Certified MailMade Simple

Send USPS certified mail online in minutes. Perfect for legal process servers, attorneys, and businesses that need proof of mailing.

Everything you need for certified mail

Professional-grade certified mail service with full USPS integration

Legal Proof

Electronic proof of acceptance and delivery for court filings

Real-time Tracking

Track your certified mail from creation to delivery

10-Year Archive

All documents stored securely for legal compliance

Simple, transparent pricing

Pay per piece with no monthly fees or commitments

Certified Mail

#10 or 6x9 envelope

$7.50 / piece

  • USPS Certified Mail
  • Electronic tracking
  • Proof of acceptance
Most popular

Certified + eRR

With Electronic Return Receipt

$10.50 / piece

  • USPS Certified Mail
  • Electronic Return Receipt
  • Signature confirmation
  • PDF proof of delivery

Certified + Restricted

Addressee only delivery

$16.50 / piece

  • USPS Certified Mail
  • Electronic Return Receipt
  • Restricted delivery
  • Maximum legal protection

Ready to streamline your certified mail?

Join thousands of legal professionals who trust 321Certified for their certified mail needs.