EWS automatic signature misplaced

[luizdl]

EWS automatic signature fails to identify mail separator, and then puts the signature on the end of the e-mail, or just after the signature of the person I'm replying.

I can avoid this inserting several underscore at the end of my message, for exemple _______________________________________. Doing this, EWS identify it as the mail separator. But when using Outlook our Outlook Web, it puts a different separator that is also correctly identitied by EWS, I'm not sure if its a HTML tag, or a class or anything else.