Email infrastructure,
on your terms.
Kiotomail is the privacy-first email layer for products that send and receive at scale: unlimited dynamic addresses, clean inbound webhooks, and total control of every message — never mined, never yours to lose.
You're on the list.
You're #— in the access queue. We'll reach out to you as we onboard new teams.
For teams & builders. No spam — one note when your workspace is ready.
curl https://api.kiotomail.com/v1/addresses \
-H "Authorization: Bearer sk_live_…" \
-d '{ "user": "u_8f21",
"webhook": "/hooks/inbound" }'
# → every reply, header & attachment
# delivered to your endpoint as JSON,
# in under 200ms. you own all of it.
{ "address": "u8f21.r4k@kiotomail.com",
"status": "live" }
Everything your product needs from email.
Send, receive, and route at scale — with privacy and control wired in from the first byte, not bolted on later.
Unlimited dynamic addresses
Mint a fresh, real inbox per user, customer, or workflow with one API call. Perfect for products that give every signup their own address.
Inbound, parsed to your webhook
Every reply, header, and attachment arrives at your endpoint as clean JSON in milliseconds. No IMAP, no polling, no MIME wrangling.
Privacy by architecture
Encrypted at rest, never sold, never used to train anything. Region-pinned storage and one-call deletion — compliance that's the default.
Deliverability that lands
SPF, DKIM, DMARC and Return-Path aligned for you, on warmed infrastructure. Your mail reaches the inbox, not the spam folder.
Full control, zero lock-in
Your domain, your data, your rules. Export everything anytime, route on your own logic, and bring your own domain in minutes.
Developer-first API
Send, receive, and route in a few lines. Typed SDKs, signed webhooks, idempotent everything, and docs that respect your time.
Your product runs on email. It shouldn't run on someone else's terms.
— the Kiotomail team
Build on email you control.
We're onboarding teams in waves. Tell us where to reach you and we'll get you a workspace.
Join the teams already building on Kiotomail.