On 2010-09-28 6:43 PM, Noel Jones wrote: > You can also consider setting delay_warning_time to a non-zero value, 4h > is probably reasonable, so the user will be notified when their mail > isn't delivered in a timely manner. > http://www.postfix.org/postconf.5.html#delay_warning_time
SMTP is reliable enough these days that if my users - who deal with a lot of time-sensitive issues - send an email that isn't delivered almost immediately, I want them to know there is a problem, so I have mine set to 15 minutes for years now and it works great. Admittedly our server is not very heavily loaded, and this obviously wouldn't be practical in all cases (ie ISPs), but for small/medium businesses that run their own smtp servers, since most users *do* consider email to be virtually an 'instant' method of communication, I think it makes sense to let them know early on if it wasn't delivered immediately. One thing I'd like is the ability to have more than one warning... say an 'early warning like 1o or 15 minutes, then one (or more) secondary warnings (maybe 4 hours, then 24 hours)... -- Best regards, Charles
