Hi, I'm wondering how it's possible to configure Exim as a Backup-MX
and Qmail as a
Primary-MX.
The background:
Primary-MX is running 08:00 pm - 17:30 pm
Secondary-MX is running 24 Hours.
Case of study:
if Primary-MX (Qmail) down or failure connection or not resolv etc..
All email direct to Secondary-MX (exim).
and when a Qmail running, all email from Exim will taked a pull to Qmail.
How to configure on qmail and exim a case of.
please help me, Thank you