On Fri, Jan 24, 2020 at 10:04:26AM -0800, Fred Morris wrote:
> I want to call a milter as a "bump in the wire" before this check to
> potentially alter local recipients prior to them ricocheting off of all
> of that shininess.
>
> net -> Postfix -> Postfix
> ^ ^
> | |
> v v
> milter local_recip_maps
Milters get to process each SMTP command as it comes in, however
smtpd_recipient_restrictions are processed before handing off "RCPT TO"
to the milter. So the milter cannot modify the recipient address before
local_recipient_maps checks happen.
You can use socketmap tables in local_recipient_maps if for some reason
you want to apply some non-trivial computation to the address in order
to determine whether it is valid.
--
Viktor.
