A Mailbox sends and receives at your Domain, for a person or an Agent, with mail authenticated before its first send.

For developers

Needs Buy a domain

What you get

1mailbox at the address, for a person or an agentMailbox
3mail records that prove your mail is yours, checked before the first sendDNS Record
1record that routes incoming mail to youDNS Record
1thread per conversation, inbound and outboundThread
1slow start and daily cap for sales mail, so it lands in inboxesMailbox

Your agent does

Domain.authenticate → Mailbox.create

You, to your agent

Give me dana@leaseline.app.

Get email at my domain.

Set up support@leaseline.app email for customers.

# 1. Domain.authenticate
curl -X POST https://api.sb/leaseline.app/domains/domain_leaseline_app/authenticate \
  -H "Authorization: Bearer $STARTUP_BUILDER_API_KEY"

# 2. Mailbox.create
curl -X POST https://api.sb/leaseline.app/mailboxes \
  -H "Authorization: Bearer $STARTUP_BUILDER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"medium":"email","address":"dana@leaseline.app","stream":"transactional"}'

import { $ } from 'startup-builder'

await $.Domain.authenticate({ domain: 'domain_leaseline_app' })
await $.Mailbox.create({ medium: 'email', address: 'dana@leaseline.app', stream: 'transactional' })

npx startup-builder do Domain.authenticate --json '{"domain":"domain_leaseline_app"}'
npx startup-builder do Mailbox.create --json '{"medium":"email","address":"dana@leaseline.app","stream":"transactional"}'

{
  "name": "do",
  "arguments": {
    "code": "await $.Domain.authenticate({ domain: 'domain_leaseline_app' })\nreturn await $.Mailbox.create({ medium: 'email', address: 'dana@leaseline.app', stream: 'transactional' })"
  }
}

Change it

Route support@ to the support agent.
Forward billing@ to my bookkeeper.
Retire the old hello@ address.

Under the hood

Systems: Mailboxes
Nouns: Domain, Mailbox, DNS Record, Thread
Events: Domain.authenticated, Mailbox.created

What you getCopy Anchor Link

Your agent doesCopy Anchor Link

Change itCopy Anchor Link

Under the hoodCopy Anchor Link

What you get

Your agent does

Change it

Under the hood