On Wed, Sep 16, 2020 at 04:39:12PM -0600, Bob Proulx wrote:
> What's the best configuration for a web server that does not receive
> mail but needs to send mail?
Send via a smarthost relay. Use a valid envelope sender domain that
will receive (and, as appropriate, take note of) bounces. Use a
valid "From" domain, but perhaps a "noreply" localpart.
For the header RFC2822.From localpart, you have a choice of either
silently discarding or rejecting mail to that address. It is perhaps
more "friendly" to users who fail to notice the "noreply" localpart
to reject.
transport:
nore...@example.org error:5.1.1 This address does not receive email
nom...@example.org discard:silently
The "nomail" variant is for silent discards, and is probably not what
you want in most cases, but is sometimes appropriate.
--
Viktor.
