I run 33 startups solo, and almost every one of them runs on email. From 4-digit one-time codes for user auth, to onboarding flows on datafa.st, to alerting buyers on trustmrr.com the moment a new listing goes live.
What I love about Resend is how fast it gets out of my way. The dashboard is genuinely friendly, and I can spin up all the email infrastructure for a new product in about 5 minutes. When you're shipping as many products as I do, that compounding time savings is everything.
More recently, I started using the receiving feature to handle customer support. Replies to welcome emails come straight back to me without bolting on a separate support tool. It's quietly become one of my favorite parts of the workflow.
Across all of these products, I've never had a single issue. It just works.
Resend is the email backbone of my SaaS.