On Wed, 9 Aug 2006 13:21:23 +0200, openbsd misc wrote: >Hello, > >I'm looking for a smtp proxy. The idea is, that the proxy checks the >smtp session (if everything is valid and forward the information to an >exchange-server). The forwards should happen step-by-step (the smtp >proxy should be able to drop to be able to deny the recipient). The mail >itself should be streamed (because the proxy should run in memory only). >Does someone know such a solution? > >Regards > Hagen Volpers > > That way lies madness.
Try the simple method: whack a copy of Postfix on an OpenBSD box in front of the sexchanger, let it reject invalid recipient mail, do spamd greylisting, whatever and pass the filtered few onto the dumbbox. There is a recipe in "The Book of Postfix" that needs a few fixups (scripts starting with #!/bin/bash etc) but the idea is solid. If the MS thing is on line there is really no significant message storage on the gateway but you get good logs. If MS is off-line your mail is queued for later delivery. No multiple MX DNS entries needed. Solid. R/ >From the land "down under": Australia. Do we look <umop apisdn> from up over? Do NOT CC me - I am subscribed to the list. Replies to the sender address will fail except from the list-server. Your IP address will also be greytrapped for 24 hours after any attempt. I am continually amazed by the people who run OpenBSD who don't take this advice. I always expected a smarter class. I guess not.
