On 19.08.09 17:36, Dave wrote: > Mail from my backup mx is not being scanned for spam as it's coming > in. Is this something i'd have to turn on at the MTA level, content filter, > or SA? A majority of stuff my backup mx sends me is spam and i'd like to get > it tagged as such.
simply do as much filtering as you can on the backup - smtp-level blacklists, SA, antivirus, helo checks, they were all mentioned last few days here. I would encourage you using DCC (either directly or through SA) and optionally delay delivering to primary MX if you can set it up (courier has such option, qmail doesn't afaik). While there is BadMX plugin that intended to get mail delivered through secondary MX when the primary MX is available (detects short delay between backup and primary), I wasn't able to get it working yet (only a few hits for forwarded mail). Delaying such mail for a while will help you against early recipient problem - the mail will be more easily catched if the checksum will appear in blacklists, checksum services etc... -- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. Save the whales. Collect the whole set.
