On 09/19/2009 09:13 AM, Jose Luis Marin Perez wrote: > > For more than 10000 emails a day how much memory should be the server? > as one can calculate the amount of memory needed? >
10,000 a day means you are running a "real" mail server (ie not just for your home), as such you really need a "real" server. I'm surprised you're not swapping to hell. What does the system "feel" like? What does top say? What does the spamd syslogs say? I'd think you'd be having all sorts of issues - which would impact how well spamd operates. BTW, my questions are rhetorical. I mean you need to do "SysAdmin-y" type things to ensure the solution you have in place is operating correctly - there is no "one answer" that anyone can give you that works for everyone. Read man pages, etc. > > > > > > > SpamAssassin 3.2.5 - local.cf > > > > > > ok_locales all > > > skip_rbl_checks 1 > > > > You *disabled* DNS BL checks. Enabling them should drastically improve > > results. You'd likely want a local, caching nameserver. > > In qmail-smtpd rblsmtpd option is used, is equivalent to DNS BL checks > of SpamAssassin? > Running rblsmtpd doesn't mean you get to disable skip_rbl_checks - unless you have rblsmtpd set to use *all* RBLs that Spamassassin uses! Re-enable it. In fact I went the other way: got rid of rblsmtpd and simply increased the SA scores for the RBLs that I used to use under rblsmtpd. Make sure you're running a local caching nameserver too (eg dnscache), and you edit /etc/resolv.conf to use it (I know, that's obvious, but I've come across many systems like that!) > > Indeed this value was set to 5.0, but there were many SPAM emails so I > decided to lower it to 3.0, which do you recommend? > Leave it at 5. That number isn't plucked out of the air. The SA developers arrange their scoring system so that 5.0 is the tipping point (based on their database (corpus) of spam and ham). Your disabling of RBL is probably the major cause of your issues. At 10,000 per day you should be seeing 90%+ email is spam -- Cheers Jason Haar Information Security Manager, Trimble Navigation Ltd. Phone: +64 3 9635 377 Fax: +64 3 9635 417 PGP Fingerprint: 7A2E 0407 C9A6 CAF6 2B9F 8422 C063 5EBB FE1D 66D1
