On Fr, 26.11.2004, 03:34, Stephen Frost wrote: > * Adrian 'Dagurashibanipal' von Bidder ([EMAIL PROTECTED]) wrote: >> <plug> >> And, of course, postgrey as the very first line of defense. >> </plug> >> Coupled with the usual checking on HELO (blocking 'localhost' HELOs and >> my >> own IP does wonders!), SMTP protocol conformance (pipelining), sender >> (envelope) address checking. > > Things which increase the load on the remote mail servers are *bad*. > That would include responding with temporary errors unnecessairly and > adding unnecessary delays in communication. pipelining by itself isn't > necessairly terrible- adding things like 2 minute delays is bad though.
What about greylisting depending on results of e.g. SA? Only above a limit of scores from SA greylisting would be become active. Christian -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]