On Wed, Mar 11, 2020 at 02:42:20PM +0000, Dominic Raferd wrote: > > > > delay_warning_time_suffix > > > > Expands into the value of the > > > > delay_warning_time parameter, expressed in the > > > > time unit specified by suffix, which is one of > > > > seconds, minutes, hours, days, or weeks. > > > > > > Thanks again. I add to main.cf: > > > # match text in delay message to the setting delay_warning_time = 15m > > > delay_warning_time_hours = 0.25
Floating point is not supported in this context. > OK thanks Wietse. But as I don't want to be bothered with a bespoke bounce > template (and the risk that it gets out-dated as/when the default template > changes) I seem to be limited to a minimum delay_warning_time of 1h. If you can't be bothered with updating the bounce template, then you probably shouldn't bother to customize the warning time to a different scale. And at least 1h is a good idea anyway; too short a warning time runs into too many false positives with greylisting... > Has anyone successfully set a delay_warning_time of less than 1 hour (or, > better, less than 30 minutes) without creating a bespoke bounce template? Obviously not, since floating point is not supported in bounce templates. -- Viktor.