:33 PM, Benny Pedersen <[email protected]> wrote:
>
> header_checks is incomming mails
>
> smtp_header_checks is outgoing mails
Not exactly. All mail comes in, and then it goes out.
* header_checks is before transport resolution and delivery scheduling
* smtp_header_checks is during delivery via SMTP
To the extent that SMTP delivery is *outbound* (rather than inbound
relaying at an edge gateway) your point stands.
As for *outbound* email (going to outside parties), it goes through *both*
header_checks and smtp_header checks.
--
Viktor.
