To have Postini hold your incoming email while you are performing maintenance on your mail server :
It's probably best to leave automatic spooling enabled most of the time, but to manually enable spooling while you are doing server upgrades.
The reasoning behind this is that you don't want Postini to try and deliver email to you while you server is up but possibly misconfigured resulting in bounced or lost email.
- Click on Inbound Servers
- Click on Spool Mgr
- Click on Edit
It's probably best to leave automatic spooling enabled most of the time, but to manually enable spooling while you are doing server upgrades.
The reasoning behind this is that you don't want Postini to try and deliver email to you while you server is up but possibly misconfigured resulting in bounced or lost email.