Private Email Addresses

Messages sent to a Private Email Address are only visible by the owner of the Private Email Address.

Private Email Addresses have additional features:

Reserve a Private Address


Reserve private address

Reserve Private Address
curl -X POST -H "Mailsac-Key: YOUR_API_KEY_HERE"

# Output from curl
    "_id": "",
    "catchAll": null,
    "created": "2020-07-23T14:49:10.129Z",
    "enablews": null,
    "forward": null,
    "info": "",
    "owner": "monkeyman",
    "password": null,
    "updated": "2020-07-23T14:49:10.129Z",
    "webhook": null,
    "webhookSlack": null,
    "webhookSlackToFrom": null
Reserve Private Address
const superagent = require('superagent')

  .set('Mailsac-Key', 'YOUR_API_KEY_HERE')
  .then((reservation) => {
  .catch(err => {
  _id: '',
  owner: 'monkeyman',
  forward: null,
  enablews: null,
  webhook: null,
  webhookSlack: null,
  webhookSlackToFrom: null,
  catchAll: null,
  password: null,
  info: '',
  created: '2020-07-23T15:00:00.935Z',
  updated: '2020-07-23T15:00:00.935Z'
Reserve Private Address
import requests
from pprint import pprint

headers = {'Mailsac-Key': 'YOUR_API_KEY_HERE'}
url = ''

r =, headers=headers)
{'_id': '',
 'catchAll': None,
 'created': '2020-07-23T15:04:15.981Z',
 'enablews': None,
 'forward': None,
 'info': '',
 'owner': 'mjmayer',
 'password': None,
 'updated': '2020-07-23T15:04:15.981Z',
 'webhook': None,
 'webhookSlack': None,
 'webhookSlackToFrom': None}

Private Addresses In a Custom Domain

Private Addresses can be used in Custom Domains. This allows an address within a Custom Domain to have the features of a Private Email Address.