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Choose the right integration

Two separate paths: send website email or read an owner-authorized mailbox.

Editorial update: October 30, 2026
In this guide

Which service do you need?

NeedIntegrationAuthentication
Order confirmations, verification or password recovery for your siteWebsite-email HTTP APIProject key bound to a domain
Read a customer’s messages and attachmentsOAuth with mail.readOwner consent and access tokens

Current capabilities

  • A paid subscription is required. Website email also needs a ready custom domain and current sending quota.
  • The sending API accepts text and HTML; this version does not accept attachments or provide an SMTP gateway or delivery webhooks.
  • OAuth is read-only; it is not a substitute for a sending key, and sending keys cannot read a mailbox.
  • Your application generates and validates verification codes and reset links; Rasel Mail transports the message.

Before your first integration

Start with non-sensitive test content and keep secrets on your application server. These examples use example.com domains and illustrative identifiers. No real keys are embedded and no SDK is required; ordinary HTTP requests are sufficient.