Exit Code To Preserve Mail?

[bivaughn]

Hello,

I run a database that receives mail from Postfix for archiving purposes -- many thousands of messages per day. When I want to perform maintenance on my database, I would like to have a diversion script that just tells mail queued in postfix to hang back and wait a while to deliver without bouncing back to the originator.

Does anyone know of an exit code from sysexits.h that will make postfix behave this way?

Thanks,
Ben