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Send emails programmatically with the HMAC Bridge | MailBridge

MailBridge

Send emails programmatically with the HMAC Bridge

Expose a minimal, signed API to compose/send from your workspace accounts.

Connection setup
Scopes & IP allowlists

Overview

Expose a minimal, signed API to compose/send from your workspace accounts.

Problem

Other apps need to send through your domain without exposing credentials or bypassing policies.

Solution

Grant scoped access and require timestamped HMAC signatures with IP allowlists; all calls are logged with latency and status.

How it works

Use actions accounts.suggest and compose.send. Rotate secrets; enforce replay windows, rate limits, and event hooks for sent/bounced.

Who is this for

Platform Engineer Developer

Expected outcomes

  • Central policy enforcement
  • No shared passwords across apps

Key metrics

Unauthorized attempts blocked

Baseline

95 %

Target

99.9 %

Gallery

Connection setup
Scopes & IP allowlists

Downloads & templates

Security impact

  • Message payloads; connection metadata/logs · PII: business email content

Compliance

  • GDPR
  • SOC2

Availability & next steps

Enterprise