OAuth is an authorization standard that lets an application access your account on another service without knowing your password. You say "yes" once, on the service's own page; the application receives an access token limited to what you accepted. The version in use today is OAuth 2.0.
How OAuth works
- The application asks for access and sends you to the service's sign-in page, for example Mailpro.
- You sign in with that service, then a consent page shows who is asking for access and which rights: read contacts, send emails, send SMS…
- If you accept, the application receives a short-lived access token that it presents to the API on each call. It never sees your password.
- You can withdraw access at any time: the token becomes useless.
Why it matters for email marketing
- A CRM, an online shop or an AI assistant can connect to your email marketing account without you sharing your credentials.
- Each application has its own rights, and you can cut one off without touching the others.
- It is how AI assistants connect to an MCP server: sign in, accept, done.
OAuth at Mailpro
- AI assistants connect to the Mailpro MCP server with OAuth: sign in with your Mailpro account, a consent page listing the rights, no key to copy.
- For your own integrations, you can create several API keys, one per application or provider, each with its own rights, and remove them one by one.
Mailpro and integrations: connect your tools and AI assistants to Mailpro while keeping control of every access. Start for free