Professional email at you@yourdomain.com with open and click tracking included. $4.99/mailbox/month — or let your agent set it all up for free via API.
Your agent calls POST /api/signup and gets an API key instantly. No email verification. No password. No human required.
Request
curl -X POST https://emailinabox.com/api/signup \
-H "Content-Type: application/json" \
-d '{
"tenantId": "my-agency",
"agent": "claude-code"
}'
Response
{
"apiKey": "eib_free_my_agency_a1b2c3...",
"tenantId": "my-agency",
"plan": "free",
"limits": {
"mailboxes": 3,
"domains": 1,
"emailsPerDay": 100,
"tracking": true
}
}
Most small businesses either pay for email hosting AND a separate tracking tool, or they send emails with zero idea if anyone reads them.
POST /api/signup returns an API key in 2 seconds. No forms, no email, no human required.
API call provisions the domain, creates mailboxes, auto-configures DKIM, SPF, and SSL.
Compose tracked emails via API. Open pixel and click tracking injected automatically.
Fetch open/click data via API. Agent surfaces engagement insights in your workflow.
Tell Claude Code to set up email for your SaaS. It provisions mailboxes, configures tracking, and reports open rates — all in one session.
Cursor agent provisions client email on every new project deploy. 3 mailboxes free per client. Scale to Standard when they grow.
CI/CD pipeline provisions mailboxes for new tenants. Agent handles email ops. Humans handle deals.
Email hosting and email analytics in one platform. Every feature included with every mailbox.
Use your own domain for professional addresses. you@yourcompany.com, info@, sales@ — whatever you need.
Access your mail from our webmail client or connect any app — Outlook, Thunderbird, Apple Mail, Gmail app, or your phone.
Automatic SSL certificates for every domain. Encrypted connections for webmail, IMAP, and SMTP.
Built-in spam filtering and virus scanning on every mailbox. Keeps junk out without you lifting a finger.
Create aliases like support@, billing@, hello@ that forward to your real mailboxes. No extra mailbox needed.
Watch your email server provision in real time. Domain, mailbox, SSL, DNS, DKIM — all live in under 5 minutes.
See who opened your email, when, and on what device. A tiny invisible pixel does the work.
Know which links get clicked and by whom. Links are tracked automatically with zero visible change.
Open rates, click rates, device breakdown, geo heatmap, timeline — all in one view.
Click any email to see per-recipient open/click breakdown and engagement timeline.
Search any contact to see their full engagement history across all emails you've sent.
Write and send tracked emails from the dashboard. Save templates for repeat outreach.
Every email you send from the dashboard is tracked. No extension. No add-on. No extra cost.
Our users see higher engagement because emails come from their own verified domain, not a mass-mail service.
Links are automatically tracked. See which links get attention and which get ignored.
Know if they read it on mobile or desktop, and from which city or country.
Mailtrack charges $4.99/mo, Yesware $15/mo, Mixmax $29/mo — and none include email hosting. You still need Google Workspace on top. We include everything for $4.99.
Start free with 3 mailboxes. Upgrade when your agent needs more. No credit card for free tier.
For production workloads
For large organizations
Other providers charge separately for email hosting and email tracking. Here's what you actually pay for both.
| EmailInABox | Google + Mailtrack | Google + Yesware | Google + Mixmax | |
|---|---|---|---|---|
| Email hosting | Included | $7/mo (Google) | $7/mo (Google) | $7/mo (Google) |
| Email tracking | Included | $4.99/mo | $15/mo | $29/mo |
| Combined per-user | $4.99/mo | $11.99/mo | $22/mo | $36/mo |
| 10-person team / year | $599/yr | $1,439/yr | $2,640/yr | $4,320/yr |
| Includes email hosting | Built-in | |||
| Custom domain email | (via Google) | (via Google) | (via Google) | |
| Open & click tracking | ||||
| Engagement dashboard | ||||
| No extension required | Chrome ext | Chrome ext | Chrome ext | |
| One platform, one bill | 2 bills | 2 bills | 2 bills |
Prices shown are published rates (April 2026). Google Workspace Starter: $7/user/mo. Mailtrack Pro: $4.99/user/mo. Yesware Pro: $15/user/mo (annual). Mixmax Growth: $29/user/mo (annual). All require separate email hosting. EmailInABox includes hosting + analytics in one platform.
We protect shared IP reputation so your emails land where they should.
SPF, DKIM, and DMARC records set up automatically for every domain you deploy. No DNS expertise needed.
First violation: suspension and warning. Second: permanent termination. We don't let spammers degrade your sending reputation.
Continuous monitoring of outbound mail, blacklist status, and IP reputation. Issues caught before they affect your delivery.
Every feature, every fix — tracked and transparent. See what's done, what's next, and what's planned.
Roadmap powered by Buggazi — our bug & feature tracking system.
Free tier: 3 mailboxes, 1 domain. API key in 2 seconds. No credit card.
Works with Claude Code, Cursor, Windsurf, and any HTTP-capable agent.
"Claude Code provisioned 3 mailboxes and configured DKIM in one session. I didn't touch a dashboard."
Dev using Claude Code"Agent signs up, gets API key, deploys domain, sets up tracking. I just review the PR."
Agency founder, Cursor user"We automated email ops for 12 clients. Agent provisions mailboxes on every deploy."
SaaS team, 12 mailboxes