SMTP Relay

Connect to our SMTP relay and send emails
 from your own app or platform. It’s fast, reliable,
 and ready to scale with your business.

View demo Start for free

Some info to describe a product visual. Send emails via your favorite platform or software with ease. No complicated setup—just smooth delivery.

Reliable email delivery, simplified

Send transactional or marketing emails with
 SMTP relay. Get top inbox placement and
 real-time support from experts.

Boost email delivery

Send emails effortlessly through your own app or platform. Plug in and start sending in minutes. It’s that simple.

Enjoy peace of mind

With Inboxroad you’re always backed by email experts. Get expert assistance, anytime and at any step.

Eyes on the prize

Enjoy 24/7 support and monitoring of your sendings. Reach us anytime through Whatsapp, phone or email.

Get emails delivered

Reach the inbox instead of the spam folder. Our customers send 120 million emails a week. 96.1% hits the inbox.

The easiest way to send

Plug in with SMTP and send right away— no code, no hassle. Just connect and deliver at scale.

Easy to connect

Just configure your email client with our SMTP credentials. Start sending in no time. We handle the rest.

Send at scale

Built for volume. Whether you’re sending 100 or 100 million, our servers are ready. Scalable from day one.

Deliver with confidence

Our infrastructure is built for reliability. Enjoy high uptime, fast delivery speeds, and inbox rates you can count on.

Stay in control

Track your performance with weekly reports.
 Use custom IPs and let us help you warm them
 up properly.

Your sending, optimized

Use our SMTP relay to reach inboxes.
 Customize, scale, and track with full
 control over your sending strategy.

  • Custom IPs
  • IP warm-up service
  • Weekly insights
  • Deliverability consulting
View demo Start for free

Send reliably via SMTP

Forward messages through Inboxroad’s SMTP relay for fast, secure delivery.

  • Trusted intermediary with smart routing and encryption
  • Supports ports 587, 465, 25 with TLS/SSL authentication
  • Avoids spam filters with expert deliverability monitoring
View demo Start for free

Seamless SMTP setup

Connect any client or platform—just configure and go.

  • Easy integration with any SMTP-capable tool
  • No coding needed—plug in credentials and start sending
  • 24/7 expert support to ensure smooth setup
View demo Start for free

“The SMTP relay is incredibly reliable—

  • setup took minutes and we saw
     deliverability improve immediately.”
Jonas De Groot Email Operations, Webkings