Does CRM email router support digitally signed emails?

Hello There,

I have configured email router in a one of our test environment to check, i am able to trace incoming mails which has digital signed mails get tracked in CRM. 

Does CRM email router support digitally signed emails? 

i am not able to trace mails in to CRM,, have you ever faced this ???? kindly suggest i need this to figure this out.

Thanks,

Vinay Kumar.

Vinay Kumar.