Send high-performance transactional emails through your own
AWS SES, Postmark, or custom SMTP servers. Complete privacy,
zero markup.
Your SMTP credentials never leave our server unencrypted. We use industry-standard GCM encryption.
Connect unlimited sender profiles. Routing is handled via clean API keys for different environments.
A robust REST API that fits into any stack. Simple POST requests to queue and send your emails.
Join thousands of developers who trust Sendio for their transactional email needs.