In this blog we will be learning how to start mail flow troubleshooting in Exchange Server 2010 with the help of EXTRA. It is difficult to understand the cause of the issue. EXTRA will help you diagnose the issue.
Before You Begin
It is mandatory that you should have thorough understanding on ports, smtp, firewall and other components involved in transport.
Lets Explore EXTRA
To open EXTRA from an Exchange Server 2010 server go to Start > Run > and type EXTRA
Figure 1.1 : EXTRA
Figure 1.2 : Welcome to EXTRA
Figure 1.3 : Task Selection Screen
Figure 1.4 : Symptoms
In figure 1.4 we have basic symptoms to select. Based on our selection the tool will help us to move further. It is always important to understand the symptoms else your troubleshooting might fail.
I have selected the last option for pending submission.
Figure 1.5 : Server and User Information
In figure 1.5 it is asking Please provide the name of a computer with the Mailbox server role installed where submitted messages are not being processed.
Figure 1.6 : Retrieving Information about Exchange Server
Figure 1.7 : Basic Server Information
In figure 1.7 it clearly says that the one or more required services are not started. Now lets move ahead and see what is the service name which is not started.
Figure 1.8 : Basic Server Information
Select the error message and you will see detailed description of which service is failed.
Figure 1.9 : Mailbox Server role Health Results
Figure 1.10 : Hub Transport Server Role Heath Results
Although we came to know which service is causing the issue, however it is a best practices to check the health of Mailbox and Transport server.
Figure 1.11 : Results
Figure 1.12 : Microsoft Exchange Transport service in stopped state
Go ahead and start the service. This service is dependent on AD Topology service. If you are unable to start the service then you can easily find the cause using Application Event Logs.
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