Hi all,
My environment there are two sites, Internet Facing-Site and No Internet Facing-Site.
The mail flow between them, it isn't working. The messages stuck in the queue.
Default Receive Connector No internet facing-site is configured, bellow:
Defaul....
- Transport layer....
-Basic Authentication...
- Exchange Server Authentication.
- Integrated windows....Configuration the Internet Facing-Site, bellow:
From intenet
- Transport layer....
-Basic Authentication...
- Integrated windows....
And i configured a new receive connector on the Internet Facing-Site, follow bellow:
Sites
- Transport layer....
-Basic Authentication...
- Exchange Server Authentication.
- Integrated windows....But, the messages yet stay stuck in the queue.
Queue error:
451 4.4.0 Primary target IP address responded with: “421 4.2.1 Unable to connect.” Attempted failover to alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all alternate hosts.
I'm needing help, pls.