Landshark Information Technology

Microsoft Office error "can't open the mail session. Check your mail application to make sure that it's working properly"

This is an issue with Microsoft Update 1607 and affects both Office 2013 and 2016. Office programs are not able to 

Solution: Roll back latest Office updates.

Office 2016:

1. Open elevated command prompt. Click windows button, type cmd, right click, run as administrator.

2. Type "cd %programfiles%\Common Files\Microsoft Shared\ClickToRun" to change the file directory

3. Type "officec2rclient.exe /update user updatetoversion=16.0.8528.2147" where "8528.2147" is the version we are rolling back to.

 8528.2147 refers to Microsoft update 1709.

The following link lists all Office updates and descriptions.





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