[CentOS] resend undelivable mail?

Tue Jul 8 00:54:39 UTC 2008
nate <centos at linuxpowered.net>

chloe K wrote:
> Hi all
>
> how can I resend the undeliverable from 5 days to 3 days?

What MTA are you using ? You can only do this if your sending from
a server you control. You can't change this setting for your
yahoo account for example.

Postfix? Sendmail? Exim ? Qmail? other?

nate