Currently we are hosting Spam Filter ISP on 2 servers within our office, with a single MS SQL server hosting the quarantine database.  We are happy with the filter, but are looking for a bit more in the way of redundancy.  The plan is to move one of the servers to an off-site data center.  Can we expect problems caused by a slower, less reliable connection between one of the spam servers and the SQL server?  I did find this thread

http://www.logsat.com/SpamFilter/Forums/forum_posts.asp?TID=6770&title=quarantine-folder

which seems to indicate that quarantine messages are cached so that a break in the connection will not cause permanent damage.  Is anyone else hosting multiple spam servers in separate locations, and if so, what sort of issues should we be anticipating?  Thanks

Thanks for the reply yapadu!  That does sound encouraging.  

Please forgive the noobish question but I'm not a DBA and we use MS SQL in any case, but: if you're using master/slave replication, doesn't that mean you can only write to the database at one physical location?  So if the link between the data centers fails, one site will be unable to write to quarantine?  Or does mysql allow table-level replication so you can replicate settings but both sites maintain separate quarantines?  Thanks, for the input though!