[Mailman-Users] [ext] Messages delivered out of order and delayed

Ralf Hildebrandt Ralf.Hildebrandt at charite.de
Tue Sep 17 04:03:07 EDT 2019

> I suspect that as soon as greylisting became common, they did.  On the
> other hand, if they retry after 5 minutes, they'd get caught again by
> every greylister I know (all 10 min or more).  So the question is how
> much do they back off?

Yep, Postfix has a exponential backup, but it won't be much more that
11 minute in total for the 3rd delivery.

Ralf Hildebrandt
Charité - Universitätsmedizin Berlin
Geschäftsbereich IT | Abteilung Netzwerk

Campus Benjamin Franklin (CBF)
Haus I | 1. OG | Raum 105
Hindenburgdamm 30 | D-12203 Berlin

Tel. +49 30 450 570 155
ralf.hildebrandt at charite.de

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