John Allen:
> Is there a way of negating a smtpd condition.
> For example if I were to apply c "check_sender_access sql_lookup" under
> submission in master.cf would it be possible to say something like
> !check_check_acess ... under smtpd restrctions
>
> The idea being that if example.com is allowed access via submission they
> are denied access via smtpd.
The Postfix design is not optimized for negation.
You could use pipemap:{sql_lookup, map-that-replaces-permit-with-reject},
plus a static:reject map to provide the answer if there was none in the
original map.
check_something_access unionmap:{
pipemap:{
sql_lookup,
map-that-replaces-permit-with-reject
},
static:{reject and this is why}
}
Requires Postfix 3.0 or later.
Wietse
