Microsoft Exchange Troubleshooting: How to test the MAPI connectivity of user mail box?

Applies to

Microsoft Exchange Online

MAPI : Messaging Application Programming Interface

Question: Hey, can you get MAPI error and status of end user mail box?

Answer: Yes, we can use PowerShell and Outlook Client

Solution 1: Using Outlook Client

1. Right Click on MS outlook in System Tray
2. Hold Right Click and click on MS Outlook
3. Choose Connection Statusù

Solution 2: PowerShell

#Connect to Exchange Online Import-Module MSOnline $O365Cred = Get-Credential $O365Session =  New-PSSession ´ –ConfigurationName Microsoft.Exchange ´ -ConnectionUri https://ps.outlook.com/powershell ´   -Credential $O365Cred ´ -Authentication Basic ´ -AllowRedirection ´ Import-PSSession $O365Session Connect-MsolService –Credential $O365Cred  #Command to test connectivity Test-MAPIConnectivity -Identity "NTName" | Select -Property *