With this extension you will be able to digitally sign your mails if you have a Digital Certificate(DSC) issued by a qualified Certifying Authority. You should also register the certificate in xorkee and obtained a xorkee handle (free). The handle should be enrolled in the xorkeesign service (a small subscription🙂).

Alternately, if you belong to an organization and if the organization attests your identity using theIDzone feature in xorkeesign you can sign your mails. You will still need to create and register a key in your mobile phone using the free xorkee app and pass on the xorkee handle to your organization. Once you are ready, you can try out your signature from here.

Phishers can compromise your mail login and send mails using your identity or a malware could collect the mail IDs in your address book and send mails to them in your name. This tends to happen because the current email logins are protected only by a password or other weak mechanism which are routinely broken. When you digitally sign a mail, neither a malware nor a phisher will be able to duplicate your signature.