On Tue, Oct 15, 2024 at 16:03:13 +0100, Paul Fowler via Postfix-users wrote:
> Are there best practices for avoid OS username enumeration on a mail relay?
Just set local_recipient_maps appropriately, without unix:passwd.byname if you
don't need it.
I set it to $alias_maps plus an inline:{} list of actual local mail recipients.
Geert
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