
Setting up your InboxKit account takes just a few minutes — and once you’re done, your entire outbound infrastructure (domains, mailboxes, and sequencer integrations) will be ready to launch.
Follow this quick step-by-step guide to go live:
Go to app.inboxkit.com and click Sign Up.
Enter your work email and password to create your InboxKit account.
Pro Tip: If you already had access via InboxAutomate, you’ll need to sign up once again — the new InboxKit dashboard uses a separate login system.
Once you sign up, you’ll be redirected to your InboxKit Dashboard.
Before purchasing domains or mailboxes, you can either:
Subscribe to a plan under Settings → Billing → Subscriptions
Professional: $39/month — 10 mailboxes
Agency: $99/month — 30 mailboxes
Enterprise: $299/month — 100 mailboxes + API access
(Domains are always billed separately)
OR
Add Credits to your wallet
Go to Settings → Billing → Credits → Add Credits.
1 credit = $1 USD, and credits can be used for domains, mailboxes, and add-ons.
Not sure which to choose? You can always skip this step and add credits right from the checkout page while buying your first domain or mailbox.
InboxKit supports two domain setup options:
Option 1: Buy New DomainsGo to Domains → Buy Domains
Select your preferred TLDs (.com, .net, .io, etc.)
Complete checkout — your domain will appear as Pending
Option 2: Connect Existing DomainsGo to Domains → Existing Domains
Enter your domain name(s) or upload via CSV
Copy the nameservers provided by InboxKit
Paste them into your registrar (e.g., Namecheap, GoDaddy, Google Domains)
Wait for DNS propagation (24–48 hours) — once complete, the status changes to Active
Domains hosted on Cloudflare cannot be connected since Cloudflare doesn’t allow nameserver replacement.
Once your domains show as Active, it’s time to add mailboxes.
1. Go to Mailboxes → Add Mailbox
2. Choose Google Workspace or Microsoft 365 or Azure
3. Select your preferred domain
4. Enter the username, first name, last name and add your profile picture.
5. Click on proceed and complete the checkout process.
6. Mailbox creation will begin automatically — statuses will show as:
7. Scheduled → Processing → Active
(usually within 2–6 hours)
All SPF/DKIM/MX/DMARC configurations are handled automatically in the backend — no manual setup needed.
InboxKit integrates directly with top outreach tools like Smartlead, Instantly and many more.
Go to Sequencers → Add Sequencer
Choose the platform (Smartlead or Instantly)
Authenticate using your credentials
Your sequencer is now linked with InboxKit
Once connected:
Go to Exports → Create Export
Select the sequencer
Choose the mailboxes you want to export
Click Run Export
Your mailboxes will appear inside your sequencer (e.g., Smartlead, Instantly) within minutes — ready to use in your campaigns!
You’re All Set!That’s it — your cold-email infrastructure is live.
You’ve now:
Created your InboxKit account
Added credits or subscription
Connected domains
Created mailboxes
Linked your sequencer
Exported mailboxes successfully
Congratulations — your mailboxes are now active and connected to your outreach platform! You can start sending campaigns confidently knowing every domain, mailbox, and DNS record is fully optimized.