Certified Mail Envelopes – Flat Size 9×12 – Pack of 200

Maintain compliance and ensure delivery with these 200 Certified Mail Envelopes, specially designed for secure and verifiable USPS Certified Mail.

When you need to send larger documents without folding, these envelopes deliver reliability, compliance, and efficiency in one durable package.

• Spacious 9×12 flat format. Fits up to 70 sheets or booklets without creasing.
• Bright white finish. Professional appearance that reflects your authority and attention to detail.
• USPS Certified Design. Built in compliance with Certified Mail, Return Receipt Electronic, Restricted Delivery, and Priority Certified Mail standards.
• Seamlessly compatible with Certified Mail Labels. Address, track, and print with ease using our online platform.
• Proudly made in the USA. Meets USPS-approved specifications for Certified Mail envelopes.

Enclosed Features:

• 200 Certified Mail Envelopes (Flat 9×12)
• Free access to our online USPS Certified Mail Labels platform. Address, manage, and track mailings with 24/7 access to digital proof stored securely for 10 years.
• Secure digital archive of all mailing activity. Including proof of mailing and delivery, stored for 10 years, eliminating lost green cards or paperwork.
• Supports unlimited users. Manage all your office’s mail with shared access and centralized tracking.
• No more bulky paperwork. Everything is organized and searchable online.

Why Choose Flat Size 9×12:

• Professionally mail oversized documents. No folding means your materials arrive intact and professional.
• Improves reliability and trust. Digital proof of mailing and delivery supports compliance and reduces disputes.
• Enhances staff productivity. Get mailing done from your desk and move on to mission-critical tasks.

Why Choose Certified Mail Labels:

• Streamline your mailing process. Print labels from your desk and skip the trip to the Post Office.
• Save time, money, and enhance reliability. Know exactly when your documents were mailed and delivered.
• Streamline recordkeeping. No more lost green cards or manual filing. Everything is archived digitally for 10 years at no additional cost.

Not available in any store or Post Office. Ships USPS Priority Mail with 2 or 3 day delivery.