[ILUG] Sendmail: Setting up a secondary MX

[Kenn Humborg]

> > In the default sendmail config, the corresponding file is called
> > "sendmail.cR" - look in your sendmail.cf file for a line like:
> > 
> > FR/etc/mail/sendmail.cR
> > 
> > (or any line beginning with "FR"), which should tell you where this
> > file is meant to live.
> 
> ... d'oh.
> 
> On recent sendmails, it's actually called "relay-domains", not
> "sendmail.cR" - look in /etc/mail for these files.  My sendmail config
> is so perverse these days that I've forgotten what the defaults were.
> Apologies for any confusion.

Or add 

   FEATURE(relay_based_on_MX)

to your sendmail.mc and rebuild the .cf.

Later,
Kenn