Hi,
I'm using dbmail with sendmail over lmtp, and from what I can tell,
sendmail is effectively acting as a relay. It receives the mail into the
local queue, and then tries to deliver it over lmtp.
The problem with this is that sendmail will accept all mail restined for
the local domains, regardless of whether the users exist. The
undeliverables will the either backscatter or sit in the queue as
undeliverable until they eventually bounce into the local postmaster's
mailbox.
Is there a workaround for this? Is there a way to make the MTA
check that the recipient exists before accepting the mail?
Thanks.
Gordan
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