Case Study: CINC (Commissions Inc.) scales to millions of emails and improves deliverability with SendGrid

CINC Fully Leverages the Scale of the SendGrid Platform to Deliver Its Email

Commissions Inc., a real estate technology platform that connects brokers and agents to homebuyers and houses millions of MLS listings, needed to focus on building their product rather than managing email infrastructure. Early reliance on an in‑house Microsoft SMTP server left them without visibility into delivery and response metrics, so they required a scalable, cloud-based solution and deliverability expertise to support their personalized property-alert email program.

They integrated SendGrid quickly via APIs, gaining event webhooks, feedback loops and Subuser API capabilities for white‑labeled client accounts, which enabled proactive monitoring of bounces, blocks and spam reports (reduced to 0.07%). The switch scaled their email volume from 2,000 to millions per month, improved deliverability and response rates, and cut development time spent on email from 10% to 2% while providing ongoing deliverability support.

CINC - Commissions Inc.

Matthew Swanson

Chief Software Architect