Unable to receive invitation properly due to winmail.dat

[pbabu6001]

External user is unable to receive invitation emails properly from our Exchange user.

I have checked message tracking details and could see that winmail.dat attachment,

could you please let me know on how can I resolve this issue on IronPort end.

[Libin Varghese]

I currently do not see a workaround on the ESA as the winmail.dat attachment is added by the exchange server.

I did find an article online from Microsoft which provides steps to prevent winmail.dat from being added.

https://support.microsoft.com/en-us/help/138053/how-to-prevent-the-winmail.dat-file-from-being-sent-to-internet-users

- Libin V