Most "transactional email" platforms are newsletter platforms in disguise.
qwicmail is built for the boring, important mail — receipts, login codes, delivery confirmations — that has to land every single time. Three things we do differently.
Closed onboarding, by design.
We turn down most signup applications on purpose. Every tenant on qwicmail is verified by a human — business name, use case, sending volume, the lot. There is no self-serve sign-up with a credit card.
The reason is simple: shared sending infrastructure means shared reputation. One sloppy newsletter sender on a shared pool tanks inbox placement for everyone on it. We don't let that happen.
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1
Submit application. Business name, contact, what you'll send, expected volume.
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2
Human review. A real person looks at your application, typically same day.
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3
Invite link. Approved? You get a portal invite, set a password + 2FA, complete KYC.
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4
Warm-up. Daily cap starts at 1k and escalates to 10k then uncapped as your reputation builds.
Our own MTA. Our own IPs.
We don't resell another provider. The SMTP engine, the dispatcher, the bounce processor, the suppression service — written in Go, running on our own infrastructure, on IPs we own and announce.
That matters because it means we can fix problems at the level where problems happen — TLS negotiation, MX retries, MTA-STS policy lookup — instead of opening a ticket with an upstream vendor.
- SMTP Homegrown engine built on emersion/go-smtp. DKIM-signs every message; opportunistic + enforced TLS where the recipient supports it.
- DNS MTA-STS policy lookup before every send to compliant recipients (Gmail, Yahoo, iCloud, …).
- VERP Per-message envelope-from so every bounce routes back to the exact message and the exact tenant.
- UNSUB RFC 8058 one-click unsubscribe header on every send. Gmail + Apple Mail surface the affordance natively.
Humans on call, not a status page.
Bounce rate spikes? IP gets a temporary reputation hit? A senior deliverability engineer picks up the phone. No tier-1 triage, no canned reply that asks you to "check your DNS records."
We charge a premium because deliverability ops is what you're actually paying for. The infrastructure is the table stakes.
- Direct line to deliverability ops via your portal — no shared inbox.
- Proactive reputation monitoring — we tell you before Gmail does.
- A real engineer handles the postmaster-tools dance with mailbox providers.
- If we make a mistake we tell you about it. Postmortems shared openly.
When qwicmail is the wrong fit
We are not the cheapest. We don't do open self-serve sign-up. We don't do marketing-newsletter A/B testing or behavioural-trigger funnels. If you're shopping for cheapest cost-per-thousand or building a marketing automation stack, you'll be happier elsewhere — and we'll be happier not having you on the platform.