How To Fix Internal Mail Relay Processing Error?

Usually, an internal mail relay processing error has occurred while sending a message from the sender’s server to the receiver’s server. Sometimes this error is related to bounce mails. This error might also occur if the sender’s message is not authenticated or the receiver’s server is misconfigured. In most cases, the relay errors are displayed with a three-digit code, and they are somehow related to the SMTP errors. As a result of this error message, the SMTP server will stop sending the email message to the receiver. The error SMTP unable to relay is displayed as a three-digit error code, for example, 550 5.7.1. Each digit indicates each action.If you face the relay processing error in the Exchange server, perform the troubleshooting instructions given below to solve it.

Step 1: On your computer, initialize the Exchange Server Manager service.

Step 2: Click the Administrative Groups tab.

Step 3: Now, the list of groups configured on the Exchange Server manager will appear on the screen.

Step 4: Select the Administrative Group Name option, followed by Server.

Step 5: From the list of servers, select your server name.

Step 6: After selecting your server name, click the Protocols tab.

Step 7: Select the SMTP option to resolve internal mail relay Processing error.

Step 8: Locate the Default SMTP Virtual Server option and right-click on it.

Step 9: Choose the Properties option from the menu list.

Step 10: On the Properties dialog box, click the Access tab.

Step 11: Select the Relay to select only the list below option.

Step 12: The list of IP addresses and domains available for the Exchange Server will be displayed below.

Step 13: From the list, select the IP and domain you wish to relay.

Step 14: After that, locate the Allow all computers which successfully authenticate to relay regardless of the list above option and tick the checkbox beside it.

Step 15: Wait for the on-screen process to complete.

Step 16: Once it is done, the SMTP server will initiate to send the email message.

Step 17: If the internal mail relay Processing error remains unresolved, contact us.