> We use courier mail server for a long time now but we miss one thing in > our current setup and this is a spam filter on SMTP level (so that spam > mails get instantly rejected instead of deleted or bounced).
Following the Unix principle, do one thing do it well, I decided to put a full featured mail filtering gateway on top of my top clients' courier installations and let courier doing MTA only. I installed a VM with http://www.mailcleaner.org/ and pointed all MX records to it. Any email coming in is filtered (spamassassin, clamav, dkim, dmarc, spf, grey listing, dnsbl, content filtering, TLS, razor, pyzor, dcc ...) before reaching my courier mta installations. Then, I configured courier to deliver any outgoing email to mailcleaner to do outgoing filtering and DKIM signing. To do this, put a single line like this on etc/esmtproutes: : [192.168.0.62],25/SECURITY=NONE 192.168.0.62 is the private IP address of mailcleaner host. I'm heaving the very best results with this architecture, and I also have great flexibility, web configuration and some graphs as well!! -- Dino Ciuffetti Linux System Administrator and IT Architect TuxWeb S.r.l. - http://www.tuxweb.it/ ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! http://pubads.g.doubleclick.net/ gampad/clk?id=1444514301&iu=/ca-pub-7940484522588532 _______________________________________________ courier-users mailing list courier-users@lists.sourceforge.net Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users