Web Hosting Talk : Web Hosting Main Forums : VPS Hosting : mail server redundancy

[hzzg6y]

I have my own mail server on a VPS ( 1 GB ) using Cpanel ( Exim MTA )( ns1.example.com ) I want to make it more redundant. In the
sense, as email is key service, if it goes down for whatever reason, all your website is at stake.

I have one more VPS sever ( 512 GB ) with Cpanel ( Exim MTA ) which is used for Development activities ( NS2.example.com )


All my domain ( example : www.investorstreet.com ) has this two named DNS servers to bring redundancy.
I similarly want to bring redundancy in mail service as well. In the sense,If one mail server goes down,
other should provide the support. Please can some help me to do so.

Both servers are on VPS optimized CPanel.

[Kurikami]

If I understand correctly you set you MX records with priorities, if one server is unreachable it should try to send mail to the second priority server and so on. Try to researched about that.

Personal 2 cents, just use google apps if you don't need more then 50 accounts per domain.

[RandomLittleHost]

On top of that you need to make the secondary mail server understand it's a secondary, so that when the primary mail server comes back up mail is sent from the secondary to the primary where it will be picked up by the recipient