On a RedHat derivitive (CentOS 5.2) linux email server, I'd like users to be able to set an "Out of Office" auto-reply.
User will enable and disable the "out of office" service by themselves, either by sending an email to a certain account or through other mean.
It must be simple to use for users.
Some of the features I'm looking for "Out of Office" auto-replies:
ideally, only send the notification to a given sender once over the period of absence.
doesn't send notification to mailing lists.
must be server based and not require the user to have their mail client open (I know that Thunderbird can be configured to do that, but it's not a practical solution for us).
ideally, allow the user to set their own message (we have users speaking different languages, some will be able to check their emails while they are away, other won't, so I'd like to give them the choice).
Thanks for any help.