Case Study: Nextdoor achieves 99% delivery and doubles email volume with SendGrid

Doubling Email Volume With 99% Delivery How Nextdoor is Leveraging SendGrid

Nextdoor is a private social network that connects neighbors and local agencies to share urgent, neighborhood-level information. As the platform rapidly grew to tens of thousands of communities, its email volume outpaced member growth and their in‑house and small-provider solutions led to delays, duplicate sends, outages, and a heavy engineering burden to keep notifications reliable.

Nextdoor moved its email infrastructure to SendGrid for scalable delivery and expert support, which yielded deliverability consistently above 99%, a 95% reduction in delivery latency, and the ability to handle millions more messages as their customer base and email volume doubled. The switch also improved open and click rates, reduced spam complaints, and cut required engineering resources from four full‑time engineers to fewer than one.

Nextdoor

Alex Karweit

Head of Growth Engineering