zapmail-domain-setup-public

Cold Email Domain Setup: Dynadot + Zapmail (Public Edition)

Complete workflow to generate short domain names, purchase them on Dynadot, and set them up on Zapmail with inboxes ready for cold email sending.

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First-Time Setup (Onboarding)

Before running anything, you need two API keys stored as environment variables.

1. Get Your Dynadot API Key

1. Log into dynadot.com
2. Go to Tools > API in the left sidebar
3. Enable API access and copy your API key
4. Whitelist your IP address (required by Dynadot)

2. Get Your Zapmail API Key

1. Log into zapmail.ai
2. Go to Settings > API
3. Copy your API key

3. Store Your Keys

Add these to a .env file in your project root (or export them in your shell):

# .env — NEVER commit this file
DYNADOT_API_KEY=your_dynadot_key_here
ZAPMAIL_API_KEY=your_zapmail_key_here

Load them in your script:

import os
from dotenv import load_dotenv
load_dotenv()

DYNADOT_API_KEY = os.environ["DYNADOT_API_KEY"]
ZAPMAIL_API_KEY = os.environ["ZAPMAIL_API_KEY"]

4. Verify Access

Test both APIs before doing anything:

Dynadot — check wallet balance:

GET https://api.dynadot.com/api3.json?key=<YOUR_KEY>&command=account_info

Response includes AccountBalance (e.g., "$106.20").

Zapmail — list domains:

GET https://api.zapmail.ai/api/v2/domains/assignable?limit=10&page=1
Header: x-auth-zapmail: <YOUR_KEY>

If both return 200, you're ready.

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Full Workflow Overview

Step 1: Generate domain name candidates         ~instant
Step 2: Check availability on Dynadot            ~1 min per 500 domains
Step 3: Purchase available domains               ~1 min per 100 domains
   | (domains now registered on Dynadot)
Step 4: Switch nameservers to Zapmail            ~1 min per 500 domains
   | WAIT 15-20 minutes for DNS propagation
Step 5: Connect domains on Zapmail               ~2 min per 500 domains
   | WAIT 10-30 minutes for domains to become assignable
Step 6: Create inboxes on Zapmail                ~3 min per 500 domains
   | WAIT 4-6 HOURS for inbox provisioning
Step 7: Export to your email sending platform    ~instant