Gilles Filippini wrote:
Andrew Hodgson a écrit le 18/04/2020 à 12:26 :
[...]
In my situation I noticed the directories weren't created very quickly as my Exim config looks for the list directories to identify whether that address exists. I don't know how Postfix does the aliasing but for my case it would make sense to get the directories created as soon as possible, not sure if the digest handler would be soon enough or not.
There is no need for these directories on the Exim side actually. You can safely drop the related checks from the Exim configuration [1].
Interesting, if you drop these checks does the mail get rejected at SMTP time or does Exim need to generate a bounce after it tries to deliver the message via LMTP?
What happens if the Mailman LMTP is unavailable at the point when the message comes in? In the current environment it gets queued, but that happens because Exim knows the list exists.
Reducing backscatter is quite a high priority for me as I get a lot of email to junk aliases at the lists domain which currently get rejected at the envelope stage.
Thanks. Andrew.