On Wed, 2008-03-26 at 12:24 -0430, Patrick O'Callaghan wrote: > On Wed, 2008-03-26 at 17:49 +0100, Patrick wrote: > > On Thu, 2008-03-27 at 00:58 +1030, Tim wrote: > > [snip] > > > > There's actually a way around it in a crunch...I've put a 5 minute > > > > window. > > > > > > That's really not a solution. While your server may say, come back in > > > 5, you don't have any control over how, when, or if, the sender will > > > actually retry. > > > > Afaik greylisting uses an RFC compliant method. So if the sending > > mailserver does not resend after a while then it is broken and should be > > fixed. FWIW I have used greylisting for more than a year now and in all > > that time I have only once seen a mailserver not resend. > > We regularly see Yahoo not resend for members of Yahoo Groups. My view > is that I don't care, but of course you can always whitelist it. ---- and all decent greylisting daemons I'm sure have a whitelisting mechanism for many known hosts as the one I use does. And of course, I add the local major Internet provider's SMTP servers to the white list. Craig
