Dear, on the system described on the subject, we have several problem with amavis. Basically, it's works pretty slow, in some cases. And we cannot figure out why this happen. We have another server (well, few different server) with different s.o. (basically centos) with the same configuration, almost the same mail traffic and same hardward spec that does not present that slowdown. As "slowdown" i mean, that in few cases happen that from the time that the mail come to the server, to the time that the system put her on the mailbox can spend more than 60-90 seconds. This is a big problem when happen pick of mail traffic. In fact, we have more that 100-200 mail on the queue when this happen. If we disable amavis (commenting content_filter = amavis:[127.0.0.1]:10024 and restarting postfix) all the queue, goes complete in few seconds. Mysql connection works, cpu load is small, there is no slow query on the mysql, bayes filter works, clamav works...so, my questione is: what could be the source of this slowdown? This problem drive my crazy...any hint? Thank you.