API KEYS
Your own inboxes, with a free key
A key gives your account an inbox prefix. Inboxes under it can be read only with your key, and mail to them isn't counted toward the limit for senders without a key (5 different inboxes a day). Free, no card.
We keep your GitHub username, user ID and primary email address, plus a one-way hash of your key and its last four characters — never the key itself or your GitHub token. You can delete your account here at any time. See the Privacy Policy.