SMTPGrid is built for SaaS companies, ESPs, agencies, marketing teams, and enterprises sending high-volume emails. It intelligently routes traffic based on ISP, provider performance, and custom rules to improve deliverability and sender reputation. Features include automatic failover, mailbox warm-up, dedicated IPs, suppression management, bounce handling, webhooks, IP whitelisting, and real-time analytics.
We built SMTPGrid to solve a common challenge for high-volume email teams: keeping email delivery reliable as they scale. We wanted to make email routing, failover, IP management, and deliverability easier to manage without complex integrations. The idea evolved into a flexible infrastructure that helps teams stay resilient, improve deliverability, and keep their email operations running smoothly.