MX Record Backup


NethServer Version: 7.5 (beta)
Module: Email

Is there a tutorial to configure an mx record to use for backup? If mx1.domain.ext is down mails go to mx2.domain.ext and then mx2 server send to mx1 when this one is online.
Is it possible?

Not recommended. See

Ok. But if my server is down I will lost emails?

Only if it’s down for more than about a week.


Oh, ok.
Thanks a lot!

It depends on how many times/days the sender’s server is configured to try to resend emails that have not yet been delivered.

Nethserver, by standard, tries for 4 days
HMailserver can be configured to tries every tot minutes for tot times.
My Old Exchange 2003 tries for 2 days

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