FYI, the default retry for sending for Exchange is 15 minutes. So if your greylisting is more than that, Exchange servers will try multiple times to send during your greylisting period.
Michael J. Colvin NorCal Internet Services www.norcalisp.com > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:spamdyke-users- > [EMAIL PROTECTED] On Behalf Of Sam Clippinger > Sent: Friday, September 05, 2008 10:27 AM > To: spamdyke users > Subject: Re: [spamdyke-users] senders getting a bounce back on greylisted > messages > > The sending server should only generate a warning if it's been delayed > too long. In this case, it's possible the Exchange server is attempting > delivery multiple times in rapid succession within the time limit set by > "graylist-min-secs", then _not_ attempting delivery after that. It > could be concluding that your server is down and will remain down for > some time, so it's warning the sender about it. I know Sendmail will do > this (by default) if it can't send the message within the first 12 hours. > > Your mail logs could probably reveal the pattern of Exchange's > redelivery attempts. You could then try lowering (or removing) your > "graylist-min-secs" setting to match. > > -- Sam Clippinger > > dnk wrote: > > Good day all, > > > > I have a quick question.... when a message is greylisted by a server, > > should the sending server issue a bounce back to the original sender? > > > > > > Spamdyke itself is obviously doing its job, but the issue I am having > > is that the non technical users are assuming the email never went > > through and hence I am getting an influx of support calls. > > > > I predominately notice that it is an issue when it is a MS Exchange > > server that is sending to my qmail server. > > > > > > Below is a sample of what the original sender sees.... > > > > > > From: [EMAIL PROTECTED] > > Date: September 3, 2008 6:52:00 PM PDT (CA) > > To: "User namel" <[EMAIL PROTECTED]> > > Subject: Delivery Delayed: Documents signing w/c Sept 29 > > > > > > Delivery is delayed to these recipients or = distribution lists: > > > > [EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]> > > > > [EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]> > > > > [EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]> > > > > etc, etc > > > > Subject: Documents signing w/c Sept 29 > > > > This message has not yet been delivered. Microsoft Exchange will = > > continue to try delivering the message on your behalf. > > > > Delivery of this message will be attempted until 9/8/2008 9:45:56 PM = > > (GMT) Greenwich Mean Time : Dublin, Edinburgh, Lisbon, London. > > Microsoft = Exchange will notify you if the message can't be delivered > > by that = time. > > > > ________________________________ > > Sent by Microsoft Exchange Server 2007 > > > > > > > > So if they actually read the message, they would see that the message > > is simply delayed. > > > > I am just curious how other people are dealing with this. I am > > assuming simply grin and bear it? > > > > > > > > Dustin > > > > > > > > > > _______________________________________________ > > spamdyke-users mailing list > > [email protected] > > http://www.spamdyke.org/mailman/listinfo/spamdyke-users > > > _______________________________________________ > spamdyke-users mailing list > [email protected] > http://www.spamdyke.org/mailman/listinfo/spamdyke-users _______________________________________________ spamdyke-users mailing list [email protected] http://www.spamdyke.org/mailman/listinfo/spamdyke-users
