one of the blacklist I use it is ix.dnsbl.manitu.net
to my knowledge, it has been OK since I've set it up, with no known
complaints
what is the user's opinions on it's usefulness ?
just in the last two days one user had several valid emails rejected based
on NiX Spam bl
by the time I looked at rejection listing, one of the IPs was no longer
listed
# pflogsumm /var/log/maillog* | grep block
..
blocked using ix.dnsbl.manitu.net (total: 485)
blocked using zen.spamhaus.org (total: 17487)
Mar 17 05:14:36 postfix/smtpd[30940]: NOQUEUE: reject: RCPT from
smtpout6.poczta.onet.pl[213.180.147.166]: 554 5.7.1 Service unavailable;
Client host [213.180.147.166] blocked using ix.dnsbl.manitu.net; Spam sent
to the mailhost relay.heise.de was detected by NiX Spam at Tue, 16 Mar
2010 12:36:26 +0100, see
http://www.dnsbl.manitu.net/lookup.php?value=213.180.147.166;
from=<xx...@poczta.onet.pl> to=<y...@domain.tld> proto=ESMTP
helo=<smtpout6.poczta.onet.pl>
--
Voytek
