Timeout for relay on primary MX

Hi all, i'm setting a server as secondary MX backup for my domain.com. My question is: how can I increase the timeout limit to hold messages in queue on secondary mx before they are deleted and they are not delivered on primary when it returns up? Thanks

Re: Timeout for relay on primary MX

* Bissio2000 bissio2...@yahoo.it: Hi all, i'm setting a server as secondary MX backup for my domain.com. My question is: how can I increase the timeout limit to hold messages in queue on secondary mx before they are deleted and they are not delivered on primary when it returns up?

R: Timeout for relay on primary MX

* Bissio2000 bissio2...@yahoo.it: Hi all, i'm setting a server as secondary MX backup for my domain.com. My question is: how can I increase the timeout limit to hold messages in queue on secondary mx before they are deleted and they are not delivered on primary when it returns up?