1) Other than hosting multiple domains, what other reasons are there to run more than one Virtual SMTP server?
2) This is the bigger question - A client recently acquired another *small* business with its own domain. Their solution was to add the acquired domain under Recipient Policies in the Exchange System Manager and then add those few new users in A/D - and it worked well for them. But why shouldn't they have set up a new Virtual SMTP server for the new company? I'm trying to understand the difference between running multiple SMTP servers and just plugging multiple domains into Recipient Policies.
Thanks for any help you can offer.