Your API requests are authenticated using API keys. Any request that doesn't include an API key will return an error.
You can generate an API key from your at any time.
Mailhub offers two types of authentication keys:
Production keys: These keys send emails as requested.
Development keys: When using a development key, HTTP requests will behave the same as in production, but the emails will not be sent to the recipients. Instead, they will only be available in your inbox.
