On 19 Oct 2018, at 1:15, Stefan Bauer wrote:
Seems like smtpd_milters are also used before
any other check_*_access and rbl checks/header checks etc.,
Incorrect.
All of the smtpd restriction lists (except for the rarely-used
smtpd_end_of_data_restrictions) operate before any message data is seen
by Postfix. Milters *can* operate at any step of the SMTP transaction on
whatever information is available at those times, but message data
filtering can obviously only work at end-of-data time.
--
Bill Cole