Using Email This Issue requires users to log in. Anonymous users cannot access it and cannot use its features.
There two type of permissions in Email This Issue:
Send Manual Email Permission
By default the Email button is displayed for all logged in Jira users in all issues. However, sometimes it is necessary to restrict access to this feature to certain users.
The Permissions to Send Emails Manually page is accessible in the Administration tab of the configuration page.
If the All users may send emails option is enabled, all users may send emails. However, if the option is set off then Jira Administrators may grant permissions in the Jira Permission Schemes.
Send Issues in Email Permission
In this cases, the Permission schemes contain a permission type called Send Issues in Email that may be configured as a regular Jira Permission in the usual way. Users being granted this permission, wil be able to use the Email button and Email Screen. Unprivileged users may not access the Email screen.
Permission to Configure Email This Issue
To access the configuration screen and the Emails menu in Jira's top navigation bar, users must be Jira Administrators or Jira System Administrators.
Future versions of Email This Issue will declare a new Global Permission type so that Email This Issue configuration may be delegated to privileged users.