As a recipient of a Jira issue notification email, I would like to reply to the email to add a comment to the Jira issue.  This should be have like typical service desk applications where ou can have an open Jira ticket and any of the recipients of the 

So for example, I see someone comment on a ticket that I"m a watcher on. I want to add some info to contribute to the discussion.  I should be able to reply to the email notification and have that comment added to the ticket.