Email API Overview

Cakemail's Email API enables you to integrate email sending into your applications. Whether you prefer REST endpoints or standard SMTP, both methods provide industry-leading deliverability through Cakemail's infrastructure.

Why Use Cakemail's Email API?

Industry-leading deliverability with managed reputation and expert guidance
Two integration methods — REST API for full control, SMTP for existing applications
Real-time analytics for delivery performance and engagement tracking
Canadian data storage — your data stays in Canada
Scalable infrastructure that grows with your needs

Choosing Your Integration Method

REST API

Direct HTTP calls for maximum control and flexibility.

Best for:

Applications that need programmatic control
Custom integrations requiring full API features
Modern web applications and microservices
Systems requiring detailed delivery status tracking

Sending Emails via REST API →

SMTP

Standard email protocol that works with existing SMTP clients.

Best for:

Legacy applications already using SMTP
Quick migrations from other email providers
Applications with established SMTP libraries
Minimal code changes to existing systems

Sending Emails via SMTP →

Prerequisites

Before sending emails with either method, you'll need:

Active Email API Subscription — Email API pricing
Cakemail Account — username and password for authentication
Verified Sender — registered, verified, and authenticated with SPF/DKIM
List ID — required for contact management and compliance

Pricing

35,000 free monthly email credits to get started
$50/month for the first 100,000 emails
Volume pricing decreases as you scale

Learn more about pricing →

Email API vs Campaigns

	Email API	Campaigns
Use case	Transactional (1:1)	Marketing (1:many)
Triggered by	Your application	Schedule or manual
Recipients	Single email address	Contact list
Personalization	Per-request content	Merge tags
Tracking	Per-email logs	Campaign reports