On 19. Aug 2011, at 15:56 Uhr, Ralf Hildebrandt wrote: > * Ray Davis <ray-li...@carpe.net>: >> On 19. Aug 2011, at 15:09 Uhr, Ralf Hildebrandt wrote: >> >>> * Ray Davis <ray-li...@carpe.net>: >>> >>>> What would cause valid email addresses to be unknown periodically? >>>> They are valid before and after the following log entries and nothing >>>> on the server was changed. >>> >>> Is postmap run on the virtual_alias_maps from time to time? >> >> Yes - The Mac OS X user admin GUI does this whenever users are added or >> changed. > > Do the times coincide with the rejections?
I thought about that, but there were no changes made on the 16th (when my log messages occurred). Also, the problem occurs at random times or even multiple times in the same hour or two, so I don't expect it to be a periodic system level update. -R