Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

When some of my contacts send mails, I see "signed by gmail" in the headers. In my mail client (Mail.app) I can see that it is a Verisign certificate. Is there a way to get a certificate from Google (as the "signed by gmail" mention suggests) or do I have to buy one at Verisign?

share|improve this question

Most probably (for GMail with gmail.com sender) you see sign of attached to message DKIM-signature of sending domain (as your text assumes). Something like this

enter image description here

But this is not personal cetificate or user, it's certificate of sending domain, which confirm: this mail really was send by this domain's server. If you'll send you mail over server, which support DKIM, your message will have this badge in recipient's eyes

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.