On Monday, March 18, 2024, Benny Pedersen via Postfix-users < postfix-users@postfix.org> wrote:
> Glenn Tenney via Postfix-users skrev den 2024-03-18 03:52: > > My question in one, hopefully simple sentence, is: >> >> In Postfix, how do I configure Postfix such that all email to >> "user@some.domain" will return an error code (e.g. 550 user unknown) >> to bounce that email???? >> > > Victor gave a vierd config :) > > postfix must not return any result on non existsing users, so if this > gives no result user is unknown, with in turn gives postfix user not found, > to keep things very simple mydestination must only have unix users where @ > is not auth without realm-domain, when this is in place you can in > virtual_alias_maps map remote mail recipient to system users mailbox, of > not all is virtual_domained > Thanks. I’m hosting several domains: a couple need to accept any user@ except some that specifically need to be rejected delivering locally; some domains are more normal, just accept specific users & deliver to some local user (sometimes using procmail to forward some or save some to files); and a few domains that will deliver to some-other domain (kinda relay). So only the first of these need to return a result (reject) specific users. Glenn
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