SecureSMTP for SaaS

Password resets, invites, and trial nudges that actually arrive.

For a SaaS product, a bounced password reset is a churned user. SecureSMTP delivers your account emails with the same reliability enterprise providers charge $500/mo for — starting free.

Common use cases

Password resets

The single most-important email your product sends. Deliver-verified, DKIM-signed, one-click retryable.

Email verification

Signup confirmation that lands in the primary inbox — not promotions, not spam. Higher activation rate.

Trial nudges

Day 3, day 7, day 13 trial reminders. Time-sensitive, has to arrive same-day.

Billing receipts

Invoice + receipt emails your finance team can archive without VLOOKUP-ing.

Why saas teams pick SecureSMTP

Password-reset delivery

99.8%

measured across 100k+ resets per month in production

Webhook events

Real-time

delivered, opened, bounced, complained

API latency

< 150ms

95th percentile send API

Works with the tools you already use

Native integrations across the stack.

NextAuthClerkAuth0Supabase AuthFirebase AuthRails DeviseDjango authCustom Node / Python / Ruby SDKs

FAQ

Can I replace SendGrid / Mailgun for our SaaS product?+

Yes. Our send API is REST, returns a message ID, and fires webhook events for delivered/opened/bounced/complained. Swap out your provider’s SDK for our POST, keep the rest of your stack the same.

What about high-volume password reset spikes?+

The Starter and Pro plans handle burst traffic. If you regularly exceed 100k emails/month, talk to us — we’ll pool your quota to smooth spikes.

Do you support multiple sending domains?+

Yes on Pro and Scale plans. Common pattern: one domain for marketing emails, another for transactional — better deliverability and reputation isolation.

Is there an SDK for my language?+

The send endpoint is standard REST + JSON. Community SDKs exist for Node, Python, Ruby, Go, PHP. If you want a first-party SDK for your language, tell us — we prioritize based on demand.

Related reading

Ship account emails your users actually receive.

Free tier covers early-stage products. Sign up and route your first send today.