Thomas, > > Content is scanned regardless of @local_domains_maps, > > it's just the adding of X-Spam-* header fields ... > > Sure. I also see this by a X-Virus-Scanned entry even for non $mydomain > entries: X-Virus-Scanned: by amavisd-new at virusscan20.ourdomain.com
There is always a choice of tweaking code a bit. > Thanks for this excellent explanation. The problem I face are all this > unknown domains from our users. As a larger ISP we usually assign IP > ranges to smaller ISPs or other customers. Some are PA ranges or from > our several /16 ranges. This means i have no clue what kind of domain > names they will host/use. > > But we provide for all this ip ranges a backup MX entry, based on this > ip ranges in postfix. Some of this users want to use our mail > environment for anti-spam protections. So they add our mailservers as > backup mx, deny traffic to port 25 on there own primary mx except for > our mail servers. > > The idea behind is, that every email goes trough our backup mx, will be > scaned and tagged and delivered to the primary mx which has no anti spam > solution. > > So there is no way out of the box to let amavisd-new add X-* tags to the > header based on backup MX IP ranges entries and not domain names? Actually, there may be a better way. You probably already have separate MTA for inbound mail (MX) and a different IP address for mail submission (port 587 and 25, SASL/TLS). Such separation is beneficial for DKIM signing decisions too. So probably from the mail route you already know if a message is on its way out or in. This double path can lead through amavisd in a form of two separate TCP port numbers, each loading its policy bank. The policy bank on a port where only incoming mail will flow can safely declare @local_domains_maps=(1); i.e. all recipient to be local. Mark Mark ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ AMaViS-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/amavis-user AMaViS-FAQ:http://www.amavis.org/amavis-faq.php3 AMaViS-HowTos:http://www.amavis.org/howto/
