Anti-Spam
I must acknowledge that the best anti-spam tool is Spamhaus (not SpamAssassin). They maintain a blacklist of spamming and rogue IP addresses. The listing and delisting are done promptly in a very professional manner. The listing decision and spam proofs are available on their website. If an IP address is blacklisted by Spamhaus, you can be 100% sure that it is spamming (voluntarily or unvoluntarily). Spamhaus can block 90% of the spam without any content check. I trust the Barracuda firewall to do the rest of the job.
Eddy Young said,
December 20, 2007 @ 4:12 am
Do you have the Barracuda on your personal servers?
I find Mail.app, coupled with SpamAssassin, to do a decent job. However, it would be better to have a solution that blocks the spam on the server instead of just marking them as such.
— Eddy
Stéphane Lee said,
January 1, 2008 @ 1:58 pm
I use the Barracuda at work. I almost have no spam to delete
Shailesh said,
February 27, 2008 @ 5:46 am
Spamhaus is good. I used to have it hooked with GFI MailEssentials while i was still in Mauritius and the level of SPAM and rogue IP detection were very impressive. Now i work with Mimecast and i don’t think there is better solution than that at the moment, though i was very tempted to use the service of Google together with Postini but company policies do not allow us to use US servers!