Multiple Inbound Servers

[tomj-tpi]

For redundancy, we have two mail servers on different internet connections.  Is there a way to make the appliance do the following:

1. deliver to primary server if available
2. if primary server not available, deliver to secondary server
3. if primary and secondary not available, hold the mail in a queue until one of them comes available.

Note: I am new to the platform - we had not actually deployed it yet.  We are moving from another platform in the next few weeks.

Thanks.

[ccieexpert]

i assume you are using CES and your email servers are on the inside of your network and they are mapped to two internet circuits... ???

anyway for inbound - you can set priority and have multiple routes

https://somoit.net/ironport/sender-based-smtp-routes/

yes it will stay queued generally for 72 hours...

**Please mark as helpful if this was indeed helpful **

[tomj-tpi]

Thanks, this is indeed useful.  It looks like it will do what we need. 

Out config is a bit more complicated.  We have a primary mail server, and a secondary mail server at a different location that only holds mail when the primary is not available.  That lets us have inbound and outbound email if the primary mail server is not available.