Store and Forward email

[paulkoan]

Hello,

Is it possible to configure cpanel/whm to be a store and forward email service for a domain. Ie the domain is hosted for web, but the MX is pointed to a different server.

Then the cpanel server is a secondary MX and will accept emails if the real email server goes down, and then forward the emails on to the primary when it returns.

I am aware that smtp will queue and retry inherently btw, but I want the cpanel server to accept the email without considering it delivered.

Thanks,

Paul