script to take mail in the folders and send to another mail server?

[bnelson]

I'm wanting to use Zimbra as a backup mail server for our clients.
If the primary server is down, zimbra will store the email and deliver it when the primary server is back up.

I was told Zimbra has no way of sending the email it collected back to the primary server, so my question is does anyone know of a script that I can setup to run every X minutes to send email from the zimbra server to another domain?

for example:

Domain A:
john@domainA.com
Mary@domainA.com

Domain B:
Sue@domainB.com
Scott@domainB.com

The script will check Zimbra Domain A, if there is email, send it to mail.domainA.com
then it will check Zimbra domain B, if there is email sent it to mail.domainB.com

anyone know how to accomplish this?

[uxbod]

In your previous post you mentioned that your would like users to be able to login to Zimbra and send/receives email if the Exchange server was down. Are you asking now about store and forward ? Setting up a backup MX is trivial though if you are wanting people to actually use that server that is where things get tricky. As I mentioned before how will you synchronise the emails ? What if people delete them ? As far as I can see the best method would be to use IMAPsync when the primary node becomes available again.

[bnelson]

no, i still want users to be able to log into zimbra when the primary server is down.

[uxbod]

Exactly and that is the issue as I explained before ... You would probably require IMAPsync to transfer all the users messages across to Exchange. Why not set up a separate backup Exchange server ?

[bnelson]

I could setup Exchagne Server for CSR (continous site replication) however, Exchange Server only supports a single domain enviroment, therefor to act as a backup mail server for over 30 clients, i would have to have 30 exchange servers..which really isnt feasible.

I was told a while ago that Zimbra, along with some additional programming, could handle the function that I need.

Imapsync apparently is an option, i was just wanting to see what options other people are using as well.