Hi all, I am looking to upgrade my spam/virus filtering environment - our current postfix/amavisd-new platform leaves something to be desired.
In a Postfix -> Amavisd -> Postfix environment the spam/virus filtering is extremely effective. However the Amavisd process can only scale so far. When the performance limit is reached / or if there is an excessive delivery of email the Amavisd process is overwhelmed and mail is accepted and queued in the external Postfix instance. I've seen cases where we have over 40k messages build up before anyone can notice. I am looking for a high performance spam/virus proxy that can sit as the external part of this chain and accept the message from external sources. This way if the system is overwhelmed it will reject the message and the remote host will deliver to the next mx record listed. So my question is this: On a dual Xeon server with 2GB of ram how many messages/second can the Apache-Qpsmtpd environment handle? I understand that this will be dependant on the speed of external hosts when using RBL/SURBL, etc... but what should I expect? Thanks in advance, Max -- Max Clark http://www.clarksys.com
