One inbox for every domain you own.
Read and answer mail for all your domains in one place. Send from your app with one API key.
One DNS setup per domain. No forwarding rules, no second service for sending.
7 days free on the Basic plan.
Can't reset password
Billing question
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Feature request
A customer emails support@yourproduct.com. Then what?
Right now it hits a forwarding rule, shows up in your personal inbox two days later, and your reply goes out as the wrong person.
Two stacks per domain
One service sends mail from your app. Something else catches what comes back. Both get set up again for every domain you add.
Nowhere to read it
A send API gives you logs and a debug view. You can't open a customer thread and answer it like a person.
Replies go out as the wrong you
Forwarding gets the mail to your Gmail. Answering as support@yourdomain.com is the part that keeps failing DMARC.

Built for founders running more than one product
Every address on every domain you own, arriving in the same inbox.
Every domain, one inbox
Mail for all your domains lands in a single inbox, color tagged so you know which project it came from.
Reply as the right brand
Answers go out from the address the mail arrived at. Threads, reply all and forward work the way you expect.
Same domains, one API
Send transactional mail from your app with one POST. No second vendor, no second DNS setup.
Your main inbox doesn't have to move
you@yourdomain.com stays exactly where it is. Point support.yourdomain.com at Mailyond and nothing about your current setup changes.
How it works
Add three DNS records
DKIM, Return-Path and MX. Paste them in, hit verify, about 5 minutes.
Mail starts arriving
Anything sent to any address on that domain shows up in your inbox.
Reply, or send from code
Answer in the dashboard, or POST to the API with your workspace key.
Send from your app with one POST
No SDK to learn, no config file. One API key per workspace.
fetch("https://mailyond.com/api/external/emails", {
method: "POST",
headers: { "Authorization": "Bearer myond_..." },
body: JSON.stringify({
to: "user@example.com",
from: "support@yourdomain.com",
subject: "Welcome",
html: "<h1>Hello!</h1>"
})
})
Already on Resend? Mailyond uses the same API. Point the Resend SDK at https://mailyond.com/api/external, swap in your myond_ key, and resend.emails.send() keeps working. Nothing else in your code changes.
Answer support mail from Claude or Grok Bot
Mailyond runs an MCP server, so your agent reads the inbox across every domain you have connected and replies in the right thread. Same API key you already use for sending.
claude mcp add --transport http \
mailyond https://mailyond.com/mcp \
--header "Authorization: Bearer myond_..."
Setup Mailyond mcp server from https://mailyond.com/mcp using API key myond_...
list_conversationsWhat came in, across every domain or just one of them.get_conversationThe whole thread as plain text.reply_to_conversationAnswers in-thread, from the address the mail arrived at.send_emailA new message from any connected domain.list_domainsWhich domains that key can read and send on.
There is nothing to install. Cursor, Windsurf and VS Code take the same URL and header in their own mcp.json, and the same key works over plain HTTP if you would rather write the calls yourself.
Pricing
Basic
- Up to 5 domains
- 3,000 emails / month
- $1.80 / 1,000 extra emails
- No per-inbox pricing
Five domains, sending and receiving, on one bill and one DNS setup each. That is $2 a domain for both halves of email.
Start 7 days freeAgency
- Up to 30 domains
- 15,000 emails / month
- $1.30 / 1,000 extra emails
- No per-inbox pricing
- Up to 10 workspace members
Thirty domains under one login, at a flat rate instead of a separate mailbox bill for each one.
Start 7 days freeNeed more?
Tell us how many domains and how much volume, and we'll put a plan together.
Before you connect anything
Why this exists
I run five products, each on its own domain. Support mail reached me through a forwarding rule and I answered it from my personal Gmail, so customers got replies from an address that had nothing to do with the product they bought. I built Mailyond because I wanted this inbox to exist for myself. It handles my domains before it handles yours.
– Rares, founder
7 days free on the Basic plan.