Letters The IRIS mailing library
How to choose a website to mail one physical letter
Find an online letter mailing service with no required subscription. Compare one-off payment, full price, PDF review, privacy, and postal records.
US Letter PDF · Up to 26 MB · Review before you pay
At a glance
Direct answer: choose for your one letter, not a mailing campaign
For a single physical letter, look for an online print-and-mail service that accepts one order without a required recurring plan, shows a complete itemized price, lets you inspect the final PDF and both addresses, and explains what status and postal records you can actually obtain. There is no objectively best website for every letter: the right choice depends on your document, deadline, budget, privacy needs, and required proof. IRIS supports a one-off letter purchase through Stripe Checkout, with document, address, and option review before payment; compare its current prices on the IRIS pricing page.
Questions to ask before opening an account or paying
- Can I buy exactly one letter without committing to a subscription, prepaid balance, minimum quantity, or recurring charge? Check the provider's current terms rather than assuming a free account means no plan.
- What is the total for my actual PDF: base service, printing for every page, color or duplex choices, postage, optional Certified Mail or Return Receipt, and applicable tax? Compare final checkout amounts, not just a stamp price or advertised starting price.
- Can I preview every page and confirm the return address, recipient address, print options, and mailing class before submitting an irreversible order?
- Does the provider say when it will prepare and hand off the piece, distinguish its order updates from USPS acceptance, and explain whether it supplies a tracking number or an actual mailing receipt for your chosen service?
- Are its document handling and privacy terms appropriate for the contents? Without an applicable written agreement, do not upload government identifiers, highly sensitive medical records, payment-card credentials, or other information requiring a privacy commitment the provider has not accepted.
See the current IRIS pricing page for line items, review the order total on the mailing page, and inspect the final Stripe payment amount before authorizing the one-time charge.
Match the service to the record you need
| If you need… | Look for… |
|---|---|
| A routine personal letter | Ordinary First-Class Mail may be enough; keep a copy of the letter and order details, but do not mistake an order confirmation for USPS acceptance or delivery proof. |
| Evidence the piece entered the mail | Ask for a USPS acceptance or mailing record for eligible Certified Mail. IRIS shows provider-reported order updates and a tracking number when available; it does not offer a downloadable, postmarked USPS mailing receipt. If a stamped receipt is required, arrange the appropriate retail USPS service. |
| A delivery-related record | USPS Certified Mail tracking can show available delivery or attempt events; an eligible Return Receipt is a separate add-on for signature information. Check whether the provider actually supplies the Return Receipt artifact rather than assuming an order-status page is one. |
Certified Mail is an extra service, not a universal requirement or a guarantee of arrival by a particular date. Check the recipient's instructions before buying it.
Check PDF and privacy fit before choosing
If you already have a finished letter, export it as a readable US Letter PDF and inspect its page order, margins, signatures, and attachments. Compare each site's supported file size and page limits before starting; a site that cannot print the complete packet is not the right choice even if its starting price is lower.
A print-and-mail company must handle the file and postal addresses to produce physical mail. Read its privacy terms before uploading; without an applicable written agreement with IRIS, do not submit government identifiers, highly sensitive medical records, or payment-card credentials. If the recipient requires those contents, use an approved direct submission or another suitable channel. Keep private order-status links private.
Official forms and deadlines can change the answer
For an agency form, court notice, or other rules-bound document, first check the issuer's current instructions for the accepted delivery method, destination, original ink signatures, enclosures, and deadline. A service that prints a PDF cannot furnish an original signature, a physical check, or another required original enclosure. If those are required, use an approved alternative instead of assuming online print-and-mail is sufficient.
Allow time for printing, handoff, and postal transit. An order confirmation does not mean the document was accepted by USPS or by the recipient agency, and postal tracking cannot establish that a filing was complete or timely.
Sources and current instructions
Review the linked source when a mailing depends on current USPS, agency, contractual, or legal requirements.
Send one letter. Pay once.
Upload your finished PDF, check both addresses, and see the full price before Stripe checkout. No subscription, no account.
How to send a physical letter online
Mail a letter online without a printer or post office trip. Upload a PDF from your phone or computer, add both addresses, and see the full price before you pay.
Read the guide
Certified Mail vs. regular mail
Certified Mail vs. First-Class Mail: compare cost, tracking, delivery records, and Return Receipt to decide which service your letter actually needs.
Read the guide
How to prove that you mailed a letter
Learn which records prove a letter was mailed: a Certified Mail receipt, Certificate of Mailing, tracking, and what an online order page can and cannot show.
Read the guidePlanning mail for a business or team?
Tell us the mailpiece type, expected volume, and workflow you need. We will confirm whether the current IRIS letter, form, or postcard service fits.