Send marketing email
that actually lands.
Connect your domain, import contacts, and run campaigns through enterprise-grade infrastructure — with built-in guardrails that protect your sender reputation.
No credit card required · Verify your domain in minutes
Trusted infrastructure for high-volume senders
Everything you need to run email
From domain setup to deliverability — one platform, no glue code.
Domain in minutes
Add your domain and we generate the exact SPF, DKIM, DMARC and MAIL FROM records. We verify automatically before you send.
Contacts & CSV
Import lists with column mapping, dedupe and validation. Suppressed and bounced addresses are filtered out for you.
Templates that reuse
Build reusable HTML and block templates with merge tags. Preview, send a test, then ship to your whole list.
Campaigns at scale
Schedule or send now. A throttled queue respects send limits so big campaigns go out smoothly, never in bursts.
Analytics that matter
Track delivery, opens, clicks, bounces and unsubscribes per campaign — plus quota usage at a glance.
Reputation guardrails
Automatic suppression, bounce/complaint monitoring and auto-pause keep your sender reputation — and ours — healthy.
We protect your sender reputation
Most platforms let you send until something breaks. Mail Box watches deliverability continuously and steps in automatically — so your emails keep landing in the inbox.
- Hard bounces & complaints are auto-suppressed — never sent to again
- Per-account bounce and complaint rates monitored in real time
- Risky senders are auto-paused before they can hurt your domain
- Mandatory one-click unsubscribe on every marketing email
Thresholds enforced below industry limits (5% bounce · 0.1% complaint).
Simple, quota-based pricing
Pick a monthly plan with the email quota you need. Upgrade any time.
Starter
8,000 emails / month
- 1 sending domain
- 5,000 contacts
- HTML & block templates
- Basic analytics
- Email support
Growth
35,000 emails / month
- 3 sending domains
- 25,000 contacts
- Scheduled campaigns
- Advanced analytics
- Reputation dashboard
- Priority support
Pro
120,000 emails / month
- 10 sending domains
- 100,000 contacts
- Dedicated send pool
- Team roles & RBAC
- Custom DMARC support
- Dedicated manager
All plans include domain verification, suppression management and reputation guardrails.
“We switched to Mail Box and our inbox placement jumped overnight. The reputation guardrails mean we stopped worrying about getting our sending blocked.”
Frequently asked questions
Add your domain in the dashboard and we generate the exact SPF, DKIM, DMARC and MAIL FROM DNS records. Add them at your registrar and we verify automatically — usually within minutes.
Sending pauses cleanly and we prompt you to upgrade. Your quota resets at the start of each billing cycle. No surprise overage charges.
We auto-suppress hard bounces and complaints, monitor bounce/complaint rates continuously, and automatically pause risky senders before they can damage your domain reputation.
Yes — upload a CSV with column mapping and validation. We dedupe and filter out previously suppressed addresses so you stay compliant.
Both. Build reusable HTML and block templates with merge tags, preview them, send a test, then ship to your whole list. Attachments up to 10 MB per email.
Ready to send email that lands?
Set up your domain, import your list, and launch your first campaign today.