• To activate the unlimited version of Mailtester Ninja, simply paste your access key (including the curly brackets {}) anywhere in the form above.
• To validate email addresses, just enter any kind of text or list in the Email Verifier form — as long as it contains email addresses, they will be automatically extracted and deduplicated, regardless of format.
• To find an email address, enter one full name followed by the domain on each line in the Email Finder form (e.g., John Doe example.com) to search for the corresponding contact’s email.

You can mix and match formats or content — the system is flexible and intelligent enough to detect and process what matters.