💰 Pricing

Pay Per Domain & Storage — Not Per User

Add unlimited mailboxes to every domain. You only pay for the number of domains and the storage capacity you need. Compare all features →

Unlimited users. Zero per-seat fees.
Unlike traditional email providers, DO Mailbox charges by domain + storage — not per mailbox. Hire 100 new employees and pay the same monthly rate.

Pricing plans

All plans include: unlimited mailboxes · DMARC/SPF/DKIM · AI spam filter · admin panel · 99.9% uptime SLA
Starter

1 Domain

Perfect for single-brand companies & startups

💾 200 GB storage
$ 10 /mo

per month, billed monthly

or $96/year — save 20%

  • 1 custom domain
  • Unlimited mailboxes
  • 200 GB total storage
  • Admin panel & controls
  • DMARC / SPF / DKIM
  • AI spam & phishing filter
  • Catch-all address
  • Email support (24h SLA)
  • Dedicated IP address
  • Forensic DMARC reports
  • Priority phone support
Request Demo

14-day trial · no credit card

Business

3 Domains

Growing companies with multiple brands or regions

💾 500 GB storage
$ 18 /mo

per month, billed monthly

or $172/year — save 20%

  • 3 custom domains
  • Unlimited mailboxes per domain
  • 500 GB total storage
  • Advanced admin controls
  • DMARC aggregate reports
  • AI spam & phishing filter
  • Catch-all per domain
  • Live chat + email support
  • Advanced analytics
  • Dedicated IP address
  • Forensic DMARC reports
Request Demo

14-day trial · no credit card

Pro

5 Domains

Agencies, enterprises & multi-entity organizations

💾 1,000 GB (1 TB) storage
$ 25 /mo

per month, billed monthly

or $240/year — save 20%

  • 5 custom domains
  • Unlimited mailboxes per domain
  • 1,000 GB (1 TB) total storage
  • Dedicated IP address
  • Forensic DMARC reports
  • Enterprise security suite
  • 24/7 priority phone support
  • Custom routing rules
  • Full analytics & API access
  • SLA guarantee
Request Demo

14-day trial · no credit card

Enterprise / Custom

More than 5 domains? Let's talk.

Need 10, 20, or 100 domains? Require a dedicated server? We build custom plans around your exact domain count, storage allocation, and compliance requirements. No per-seat pricing — ever.

  • Custom domain count
  • Custom storage quota
  • Dedicated infrastructure
  • Custom SLA
  • Priority onboarding
Contact Sales Schedule Demo

Plan Comparison

Feature Starter
$10/mo		 Business
$18/mo		 Pro
$25/mo
Domains 1 3 5
Total Storage 200 GB 500 GB 1 TB
Mailboxes per domain ∞ ∞ ∞
Admin panel ✓ ✓ ✓
DMARC / SPF / DKIM ✓ ✓ ✓
AI spam filter ✓ ✓ ✓
Catch-all address ✓ ✓ ✓
DMARC aggregate reports — ✓ ✓
DMARC forensic reports — — ✓
Dedicated IP — — ✓
Support channel Email Email + Chat 24/7 Phone
API access — — ✓
SLA guarantee 99.9% 99.9% 99.9%
All features in detail · About our company · Terms of Service · Privacy Policy · Compare plans ↑

Frequently Asked Questions

How is pricing calculated?

DO Mailbox pricing is based on the number of domains and total storage — not per user. You can add unlimited email users within each domain at no extra cost. Only disk space matters.

Can I add unlimited users per domain?

Yes! Every plan supports unlimited mailboxes per domain. You only pay for the number of domains and the total storage capacity you need.

What happens when I reach my storage limit?

You'll receive email alerts at 80% and 95% capacity. You can upgrade to the next plan or contact us to arrange extra storage. Email delivery is never blocked without advance warning.

Can I upgrade or downgrade between plans?

Absolutely. You can upgrade or downgrade at any time. Upgrades take effect immediately; downgrades apply at the next billing cycle. Unused storage is non-refundable.

Is my data stored in the USA or Canada?

Yes — all data is stored exclusively in data centers in the United States (US-East, US-West) and Canada (Toronto). Your data never leaves North America.

Do you support Canadian privacy regulations (PIPEDA)?

Yes. DO Mailbox is fully compliant with Canada's PIPEDA and Quebec's Law 25. We provide all required data processing agreements for Canadian customers.

What does "more domains" mean — can I get 10 domains?

Yes. If you need more than 5 domains, contact our sales team and we'll create a custom plan tailored to your domain count, storage requirements, and budget.

Do you offer a free trial?

Yes — all plans include a 14-day free trial with full feature access across all domains. No credit card required to start.

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About DO Mailbox
 ✉️
Talk to Us
Contact Sales

Need a custom plan for more domains?

Our sales team will design a plan around your exact domain count, storage, and compliance requirements. No per-user fees — ever.

Contact Our Team Schedule a Demo