SMTP relay
Drop-in SMTP replacement for existing applications. No code changes required.
SMTP features
Drop-in replacement
Replace your existing SMTP settings and start sending through emailr immediately.
TLS encryption
Secure connections with TLS 1.2+ encryption. Your emails are protected in transit.
Simple authentication
Use your API key as the password. No complex configuration required.
High throughput
Send thousands of emails per second with our optimized SMTP infrastructure.
Full tracking
Get the same delivery tracking and analytics as the REST API.
No code changes
Perfect for legacy applications, WordPress, or any system that supports SMTP.
SMTP credentials
Hostsmtp.emailr.dev
Port587 (TLS) or 465 (SSL)
Usernameemailr
PasswordYour API key
Ready to start sending?
Get your API key and send your first email in under 5 minutes. No credit card required.