Critical emails

Protect the emails you can't afford to lose to spam

Password resets, billing alerts and receipts are the emails that cause real damage when they land in spam. Gaitle lets you attach reply-boosters to these critical sends so they keep their inbox placement.

A marketing email in spam is an annoyance. A password reset in spam is a lost user. A failed-payment notice in spam is churn you never saw coming. These transactional emails are the ones you can least afford to lose — and, because they're low-volume and one-way, they're often the first to slip when a domain's reputation dips.

Give the important emails their own boost

Gaitle lets you attach dedicated nudge variants to your critical flows rather than treating every send the same. The reputation you build from reply nudges protects the whole domain, and reinforcing your highest-stakes email types keeps them anchored in the inbox where they belong.

Built for the messages users depend on

Password and magic-link resets that have to arrive within seconds
Billing, dunning and failed-payment alerts that prevent silent churn
Security notifications and login alerts users are trained to trust
Order, subscription and renewal receipts

Keep these landing and you cut the most expensive support tickets you'll ever field — the ones that begin with "I never got the email."

Frequently asked

How does Gaitle protect critical transactional emails?+

Gaitle lets you define separate nudge variants for your most important email types — password resets, billing alerts, receipts. By keeping engagement high on the domain and reinforcing those specific flows, the emails users genuinely depend on hold their inbox placement instead of drifting into spam.

Which emails count as critical?+

Any send where a missed delivery costs you a user or a payment: password and login-link resets, billing and dunning notices, security alerts, and order or subscription receipts. These are exactly the messages that must reach the inbox, every time.

Try it free on your own domain

Every feature is included. Free for your first 100 users, live in five minutes.

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More features

Reply Health score

Reply rate, complaints and bounces in one 0–100 number.

Subject A/B testing

Test subject lines automatically; the best reply-getter wins.

Replies in your inbox

Every reply forwarded to you — just hit reply to answer.

Domain warm-up

Daily send caps ramp a new domain safely.

Complaint guardrails

One-click unsubscribe + live complaint tracking under 0.1%.