[Mimedefang] redundancy in mimedefang

[Lucas Albers]

Considering this situation:
Two installations of mimedefang configured as incoming mx servers for a
mail domain, configured to relay mail to some internal mail server.
M1 and M2 are their names.

Fault Tolerance:
M1 is down, then all mail is routed through M2.
Based on clients point to the next mail server on the mx record.
If M1 dies anything on the ramdisk spool is lost.
How to prevent this?
How to prevent any mail from every being lost, even if 1 of the cluster
dies?
Set up seperate mail spools? A disk spool and ramdisk spool?
Synchronize the ramdisk to disk?

Ramdisk is being used for performance requirements.


Bayes Database:
How to share the bayes database between the systems?

--Luke