On Wed, 3 Mar 2004, Scott Call wrote: > On Wed, 3 Mar 2004, Nathan Allen Stratton wrote: > > > Have you look at graylisting, temp failing mail with a sender/receiver/IP > > you have not seen before? > > I don't know what the prevailing attitude is, but it seems to me > that 451ing unknown senders is a good way to get on the bad side of > sysadmins who have to deal with the backlog until your server decides to > accept them.
Well every valid to/from/ip gets thrown in mysql any new message with that same to/from/ip would never be delayed again. Also I temp fail before the DATA phase so body is not sent twice and I only temp fail for 5 min. ><> Nathan Stratton CTO, Co-Founder nathan at robotics.net BroadVoice, Inc. http://www.robotics.net http://www.broadvoice.com