Exchange Cluster, Front-End Back-End, SMPT Gateway
I am rebuilding our Exchange structure. We are going from a mix of 2000 and 2003 Exchange servers in a distributed environment to a single location in a CyberCenter. We currently have 9 Exchange servers (single servers) in different locations. We have 3 SMTP Gateways running Trend Interscan Messaging & Security Suite (IMSS). The IMSS servers don't do any spam filtering. They are for outbound disclaimers and some content filtering, like blocking Internal Use Only emails. Our MX records point to MX Logic. They spam filter and then deliver directly to our IMSS servers. We have Trend ScanMail on exchange servers for virus. We have about 1000 users.
9 Exchange Servers (2000 and 2003)
3 SMTP Gateways (IMSS)
MX Logic Spam filtering for inbound mail, deliver directly to our IMSS servers
Exchange 2003 Cluster Back-end (2 active, 1 passive)
Exchange 2003 Front-End (2 servers, OWA and RPC/HTTP)
Antigen on the Cluster for virus
GFI MailEssentials for disclaimers and content filtering (not sure on this one)
I really don’t like the IMSS SMTP Gateway. I want to eliminate them if feasible. I also don’t like ScanMail. I would prefer Antigen. I’m not sure that we need SMTP Gateways at all. We don’t allow email from the Internet to hit our servers directly. It is all coming from MX Logic. I think we may be better off delivering directly to and from the Exchange Cluster. The mail tracking with IMSS is terrible. I would rather do it with Exchange, unless there’s something better out there. My current thought is Antigen on the Cluster for virus and GFI MailEssentials on the Cluster for disclaimers and outbound content filtering.
Any thoughts or suggestions?