I think the default first retry is after a 4hr delay. Jon Galbreath, MCSE Systems Administrator International Studies and Programs Helpdesk: 517-884-2148 Ph: 517-884-2144 [log in to unmask]<mailto:[log in to unmask]> From: Laurence Bates [mailto:[log in to unmask]] Sent: Wednesday, January 11, 2012 2:04 PM To: [log in to unmask] Subject: [MSUNAG] MSU auto-forward email delay as a function of time that the email has been undeliverable I had to take down an email server last night for maintenance and had it back up by 6:00 AM but noticed that the auto-forwarded email from mail.msu.edu did not arrive until 9:00 AM. Evidently there must be a delay included in the email retry function, but for future reference, does anyone know what the delay is as a function of the time that the email has been undeliverable? Thanks... Laurence Bates