[Mimedefang] backup MX server & checking for valid users

[Jim McCullars]

On Wed, 14 May 2003, alan premselaar wrote:

> is there any way to configure sendmail and/or MD to do an SMTP user_exists
> type of check from the secondary MX server to the primary MX server? (making

   Check out the md_check_against_smtp_server function in the
mimedefang-filter man page.  I think that's what you're looking for.

Jim