I'm in the process of purchasing/upgrading our secure email gateway. We're in an organisation of around 1,000 users.
We currently use Symantec messagelabs in the cloud for all incoming/outgoing emails. We also have Mimesweeper (very old) which sits on the network to 'filter out' any so called larger emails/missed out spam before delivering it all to our exchange.
So now, I'm about to upgrade as we had issues.
1. I don't know whether we really need another spam/filter as I would have thought Messagelabs should be able to handle it all. So we may not be using its full features.
2. If I did want to upgrade, it's between the Watchguard xcs 580 which is a hardware appliance or Clearswift's email gateway which is a virtual appliance. The cost difference is quite big; with the Clearswift being approximately 2,500 more.
Any input on what you would do or what you believe a firm of this size should ideally do?