How do you go about adding a e-mail security appliance in terms of configuring e-mail routing?
If you have Exchange 2010 and a product like Symantec Messagign Gateway, Barracuda or Proofpoint, do you configure the security appliances to get e-mail first? If so, how? Is that updating your MX record to point to those devices?
Then from those devices, you tell them to point to Exchange 2010 server? What if you have multiple Exchange 2010 servers/databases (no dag)?