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3drake
Email Gateway API
Middleware for Gmail / Outlook / SMTP

Send Emails Using Your Own Email Account – No SMTP Setup

3drake acts as a secure middleware between your app and Gmail, Outlook, or custom SMTP servers.

Get Started
API-first Per-user credentials Logs + audit trail
Quick Overview
What developers get out of the box
Email Gateway
Send API
POST /v1/send
One endpoint to route Gmail, Outlook, SMTP.
Credentials
POST /v1/connect
Store per-user provider config securely.
Logs
GET /v1/logs
Delivery status + error traces.
Security
API keys / RBAC
Token-based access, scoped permissions.
cURL example

Replace API_KEY and connection_id. 

curl -X POST https://3drake.com/v1/send \
  -H "Authorization: Bearer API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "connection_id": "conn_123",
    "to": ["user@example.com"],
    "subject": "Hello from 3drake",
    "text": "Email sent via your own provider!"
  }'
No SMTP configuration
Use user-owned accounts and provider-specific auth.
Logs & traceability
Every send attempt is recorded with status and errors.
Drop-in for internal tools
Ideal for SaaS, CRMs, workflows, notifications.

How it works

Connect a provider once, then send emails through one consistent API.

Step 1 Connect

Add a provider connection

Store Gmail, Outlook, or SMTP credentials as a per-user connection. Keep your app’s codebase provider-agnostic.

Example
POST /v1/connect
Step 2 Send

Call one send endpoint

Your app sends a message payload. 3drake routes it to the correct provider and handles provider quirks.

Example
POST /v1/send
Step 3 Observe

Track status & troubleshoot

Delivery logs help you debug fast: request payload, provider response, errors, and timestamps.

Example
GET /v1/logs

Supported providers

Standardize email sending across providers with one API and consistent responses.

Gmail
Send using user-owned Gmail credentials (ideal for internal tools & notifications).
Outlook
Support for Microsoft accounts in the same unified flow as Gmail and SMTP.
Custom SMTP
Any provider that supports SMTP: transactional, corporate mail servers, or legacy systems.
Provider capability matrix
Example capabilities for marketing, notifications, and internal email.
v1
Feature
Gmail
Outlook
SMTP
Unified send API
Per-user credentials
Message logs
Templates (optional)

*Capability matrix is illustrative for the landing page. Your implementation may vary.

Why 3drake

Built for teams that want reliable email sending without becoming email infrastructure experts.

Security

Keep credentials scoped per user, limit access via API keys, and reduce blast radius with isolation-friendly architecture.

  • Credential vault pattern
  • Least-privilege tokens
  • Audit-friendly traces
Logs

Centralized logs for requests and provider responses help you debug deliverability issues quickly.

  • Status + latency
  • Error codes & retries
  • Per-user filtering
Simple API

A small surface area that’s easy to integrate into SaaS products, CRMs, and internal workflows.

  • Consistent request/response
  • Provider-agnostic payloads
  • Designed for automation

Pricing

Simple plans for email infrastructure. You pay for secure routing, logs, and control — not deliverability.

No credit card required for Free
Free
For prototypes & hobby apps
Starter
$0
/ month
  • Up to 2 connections
  • 1,000 send requests / month
  • Logs retention: 7 days
  • Basic rate limits
  • Community support
Start Free

Ideal for testing your integration before going production.

Most popular
Pro
For production apps
$9
$9
/ month
  • Up to 10 connections
  • 100,000 send requests / month
  • Logs retention: 90 days
  • Higher rate limits + retries
  • Priority support (email)
Upgrade to Pro
Good fit for
SaaS notifications, CRMs, internal tools, multi-provider routing.
Team
For growing teams & workflows
$49
$49
/ month
  • Up to 50 connections
  • 1,000,000 send requests / month
  • Logs retention: 365 days
  • Team members + API key scopes
  • Advanced rate limits + export logs
Choose Team

Best for ops teams, CRM automation, and higher-volume internal messaging.

Enterprise
For compliance & dedicated infra
Custom
Let’s talk
  • Unlimited connections & custom limits
  • Dedicated workers / isolated tenants
  • SSO/SAML (optional), audit exports
  • Custom retention & compliance needs
  • SLA + priority engineering support
Contact Sales

Need on-prem, strict compliance, or custom routing policies? We can tailor it.

What you’re paying for

3drake is an email gateway API — secure credential handling, unified send endpoint, logs, rate limits, and operational controls.

  • Unified provider routing (Gmail/Outlook/SMTP)
  • Secure per-user credential vault pattern
  • Delivery logs + troubleshooting signals
Important note

3drake does not sell inbox placement or deliverability. Emails are sent using your users’ own providers. Limits are applied to protect the system from abuse and ensure reliable throughput.

Tip: If you want, add an “overage” model later (e.g., $x per extra 100k requests) to keep plans simple.

Get Started

This landing page is backend-free. Hook these buttons up to your onboarding later.

Tip

Start by connecting your first email provider, then send a test email to verify your setup.

Example payload

What your app might send to 3drake. 

{
  "connection_id": "conn_123",
  "from_name": "Acme App",
  "to": ["user@example.com"],
  "subject": "Welcome!",
  "html": "<h1>Hello</h1><p>Thanks for signing up.</p>",
  "text": "Hello — Thanks for signing up."
}

FAQ

Do I need to configure SMTP?

Not if your users connect Gmail/Outlook—3drake abstracts provider setup. For custom SMTP, you’ll still provide host/port credentials.

Is 3drake a marketing email platform?

It’s an email gateway API. You control what you send; 3drake focuses on routing, security, and observability.

Do you store email content?

Landing-page text only: you can choose to store minimal metadata for logs (status, timestamps, error codes). Content storage is optional by design.

Can I use it for internal tools?

Yes—internal notifications, admin workflows, CRMs, and ops tools are a great fit.