Sendmail still default?

[Enrico Scholz]

Les Mikesell <lesmikesell at gmail.com> writes:

> One of my choices of tests on an inbound relay machine has been to
> check that the user exists using an smtp check against the internal
> delivery host.  How would I do that on an MTA that does not handle
> milters?

Milters are bad for rcpt verification (at least in sendmail) because they
happen before alias/virtusertable expansion. Custom 'Local_check_rcpt'
rules plus tables like

| Kdom0_lookup     hash -o /etc/mail/dom0-users
| Kdom1_lookup socket inet:480 at mail-filter

are better and easier to implement.


Enrico