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Mailboxlayer

A simple REST-based JSON API for email address validation and verification.

What agents can do

Actions1

  • Check email

    Tool to validate a single email address.

How it connects

You paste an API key from Mailboxlayer on a page Composio hosts, so the key never passes through Definable.

Keep the connection to yourself or share it with your workspace. Any action that writes or sends can wait for your approval.