First-Class Mail
LetterStream’s powerful online letter tools make sending business-critical mail fast, flexible, and incredibly easy. With a wide range of print and mail options, the best way to explore what’s possible is to simply.
Choose the letter type that fits your document, then customize every detail:
Print on one side or both sides of the page (Simplex/Duplex)
Select from white, pre-perforated, or a variety of colored papers
Choose black-and-white or vibrant full-color printing
Add return or remittance envelopes — pre-stamped if needed
Include eye-catching messages or instructions on the outside of your letters
Our tools are built to handle everything from simple letters to complex business mailings with precision and speed. Whether you’re mailing invoices, customer notifications, or compliance documents, you’ll find all the flexibility and control you need to send professional letters online — without the hassle of printers, paper, or trips to the post office.
First-Class Letter starting as low as: $1.23 each
Send mail online today — LetterStream makes print and mail a breeze!
Certified Mail
Certified Mail is a domestic postal product in which the sending and receipt of a letter or large envelope are tracked and recorded. Customers may access the tracking information within their account. No green forms to fill out or potentially lose. Our enhanced Certified Mail service transcends the traditional approach. Gone are the days of tedious forms, supply management and time-consuming processes. Using LetterStream makes it as simple as a few clicks. Simply upload your pre-made documents or create a document in your online portal, to expedite your mailing process and enjoy the ability to access your stored letters and addresses at your convenience.
Say goodbye to filing hassles, our system organizes signatures and tracking details seamlessly online. Plus, real-time tracking is at your fingertips, providing you with instant insights into the progress of your sent letters. LetterStream provides an experience around sending USPS Certified Mail that is streamlined, efficient and customized to your needs.
Easily Track Certified Mail
USPS Certified Mail tracking is easy when you use LetterStream! Our intuitive online platform allows you to stay informed every step of the way.
- Monitor the status of your Certified Letter
- Watch your Certified Mail progress in real-time
- Know when your Certified Mail has been delivered
- View the Electronic Return Receipt Signature – add-on service
Certified Letter starting as low as: $8.34 each
Certified Letter with Electronic Return Receipt as low as $11.16 each
- Certified Letter starting as low as: $8.34 each
- Certified Letter with Electronic Return Receipt (ERR) as low as $11.16 each
Postcard Mail
Send Custom Postcards Online — Fast, Accurate, and Hassle-Free
LetterStream makes it easy to send professional postcards for business-critical communications. Whether you’re sending reminders, appointment cards, notices, or marketing postcards, our cloud-based postcard tool lets you create, print, and send postcards without touching a printer or visiting the post office.
Choose from standard postcard sizes, full-color or black-and-white printing, and single-sided or double-sided layouts. Upload your design or document, and we’ll handle the rest—printing, cutting, addressing, and sending via USPS, all with production-level accuracy and speed.
Perfect for appointment reminders, HOA notices, billing alerts, and promotional mailers
Send one postcard or thousands—no minimums
Full USPS address validation and postage included
Real-time tracking and detailed mailing history
Streamline your postcard campaigns with the same reliability and precision trusted by law firms, property managers, healthcare providers, marketing professionals, and businesses nationwide.
Pro Postcard (5.5×8.5″) starting as low as $1.26 each
Express Postcard (4.5 x 5.5″) starting as low as .87¢ each
- Pro Postcard (5.5×8.5″) starting as low as $1.26 each
- Express Postcard (4.5 x 5.5″) starting as low as .87¢ each
FedEx 2Day Mail
Extreme speed and precision!
Send FedEx 2Day Mail Online — Fast, Secure, and Trackable
Need your documents to arrive fast and be fully trackable? With LetterStream, you can send time-sensitive business mail via FedEx 2Day without ever leaving your desk. Our streamlined platform lets you upload your documents online, and we’ll print, prep, and hand them off to FedEx for reliable 2-day delivery across the U.S.
Perfect for legal notices, compliance documents, high-value communications, or any critical mail that can’t wait.
Full FedEx tracking and delivery confirmation
Upload PDFs and send in minutes—no software or templates needed
Professional printing and packaging included
Address validation ensures accuracy and deliverability
No minimums, no contracts, no trips to a FedEx location
Whether you’re sending one urgent document or hundreds of high-priority letters, LetterStream gives you the speed of FedEx with the simplicity of online mail.
