Email Infrastructure For High-volume Senders

Build vs Buy: Get managed email infrastructure without building in-house

Enterprise-grade infrastructure • Dedicated support • Custom setup

SuperSend email infrastructure

Trusted by research firms, investment banks, and large SaaS platforms

SIS International
Large Investment Bank
Large Growth Fund Agency
20M+
emails/month per customer
Zero
mailbox warmup required
API-First
outbound infrastructure

Managed Email Infrastructure Without Building In-House

Build vs Buy: Get Managed Email Infrastructure

Should you build your own outbound email infrastructure? We handle SMTP, IPs, domain pools, warmup, routing, and monitoring. All managed for you. Avoid the cost and complexity of building in-house.

Email Deliverability Monitoring Built-In

Get email deliverability monitoring, domain protection, and placement tracking in one platform. Validation and inbox placement tests use your plan's global credits (1 per validation, 5 per placement seed) — built into the sequencer, not a separate subscription.

Designed for 1M+ Non-Transactional Emails/Month

Built for organizations sending millions of emails/month. Our email infrastructure handles the scale and complexity that building in-house would require significant engineering resources.

Customer Testimonials

"SuperSend handles our entire survey outreach infrastructure. We send 20 million non-transactional survey emails per month, and SuperSend's deliverability infrastructure ensures they actually land in inboxes. We tried SendGrid and Mailgun; they banned us. SuperSend is built for this scale."
SIS International
Large Research Firm20M+ emails/month
"

"We needed infrastructure that could handle high-volume outbound without risking our primary domain. SuperSend's managed infrastructure (SMTP, IPs, domain pools, warmup) all handled for us. No engineering team required."

Large Investment Bank
Investment Bank600K+ emails/month
"

"As a cold outbound agency, we send 20 million emails per month across multiple clients. SuperSend's infrastructure scales with us. The deliverability monitoring and domain protection are critical; we can't afford to burn domains."

Large Growth Fund Agency
Cold Outbound Agency20M+ emails/month
Trusted by research firms, investment banks, and large SaaS platforms

Get Enterprise Email Infrastructure Built for Scale

Built for organizations sending 1M+ emails/month. Infrastructure designed for high-volume outbound. Warm-up, rotation, domain protection, and deliverability monitoring. All managed for you.

Enterprise-grade infrastructure • Dedicated support • Custom infrastructure plan