Mailgun Web Interface

Mailgun Configuration Enter your domain name, from address and API key in the input fields where indicated. Your domain must be configured and active. You can retrieve your API key as follows: Login to your mailgun.com account Select Settings Select API Keys Click the "View" button (the eye) for "Private API Key" These will be saved locally to your browser and will not be transmitted or stored except as used by the official mailgun module. To avoid accidentally updating the configuration, you can "Lock Configuration", and then Unlock Configuration only when necessary.

Screenshots from Chrome Web Store