Michael Katz wrote:
There are many filtering Postfix AV solutions that are far more efficient than Amavisd and many AV scanners that are considerably more scalable than clamav such. A few years ago we did some detailed testing between ClamAV and commercial av scanners and the difference was huge in terms of load reduction and throughput. In our tests we have found that the biggest performance limitation in Postfix for AV/AS scanning, assuming you have removed bottlenecks that amavisd and clamav introduce, is from having to copy messages out of the queue to scan. Some commercial email platforms allow for scanning in memory rather than requiring copying files and these platforms , in our test, far outscale Postfix for filtering over a 100 messages/second.
Maybe You can list some of the best alternatives on commercial side for postfix mailscanning?
-- Eero
