On Wed, 2006-05-24 at 12:19 -0600, Lonnie Olson wrote: > On May 23, 2006, at 8:06 PM, Michael Torrie wrote: > > > I need to configure Sendmail such that it only accepts mail for local > > users (local to the box that it is running on), deals with aliases, > > and > > then forwards all mail to another server. Currently it is working > > with > > the "MAIL_HUB" directive, but that happily accepts all mail, even for > > non-existent users, and sends it to the hub where bad mail is then > > bounced. This is a problem, though, as spam won't have a legitimate > > from address and thus the bounce will just hang in the queue and > > otherwise cause issues. I'd rather the connecting server just be told > > the user is invalid and cut it off (saves bandwidth). > > While this is quite hacktastic, it would do what you are describing. > It will also enable you to do even more complex filtering as well. > > http://www.technoids.org/procmailfilter.html
Yeah it is quite a hack. Useful, though. In my case it isn't desirable as it requires all e-mail to be accepted before it can be filtered. I can already do that with my current config. I've found a cool little project at http://www.bmsi.com/python/milter.html that allows building slick python milters with just a few lines of code. I think I could hack together a simple script to check incoming "rcpt to:" lines and ask the inside mail server if they are valid. Michael > > --lonnie > > /* > PLUG: http://plug.org, #utah on irc.freenode.net > Unsubscribe: http://plug.org/mailman/options/plug > Don't fear the penguin. > */ /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