FedEx 2Day Mail as low as $14.20 each
Flat Mailings
Send Flat Mailings Online — 9×12 Envelope with Up to 75 Sheets
Need to send large documents, multi-page reports, or important materials without creasing or folding? LetterStream makes it easy to send flat mailings in professional 9×12 envelopes, all from your computer. Just upload your documents and choose Flat Mailing—we’ll print, prep, and send your job with unmatched accuracy and speed.
Ideal for contracts, legal packets, audit reports, board meeting materials, and other business-critical documents that must arrive flat, clean, and complete.
Fits up to 75 sheets of paper—no stapling, no folding when sent
Professional 9×12 envelope with secure sealing
First-Class Mail® or Certified Mail options available
Add remittance or return envelopes inside the package
Real-time tracking, address validation, and full mailing history
Whether you’re sending to clients, courts, or compliance departments, our flat mailing solution ensures your documents arrive intact and professional—every time.
Flat Mail (9″x12″) Starting as low as $2.67 each
Address List Cleanup (CASS and NCOA)
Clean Up Your Address List with CAS & NCOA — Maximize Deliverability, Minimize Waste
Make sure your mail reaches its intended recipients—no matter where they’ve moved. LetterStream’s Address List Clean-Up service combines CASS (Coding Accuracy Support System) Certification with NCOA (National Change of Address) processing to verify, correct, and update your addresses according to official USPS data.
Before your mail is printed or sent, we automatically clean and optimize your list to meet postal standards, reduce undeliverables, and increase your chances of successful delivery.
Correct spelling errors, street formats, and ZIP codes
Identify and update addresses of individuals and businesses who’ve moved (NCOA)
Ensure full USPS® compliance and eligibility for mailing discounts
Eliminate invalid or non-mailable addresses
Built-in address verification for First-Class, Certified Mail, and Flat Mailings
Save time, reduce returned mail, and protect your budget
Whether you’re sending invoices, statements, legal documents, or marketing pieces, clean addresses mean better results—and fewer headaches. LetterStream® builds CASS and NCOA processing directly into every job, so your mail is smarter from the start.
See more information about mailing list cleanup, or log in and choose the Address Cleanup option.
Coupon Booklets and Coupon Sheets
Keep your cash-flow coming.
Payment coupons can be complicated and frustrating to create, so we’ve created simple to use coupon solutions.
Simply upload a CSV formatted mailing list to get started. Our tools will walk you through a few simple steps and the coupon headache will be gone before you know it.
Coupon booklets or coupon sheets (with inline perforations) are available.
Ballot and Proxy Mailings
Annual Meeting Packets
Annual meeting mailings are greatly simplified with LetterStream’s Express Letter tool. You can add pre-stamped return envelopes, secret ballot envelopes and color paper options all with a few clicks of the mouse. Whether your annual meeting mailing needs one sheet of paper or twenty, we can eliminate the headaches and get your mailing out on time, helping you comply with even the most complex bylaws. Read more about how we can help with these complex mailings.Donor Mailings
Your organization relies on help from your supporters.
We can help you reach out to them and remind them of just how important they are to your operation. Allowing you more time to do what you do best.HIPAA and Privacy Mailings
Yes, we are HIPAA compliant!
As your HIPAA “business associate” we take privacy and security very seriously. Our facility is secured with proximity cards and visitor logging. All data transfer is done using SSL. All of our full-time staff members have taken a HIPAA training course and are HIPAA certified and all new employees are trained on the importance of HIPAA and information privacy and security.Registered Mail
It’s like Certified Mail for other countries.
Registered Mail is very similar to Certified Mail except it has tighter internal controls at the Post Office and it is available for every country in the world. We provide online proofs, online tracking and online signatures all wrapped in our quick-and-easy process.
Whether you’re sending legal notices to clients in Europe or original documents to partners overseas, LetterStream provides the structure, visibility, and accountability required for high-stakes communication across borders.
Registered Mail isn’t just mail — it’s documented proof in motion. With LetterStream, you get professional preparation and international delivery, fully online.
Registered Mail starting as low as $35.83 each