What is MailerSend
MailerSend is an email API and SMTP service focused on transactional messages. It handles invoices, password resets, and delivery notifications with strong inbox placement. Teams can integrate it quickly using documented APIs and pre-built templates.
Overview
MailerSend provides an email API and SMTP relay designed for transactional sending. Businesses use it to deliver invoices, account updates, and password reset links at scale. The platform supports multiple domains, custom templates, and inbound routing. Integration is straightforward with SDKs available for seven programming languages. It handles volumes from a few hundred to millions of emails per month. The service is not intended for bulk marketing campaigns or complex marketing automation workflows.
How to use MailerSend
Connect through the API or SMTP relay using one of the available SDKs. Configure your domains, set up templates, and start sending transactional emails from your application. Monitor delivery performance through the built-in analytics dashboard.
Key Features
- Email API and SMTP relay
- Multiple domain management
- Customizable email templates
- Inbound email routing
- SDKs for seven languages
- 24/7 customer support
- Email analytics dashboard
- SMS sending capability
- Email verification included
- 99.5% uptime SLA
Ideal Customer Profile
Startups, agencies, and small to mid-size businesses that need reliable transactional email delivery with simple integration.
Best for: Seed, SMB, Mid-market