On 09.10.2023 at 08:24 Robert Mueller via mailop wrote: >> I see that current setup might be useful in case some user changes MX >> before the domain is activated at Fastmail, in which case giving 4xx >> could make sense. But it is not right to report such re-tries to >> sender score as attempts to deliver to non-existing users.
> Sorry Kirill, I don't have a really good answer right now, though I would say > that "emails would be kept in the queue for a month" is probably actively > working against you here. There's no reason an email should be queued for > that long. 24 hours seems a high upper bound these days and is the postfix > default. It's better that it actually bounce sooner to let the sender know > that something went wrong rather than trying for a month and the user not > knowing that their email is in limbo somewhere. Postfix default of the maximum queue lifetime is 5 days: https://www.postfix.org/postconf.5.html#maximal_queue_lifetime One month is very long, but I usually see systems to retry for at least three days to cover outages of MTAs that cannot be solved within a few hours or for example happen on a weekend. Not all MTAs are run by enterprises with 24/7 staff availability. -- BR Oliver ________________________________ dmTECH GmbH Am dm-Platz 1, 76227 Karlsruhe * Postfach 10 02 34, 76232 Karlsruhe Telefon 0721 5592-2500 Telefax 0721 5592-2777 [email protected]<mailto:[email protected]> * www.dmTECH.de<http://www.dmtech.de> GmbH: Sitz Karlsruhe, Registergericht Mannheim, HRB 104927 Geschäftsführer: Christoph Werner, Martin Dallmeier, Roman Melcher ________________________________ Datenschutzrechtliche Informationen Wenn Sie mit uns in Kontakt treten, beispielsweise wenn Sie an unser ServiceCenter Fragen haben, bei uns einkaufen oder unser dialogicum in Karlsruhe besuchen, mit uns in einer geschäftlichen Verbindung stehen oder sich bei uns bewerben, verarbeiten wir personenbezogene Daten. Informationen unter anderem zu den konkreten Datenverarbeitungen, Löschfristen, Ihren Rechten sowie die Kontaktdaten unserer Datenschutzbeauftragten finden Sie hier<https://www.dm.de/datenschutzerklaerung-kommunikation-mit-externen-493832>. _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
