We have migrate Exchange 2010 SP3 to 2013 CU6
Ex email server name was mail and the newer one's name is posta
when we shut down ex mail server some outlook's return limited connection error , all clients connectiong exchange from outlook via ip address not with domain names and also we are using an email gateway this is why our mx records different then it is so we are redirecting emails to ip address directly from the mail gateway but sometimes it logs some errors like this
Some computers getting smtp errors (smtp connector was created on ex 2010 but what does matters 2013 see connector ? )
when we open back ex 2010 server every thing returns to normal so so. hw that should be possible this are the results of diag :
PS C:\Users\administrator.> dcdiag
Directory Server Diagnosis
Performing initial setup:
Trying to find home server...
***Error: posta is not a Directory Server. Must specify /s:<Directory Server> or /n:<Naming Context> or nothing to
use the local machine.
ERROR: Could not find home server.
PS C:\Users\administrator.> repadmin /showrepl
Repadmin: running command /showrepl against full DC ad.xxxx.com
DSA Options: IS_GC
Site Options: (none)
DSA object GUID: dab63121-51f8-48ee-aa92-29ff9bcebf17
DSA invocationID: dab63121-51f8-48ee-aa92-29ff9bcebf17