Complaint guardrails that keep you under the 0.1% line

There's a hard line in email that most founders don't learn about until they've crossed it: a spam-complaint rate of 0.1% — one complaint per thousand emails. Google and Yahoo's bulk-sender requirements make it explicit, and sustained rates above it get everything you send throttled, not just the message someone complained about. Gaitle is built to keep you well under it.

Give people an easier exit than "report spam"

When the only obvious way out of an email is the spam button, people use it. Gaitle adds standards-based one-click List-Unsubscribe headers, so recipients can opt out with a single tap right from Gmail or Apple Mail. That one change redirects would-be complaints into clean unsubscribes — which don't hurt your reputation.

Watch the rate before it becomes a problem

Complaint rate is also one of the three inputs to your Reply Health score, and Gaitle tracks it live. If it starts creeping toward the line you'll see it early — while it's still a small fix, not a throttled domain and a week of lost inbox placement.

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