Obtaining the Message ID to troubleshoot the mail serverIssue If an email is listed in the Sent mailbox, but was not received, there may be an issue with the mail server. This article will show how to obtain the Message ID so you can include it in an incident or similar communication.ResolutionTo obtain the Message ID: Navigate to System Mailboxes > Outbound > SentThe list of all email messages that have been processed appears.Open the record of the email that was not received.Right-click the form header and select Personalize > Form Layout.Add Message ID to the Selected column and click Save.The Message ID field appears on the form. If you are using a ServiceNow mail server, open an case and add the Message ID in your description. If you are using a different mail server, send the Message ID to the administrator of the mail system. Video Tutorial ServiceNow video tutorials are a great way to help find solutions. These video tutorials guide you, step-by-step, to a solution and provide common troubleshooting methods. This tutorial covers common issues, their causes, and the required steps to resolve them.