Another delivery-retry policy for smarthosted domains?

[zeusdk]

Hi MailEnable

I have setup two servers that are MX-backup’s for each other using smarthost.

I would like to have another delivery-retry policy for them, so the servers will try more days to deliver the mail before giving up (that’s the whole idea in the MX-backup setup so we don’t loose mail in the case of a longer breakdown).

I don't like to expand the normal timeout limit on 30 hours because it would increase the load on the server too much... and for one reason.

Can I have another delivery-retry policy for the smarthosted domains (MX-backup)?