Hi,
I'm trying to configure postfix v2.7.3 on fedora with the best options
for utilizing RBLs, including zen, and was trying to implement
rbl_reply_maps (as per the STRESS_README of all places):
1 /etc/postfix/main.cf:
2 smtpd_client_restrictions =
3 permit_mynetworks
4 reject_rbl_client zen.spamhaus.org=127.0.0.10
5 reject_rbl_client zen.spamhaus.org=127.0.0.11
6 reject_rbl_client zen.spamhaus.org
7
8 rbl_reply_maps = hash:/etc/postfix/rbl_reply_maps
9
10 /etc/postfix/rbl_reply_maps:
11 # With Postfix 2.3-2.5 use "421" to hang up connections.
12 zen.spamhaus.org=127.0.0.10 521 4.7.1 Service unavailable;
13 $rbl_class [$rbl_what] blocked using
14 $rbl_domain${rbl_reason?; $rbl_reason}
15
16 zen.spamhaus.org=127.0.0.11 521 4.7.1 Service unavailable;
17 $rbl_class [$rbl_what] blocked using
18 $rbl_domain${rbl_reason?; $rbl_reason}
More specifically, my rbl_reply_maps contains:
# With Postfix 2.3-2.5 use "421" to hang up connections.
zen.spamhaus.org=127.0.0.10 521 4.7.1 Service unavailable;
$rbl_class [$rbl_what] blocked using
$rbl_domain${rbl_reason?; $rbl_reason}
zen.spamhaus.org=127.0.0.11 521 4.7.1 Service unavailable;
$rbl_class [$rbl_what] blocked using
$rbl_domain${rbl_reason?; $rbl_reason}
When creating the rbl map, however, I receive the following:
[root@mail02t postfix]# postmap rbl_reply_maps
postmap: warning: rbl_reply_maps.db: duplicate entry: "$rbl_class"
postmap: warning: rbl_reply_maps.db: duplicate entry:
"$rbl_domain${rbl_reason?;"
What could I be doing wrong? Where can I find current (and
authoritative) information on UCE with the latest postfix? I've of
course found numerous references, but it seems there aren't any
documents in the last six or twelve months that explain how best to
configure RBLs and other antispam measures.
Thanks,
Alex
