On Mon, May 18, 2015 at 02:20:08PM +0100, Craig Skinner wrote: Hi Craig,
yes, this should help, in the case that the sender tries longer than 4 hours. Are there any experiences, after how many hours/days the sender side (at the large ones like google, yahoo, hotmail, etc) gives up? thanks, Alex. > On 2015-05-18 Mon 09:26 AM |, Alex Greif wrote: > > > > I am using spamd on a current installation in greylisting mode, > > and have have problems with large sites that have several > > SMTP servers but no SPF ip-address ranges. > > Hi Alex, > > Bumping up the spamd(8) greyexp time to 2-4 days works well (on 5.6): > > spamd_flags='-G 25:48:864 ...' > > > Sometimes I have more than 10 mail server IPs in the greylisted > > in spamdb, from the same (friend) email address, and the the > > sender side finally/unfortunately gives up, so that I don't get > > the mail. > > > > greyexp is 4 hours by default. > > Unless the same sending server in the pool retries within greyexp hours, > it will not be whitelisted. > > Increasing it to 2+ days works for gmail, yahoo, hotmail, etc.... > > It is slow to start with, but once a host is whitelisted, it just works. > > Cheers.
