Transactional Email API and SMTP Services for Reliable Communication

Inboos delivers transactional emails with speed, precision, and guaranteed inbox placement. Whether you’re sending OTPs, password resets, order confirmations, or system alerts, our infrastructure ensures your messages arrive instantly—every time. Built for developers, marketers, and platforms that demand reliability, our Transactional Email API and SMTP services are engineered for scale, compliance, and performance.

Why Inboos?

• Real-time delivery for mission-critical emails
• Secure SMTP relay with SPF, DKIM, and DMARC authentication
• Dedicated IPs and IP rotation for inbox-first deliverability
• GDPR-compliant infrastructure for global communication
• Developer-friendly API with full documentation and sandbox testing
• Scalable architecture for startups, SaaS platforms, and enterprises
• 24/7 support and onboarding assistance

Use Inboos for:

• Password reset emails
• OTP and verification codes
• Order and shipping confirmations
• Payment receipts and invoices
• System alerts and notifications
• Account creation and onboarding flows

Built for Every Stack

Performance You Can Trust

Ready to Send Smarter?

Choose Inboos for transactional email delivery that’s fast, secure, and built to scale. Whether you prefer API integration or SMTP relay, we’ve got the infrastructure to keep your communication reliable.