I was hoping that someone here could help us with an issue that were having.
My Exchange environment consists of 4 Local Exchange Servers. Exchange Servers A, B, C and D for ease of explanation. Currently we have Exchange server A set up as a Bridgehead connected to a Smarthost which is also local to the network that Exchange Servers A, B, C and D are on. We are trying to set up redundancy for mail routing should Server A go down. Presently, we have the 2nd Bridgehead server located "offsite"- lets call that Server E. We also have a 2nd smarthost to which Exchange Server E is connected to. The connection between sites is very Fast and reliable so there should be no "slow-link" issues here.
What i've done:
Created a second SMTP Connector identical to the 1st except that i have increased the cost on the 2nd connector to "2" and obviously added Server E in as the "Bridgehead" on this connector- per this article http://technet.microsoft.com/en-us/library/bb124455(EXCHG.65).aspx
With this set up as is- mail successfully flows through either connector (provided i adjust cost manually to effectively force it) but doesnt "fail-over" like we need it to.
To test this i have tried "freezing" the queue and physically disconnecting Server A from the LAN.
If i "freeze" the SMTP connector, rather than failing over the mail just queues. I have to manually adjust the cost on Server E to a lower cost than that of Server A to allow for mail-flow.
If i "disconnect" Server A from the LAN the mail queues on Server(s) B C and D regardless of the cost on Server E's routing connector.
the only other thing that i can see is that in the list of servers under the "Members" folder- Server A shows up as the Master and the rest of the servers show up as Members.
Hopefully one of you guys have seen this before and can help out!!