I would like you to suggest me the right configuration of two SF servers (primary and backup) working with the same users and domains and redirecting to the same SMTP mailserver.

I'm considering this two options to get quarantine work correctly and SF efficiently:

1) Twice SF save the quarantine directly to the same MYSQL server installed in the primary SF server.

It would use the same db and i would have no problem in mixing DBs in the web based quarantine admin.
Do u think that it would get slowly the secondary server?

2) Every SF has his own MYSQL server in the same server of SF

It wuold increase performances of the secondary server but it wuold duplicate the quarantine DB so that i would have a double connection from the web interface to see and manage the quarantine.

3) The same as before, but with the difference that every X minutes a scheduled script cut & paste all the quarantine records of the secondary server to the primary so that the web admin could access to only one db

What do u think about it?

Do u have some other configurations to suggest?

Thank you very much!

Simone