In early February 2020, some Comsense users began to experience problems when sending email directly from the Comsense software using Microsoft Outlook.

The symptom experienced is the Subject line from the email is appended to the recipient’s email address rather than landing where it belongs in the Subject field. The image below provides an example of this behavior.

The problem is caused by a change in the command-line argument handling in Microsoft Outlook for Office 365 Version 2001, which started to roll out in early February to the Monthly Update channel of Office 365. This change causes trouble for Comsense and many other third-party software providers who rely on these parameters to perform particular operations.


We have published an article in our Help Center that discusses this issue and provides a straight-forward resolution that can be applied to any particular users at your organization that experience the issue. View the article here (

We hope that you’ve found this information helpful!