Jan P. Kessler schrieb:
Tom Diehl schrieb:
Hi,
I have a machine running postfix-2.3.2 that processes mail for about
100 virtual
domains. One of my customers wants to try using one of those
anti-spam services
that filters mail before it gets to our box. The problem is that I
know spammy
will ignore the MX and try to deliver directly to our server even
after I switch
the MX. So my question is, how can I configure postfix to only accept
mail for
that one domain that only comes from the filter service and still
accept mail for
the other domains from anywhere?
So far I do not seem to be able to find the relevant doc.
Regards,
You could use a restriction class, like
main.cf
--------
smtpd_restriction_classes = must_come_from_XXX
must_come_from_spammy = check_client_access
cidr:/etc/postfix/XXX_addresses
Typo here! Of course it must be
smtpd_restriction_classes = must_come_from_XXX
must_come_from_XXX = check_client_access cidr:/etc/postfix/XXX_addresses
smtpd_recipient_restrictions =
<other restrictions>
check_recipient_access hash:/etc/postfix/XXX_domains
<other restrictions>
/etc/postfix/XXX_domains
------------------------------
mydomain.local must_come_from_XXX
/etc/postfix/XXX_addresses
----------------------------------
1.2.3.4 DUNNO
0.0.0.0/0 REJECT not from XXX
or use a policy daemon like postfwd with a rule like
recipient_domain=mydomain.local; \
client_address= !!(1.2.3.4); \
action=REJECT
