> Q) With spamassassin (and all the above info) you need about 20 to 30 > seconds per email message and LOTS of RAM and CPU: > a) TRUE > b) FALSE My answer is b), False. I have a mailserver here that has a 1Ghz CPU and 512MB RAM and SA on that server usually takes 2 or 3 seconds per message. Like already posted, some of your rulesets are unnecessary because they are included in SA (standard rulesets or SURBL). Did you check 'cat messages | spamassassin -D' to see what part takes most time? DNS time-outs can take a lot of time for example (also checkable with tcpdump port 53). Also your SMTP-server (xmail?) takes a lot of cpu. I've never used Xmail but I use postfix (and amavisd-new) and I think it's quite memory and CPU efficient.
Menno van Bennekom