Exchange 2010 Outbound mail delivery & redundancy
Posted on 2012-09-15
This question is a bit vague I realize. I’m wondering what the rules are for ensuring outbound mail delivering is redundant when deploying Exchange 2010 across two Active Directory sites?
I assume the following is true for a single domain with one Active Directory site:
Deploy two Hub Transport servers and create one send connector. If one Hub Transport server is unavailable, the other will automatically pick up mail delivery. Please let me know if I am off base here.
But for two AD sites, would you actually need two Hub Transport servers in each site and a separate send connector for each site? Assuming the goal was to protect outbound mail delivery against a single server failure. Or would implementing an Edge Transport server in this situation reduce the server count and deliver the same redundancy?
Each site would have its own direct access to the internet and a site to site VPN separate from that for communication between each site.
Thanks for clearing this up.