Changing "unable to deliver mail" timeout setting

[KLGNT]

For example:
Currently if a user tries to send an e-mail to bob@smith.com, but they accidentally type bob@smith.cm, the mail server will dutifully try to connect to smith.cm for 7-10 days before returning an undeliverable error mail to the sender.
How do you change the timeout time on this setting. I'd like to make it about a day and a half or so.

Oh, and we're running 3.1.3

Thanks

[phoenix]

Search the forums for details on how to modify the maximal queue lifetime.

Oh and I'd suggest you upgrade to a more recent release of Zimbra.

[gimecoffee]

I understand what maximal_queue_lifetime does and will probably shorten it from 5 days to 2 days but is there a way to get Zimbra/Postfix to notify the sender after 30 or 60 minutes that there was a problem and that the server will keep trying for a 2 days. I know that servers go down or have problems but it would be nice for the sender to know there was an issue.

Thoughs?
Rois Cannon

[phoenix]

Search in bugzilla for "delay_warning_time".