On Sun, Jul 07, 2013 at 09:16:50PM +0200, Pol Hallen wrote: > > Postfix has a delay_warning_time parameter. This warning is correctly > > sent at most once per message. > > thanks! how known if my message is real sent from my smtp server? Setting > delay_warning_time parameter to 5m (i.e.) I receive an email with info, > but I don't know if (and when) my message will send... how I've a notify > that my message in real sent?
A 5 minute delay warning is way too short, (shorter than many greylisting minimum retry times). This should be at least 1 hour. If you want delivery notification use DSN or MDN. -- Viktor.