I'm waiting for Greylisting too. Vernon's DCC stuff is being debugged for Greylisting which should soon be a reliable engine for this. I use Postfix as my MTA, so I'm waiting for an integration that happens at MTA handshake. So far, I haven't seen anything. Some said that there is a Postfix upgrade that will allow better integration there, but I'm not following the Postfix list that close. Too much volume.
<<Dan>> | -----Original Message----- | From: Bob Apthorpe [mailto:[EMAIL PROTECTED] | Sent: Tuesday, January 13, 2004 11:27 AM | To: SATalk list | Subject: Re: [SAtalk] SA Performance ....... | | Hi, | | On Tue, 13 Jan 2004, Jeff Koch wrote: | | > We run SA 2.55, qmail-mail scanner (with F-Secure) and | vpopmail on a | > 2.4Ghz | > P4 Dell Server with 1GB RAM and 120GB 10K ATA drive. Last week the | > server virus/spam filtered and popped 423,325 messages. During the | > last 2.5 days the server's handled 376,168 messages. The machine is | > smoken - looks like spam really picked up this week - the | load average | > is running between 15.0 and 20.0 and CPU is almost 100% utilized. | > We'll be off-loading virus scanning to another server which should | > allow us to double or triple the throughput with SA. We've disabled | > some of the RBL's, DC and Pyzor - don't use Bayes either. But | > everyone's happy - we capture 97% of the spam. Law of diminishing | > returns - reducing the remaining spam by 50% would require | double the equipment and personnel resources. | | A couple questions: Do you reject connections at the MTA | level with DNSBLs? What fraction of the mail you accept is | spam? If you're still seeing a substantial amount of spam | leaking past the DNSBLs, you might consider greylisting (aka | "tempfailing"; see | http://projects.puremagic.com/greylisting/) with something | like http://www.openfusion.com.au/labs/dist/denysoft_greylist | (a plugin for Qpsmtpd, a perl based replacement for qmail-smtpd.) | | I'm not very familiar with qmail; does it still | accept-then-bounce rather than | reject-during-SMTP-conversation? If you could convince it to | do the latter (esp. rejecting before the DATA phase) you | could save yourself some bandwidth and processing power and | extend the life of your current mail system. | | hth, | | -- Bob | | | ------------------------------------------------------- | This SF.net email is sponsored by: Perforce Software. | Perforce is the Fast Software Configuration Management System | offering advanced branching capabilities and atomic changes | on 50+ platforms. | Free Eval! http://www.perforce.com/perforce/loadprog.html | _______________________________________________ | Spamassassin-talk mailing list | [EMAIL PROTECTED] | https://lists.sourceforge.net/lists/listinfo/spamassassin-talk | ------------------------------------------------------- This SF.net email is sponsored by: Perforce Software. Perforce is the Fast Software Configuration Management System offering advanced branching capabilities and atomic changes on 50+ platforms. Free Eval! http://www.perforce.com/perforce/loadprog.html _______________________________________________ Spamassassin-talk mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/spamassassin-talk
