Deep dives into email infrastructure, SMTP optimization, and why Bring Your Own SMTP is the future. No marketing fluff, just engineering.
No newsletter spam — Just articles when we actually have something to say. Last updated Feb 2026.
Discover why developers are moving away from traditional email providers and embracing BYOS (Bring Your Own SMTP) for better control, lower costs, and no vendor lock-in.
Looking for a Resend alternative? Compare features, pricing, and flexibility. Learn why Void Relay offers the same developer experience with full SMTP control.
Learn how to implement email webhooks for delivery tracking, bounce handling, and real-time notifications. Step-by-step guide with code examples.
Master the art of high-volume email delivery with these proven SMTP API best practices. Optimize deliverability, handle errors, and scale your email infrastructure.
Everything you need to know about choosing a transactional email API. Compare providers, understand pricing models, and make the right choice for your application.
Why putting all your eggs in one SMTP basket is risky. Learn how to build a resilient email infrastructure with multiple providers and automatic failover.
We crunched the numbers. See how email providers markup their services and why BYOS can save you thousands.
Step-by-step guide to connecting your Gmail or Google Workspace account to Void Relay for sending transactional emails with your own infrastructure.
Tired of vendor lock-in and skyrocketing email costs, we built the email API we wished existed. Here is why we think Bring Your Own SMTP is the future.
Join our beta and get 5,000 emails per day per API key. No credit card required.