Is there is a way to verify a host has an MX (i.m not too fussed
about MX's that point to RFC1918 addresses) without having to do a
callback on that host? I'd like to do an ACL that will reject any
host that has no MX records, with a differing message than the
callback verify routine. I cannot see a way to do this without doing
sommat silly like setting the callback timeout to be 1 second.
Also another question, I notice in the Changelog the entry 4.11/146:
"146. Added new ACLs for non-SMTP messages, SMTP connection, MAIL, and
STARTTLS."
How do you setup a non-SMTP acl? I've had a look at the docs (4.10-spec),
but can't seem to find a reference.
