Exchange Server manages incoming/outgoing communication of your organization. If there is a single issue in any functional aspect of the Exchange server, then it will affect the email communication badly. It will also negatively impact the business process. The email flow can get disrupted due to multiple factors because the Exchange Server environment is a complex arrangement of different components like a database, JET Server Engine, etc.

The disrupting factors can be a firewall, anti-virus, network router, misconfigured connection, ports, transfer agents, Active Directory services, etc.

Troubleshoot the Exchange Server

Before starting to troubleshoot the mail flow issue in your Exchange Server, you should first check for the cause of the problem. When you find out the reason, then it will become quite easy for you to solve the problem. Consider these points while searching for the reason behind the mail flow issue –

  • Check how many user accounts are affected by the issue.
  • Find the common thing with the user accounts which are facing the issues.
  • Check what type of user accounts are facing the issue.
  • Check when did the problem start with the user account.
  • Check for any possible error message during the mail flow.

After taking all the considerations, the Exchange Administrator can start troubleshooting the mail flow issue.

Check the free space available in the database

Get-MailboxDatabase -Status | select Name, DatabaseSize, AvailableNewMailboxSpace

Check the free space

The command will present the available space in the database. Now, you can manage the database space accordingly.

Check for the stopped Exchange Server services

The errors in incoming and outgoing emails in the Exchange mailbox may be due to the inactivity of some Exchange services. You can run a command and check the inactive services.

Get-Service | Where-Object {$_.Name -Like ‘MSExchange*’ -and $_.Status -eq ‘Stopped’}

The list will contain all the services which have stopped working. You can start the Exchange service to fix the issue.

Create a new send connector

The Send connector handles the outgoing emails from your Exchange Server. You can create a new connector for the SMTP mails and solve the emails issue.

Here is the process –

1. Login to Exchange Admin Center using the Administrator credentials and go to the mail flow option. Here go to the last option of send connectors and click the Add (+) button.

Login to Exchange Admin Center

2. Provide a new name to the connector and select its type.

Create a send connector

3. Choose amongst the network settings of MX Record associated with recipient domain or Route mail through smart hosts. Then click Next.

New send connector

4. Click the Add button, then select the SMTP network. To choose the domain name, you can insert a ‘*’. It means that it supports all the domains for the SMTP. After that, click the Next button to go ahead.

Click the Add button, then select the SMTP network

5. In the last step, select the source server from which you want to send the email messages. You can click the Add (+) button and select the server.

Select the source server

Finally, click the Finish button to finalize the changes.

These are the troubleshooting options which you can apply to fix the mail flow issue. However, these troubleshooting methods may not fight the corruption off from Exchange or recover the corrupt or deleted items. You can use some manual methods like ESEUTIL tool to repair the database, but many experts do not consider ESEUTIL as a safe option because the hard recovery from ESEUTIL may delete the data. That is why you should use a professional third-party application to recover the data.

Kernel for Exchange Server Recovery

Kernel for Exchange Server removes any corruption from dismounted Exchange database and presents you the recovered data. You can choose to save the retrieved data in the multiple destinations like Outlook PST file, Exchange, Office 365, Public Folder, and Outlook Profile.