Email This Issue has some pages under the Manage Addons page in Jira, included in the left hand side navigation bar.
Integrity Check
The Integrity Check page allows JIRA Jira administrators to check if the Email This Issue Addon User is properly configured for the seamless emailing experience.
Support and Feedback
As a licensed user of Email This Issue, you are entitled for our full support, you can also leave feedback on Email This Issue at the Atlassian Marketplace.