Exchange Server is a very complex system when seen from the perspective of a Database Administrator, although the tool stands out in terms of security, email communication, and sharing. If the settings of the Exchange server are changed or are not properly configured during installation, users face errors and are unable to receive external emails. In this blog, we are going to figure out how to fix Exchange not receiving external emails issue. To avoid this error, it is first necessary to understand its causes.
Major Causes of Exchange Not Receiving External Emails are
- No network connection with the external network
- Force Reboot of Exchange Server
- Exchange Server was not properly closed previously
- Large and redundant applications are installed on the system
- A large number of applications are using Exchange Server at the same time
- The large size of the Exchange Server database file
- Corrupt or Damage Exchange Server
- Virus Attacks or malicious files
- Problems with system hardware
The error could be avoided if it were fixed at an early stage, on seeing the External Server’s behavior like
- Exchange Server lags or freezes while performing any action
- Delay in process execution, sending/ receiving emails
The database administrator can run the quick scan on the database to remove errors and fix minor issues so that the error does not occur. However, if you can send/ receive emails easily on the local network but not from the external network, then fix it by following the steps

Fix Exchange Server External Email Issue
- Go to the Start menu on your computer
- In the search bar, type services.msc and press enter
- A new window will open with all the services running
- Now look for the Microsoft Exchange Transport service
- When found, select and right-click on it
- Select the option Restart and close your system
- Restart the system and send an email to your Exchange account from an external account
- It will be received, and the problem will be fixed.
So, the Exchange server will function normally. You can also try Exchange repair software to fix errors in the EDB file and enjoy smooth email communication.
