> One thing I haven't set up yet is greylisting. It sounds very > effective, but I have some users that depend on being able to receive > an e-mail immediately (e.g. while they're on the phone with the > sender), and get quite annoyed when there's a significant delay. I > know, that's not how e-mail is supposed to work, but who am I to tell > them that? Still, I do want to do greylisting in certain cases; I > just haven't gotten around to setting it up yet.
Many greylisting implementations allow the application of it on a per-user basis, so the users who won't ever tolerate the delay aren't forced to suffer it. On the other hand, all greylisting implementations that I know of permit (and probably recommend) whitelisting, so you can eliminate many delays once you have some history. Personally, I think greylisting is very close to being a final solution for spam. While working around it is certainly not impossible, it makes sending spam just a little bit more expensive, and expense is really the only disincentive that's ever going to work, IMHO. Cheers, - Joel _______________________________________________ Imap-uw mailing list Imap-uw@u.washington.edu https://mailman1.u.washington.edu/mailman/listinfo/imap-uw