We've had an issue in which IIS had to be reinstalled. Upon unistallation the administrator removed RPC over HTTP and SMTP service.
We reinstalled IIS and the SMTP service, along with RPC over HTTP but had to modify the registry to register the exchange services with inetinfo, the regkey edited was:
The key is 'DispatchEntries' and it now looks like this:
LDAPSVC <--- Manually Entered
IMAP4SVC <--- Manually Entered
POP3SVC <--- Manually Entered
RESVC <--- Manually Entered
Now after restarting the exchange appeared to come back online without issue and seemed to be running fine. After a more close inspection it seems emails are not being delivered anywhere.
If I send a test message to myself, Outlook sends and shows the message in sent items but when I check the message tracking centre there is no trace of it. Also all normal emails coming in are bounced stating there recipient is unknown.
Desperate for information or help.