Chris Santerre wrote: > > This isn't the best idea for a large ISP, but for companies I see no > problem > rejecting on RBLs when you have a trained administrator. >
I agree! Not that I use spamcop as a blacklist, maybe it's better now but I've seen them blocking mailservers from aol, hotmail and the like so I only give it a score in SA. But I'm very happy with the lists I do use for blocking in Postfix, it saves my mailservers a lot of work. Dynablock.njabl.org and dul.dnsbl.sorbs.net are used to block dynamic and dialup lines. I know there are also some non-dynamic addresses in those lists, but I don't mind as long as the providers mail-servers (like smtp.provider.com) are not blocked. In the last 4 years I only had to white-list 10 addresses. An other block-list I use is cbl.abuse.org, AFAIK there hasn't been one false positive yet. The last blocking lists are my own ones, during the years I collected spam-networks and ip-segments of countries (KR, CN etc) in a file with about 2000 ip-segments and domain-names (pool/broadband/dsl.provider.com etc). Also machines with viruses are put into this file. In the error message I typed the hint to use 'smtp.provider.com' if they want to send me some real mail. At the spamcop site 'statistics' page you can see the segments with the most spam, they match nicely with my maillogs. I know my server would be in big trouble if I wouldn't use these blocking methods, no way it would be able to keep up.. Regards Menno van Bennekom -- View this message in context: http://www.nabble.com/mail-bounce-warning-for-the-list-tf2586834.html#a7258640 Sent from the SpamAssassin - Users mailing list archive at Nabble.com.
