What is this: Checker is a tool to verify possible email addresses which can be used during SSL activation.
Why do you need it: Checks which email addresses can be used to verify your domain ownership during certificate activation by verifying their MX records.
What you get: Provides a list of generic email addresses for a hostname (email@example.com, firstname.lastname@example.org, email@example.com, firstname.lastname@example.org, email@example.com) and email address listed for the domain in Whois (if any) and their current working status. List from your provider might be slightly different depending on their settings.
Key words: approval email, approver email, dcv