Write a Letter Online and Mail It | Plain Letter Form
Use this form to write a letter online and mail it as physical postal mail. Type your message, add optional attachments or a signature, preview exactly what PostalForm will print, then enter the mailing addresses and review the price before checkout.
Need more context?
PostalForm provides the form instructions, mailing notes, document checklist, and source links below. Review these details before completing the guided fields, particularly when the recipient requires a signature, enclosure, or specific submission method. Preview the completed PDF and confirm the destination and price before paying.
Which mailing option and proof should you choose?
PostalForm offers U.S. letter mailing with different delivery and proof options. First-Class suits routine correspondence; Certified Mail adds mailing and delivery records, and Electronic Return Receipt adds a downloadable signature record. Expedited delivery prioritizes speed. Review the destination, estimated dates, total price, and required proof before paying.
| Mailing option | Delivery speed | Proof | Use when | Avoid when |
|---|---|---|---|---|
| USPS First-Class Mail | First-Class Mail delivery estimate shown before payment. | Available processing scans; no recipient signature or Certified Mail receipt. | Routine letters when a signed delivery record is unnecessary. | Your instructions require Certified Mail, a signature, or a deadline this estimate cannot meet. |
| Certified Mail | First-Class delivery speed; certification does not make delivery faster. | USPS mailing and delivery/attempt tracking; no Electronic Return Receipt unless added. | You need a recorded mailing and delivery or attempted-delivery status. | You need a downloadable signature record or faster delivery. |
| Certified Mail + Electronic Return Receipt | First-Class delivery speed; signature collection may require redelivery or pickup. | Certified Mail records plus a downloadable USPS signature record when available. | Your instructions call for Certified Mail with Return Receipt or you need the signature record. | Your recipient requires an original enclosure, personal service, or another submission method. |
| Expedited / Express with signature | Faster estimated delivery range shown at checkout; production cutoff and destination apply. | Carrier tracking and signature option; this is separate from Certified Mail and ERR. | Speed and signature matter and checkout offers the service for your destination. | A rule specifically requires Certified Mail or the displayed estimate misses your deadline. |
Availability and delivery estimates depend on the document and destination. Mailing proof does not establish that a recipient accepted a filing or that legal service requirements were met. Delivery estimates · Full pricing
What you need+
- Your letter body text
- Recipient name and mailing address
- Sender name and return mailing address
- Optional signature, supporting attachments, or handwritten-card message
- Supporting attachments (optional) (optional) — Upload supporting files to append behind your letter. PDF, images, DOCX, HTML, Markdown, RTF, and text files can be converted for the print preview.
Form summary+
Use this form to write a letter online and mail it as physical postal mail. Type your message, add optional attachments or a signature, preview exactly what PostalForm will print, then enter the mailing addresses and review the price before checkout.
| Search intent | Direct answer | Best next step |
|---|---|---|
| Write a letter online and mail it | Yes. PostalForm turns typed text into a printable PDF, then prints, envelopes, posts, and mails the physical letter. | Use this workflow when you do not have a finished PDF yet. |
| Mail a typed letter without a printer | Use the editor, preview the PDF, and let PostalForm handle printing, envelope preparation, postage, and carrier handoff. | Continue through preview, address, and price-review steps before checkout. |
| Plain letter form | A plain letter is a simple typed letter without a special agency form or template. | Use this workflow for ordinary requests, notices, explanations, personal letters, and business correspondence. |
| Upload a PDF instead | If the document is already final as a PDF, use the PDF upload route instead of retyping it. | Use Mail a PDF online for finished files. |
| Email versus postal mail | This workflow sends physical postal mail, not email. | Use an official email or portal route if the recipient requires digital submission. |
USPS explains that ordinary domestic letters need a properly addressed envelope and postage before being sent through a mailbox, collection box, or Post Office. PostalForm handles the print, envelope, postage, and handoff steps for users who start with typed text in a browser.
How it works+
- Write your letter - Enter and format your letter in the editor.
- Add a signature or attachments - Include an optional signature and upload supporting documents, images, or text files.
- Preview PDF - Review the exact PDF we will print.
- Add mailing details - Confirm sender and recipient addresses.
- Pay and mail - We print and mail your letter via USPS.
Where it gets mailed+
Enter the recipient address during checkout.
Packet order+
- Cover sheet (auto-generated)
- Completed form PDF
- Attachments (in the order you upload)
Common mistakes+
- Forgetting to include your contact details in the letter body when needed.
- Using this workflow when the recipient requires an official form, original wet-ink document, or portal submission instead of a written letter.
- Pasting text with unusual spacing from rich-text editors without previewing.
- Uploading attachments in the wrong order behind the letter.
- Skipping the preview step before mailing.
- Assuming this sends email; it creates physical postal mail.
FAQs+
Can I write a plain letter online and have it mailed?
Yes. Type the letter in PostalForm, preview the generated PDF, add sender and recipient addresses, review the price, and PostalForm prints, envelopes, posts, and mails the physical letter.
Can I write a letter online and mail it without a printer?
Yes. Use this workflow when the letter starts as text in your browser. PostalForm creates the printable PDF, lets you preview it, then handles printing, envelope preparation, postage, and mailing after checkout.
Can I send a letter through USPS from my browser?
Yes, when the letter can be printed from typed text or a digital file. PostalForm prepares the physical mailpiece and hands it to the carrier; USPS still controls postal processing and delivery after acceptance.
What is a plain letter form?
A plain letter form is a general-purpose letter writer for ordinary correspondence. It is not an agency-specific form; it creates printable letter pages from your typed text.
Should I use the plain letter form or upload a PDF?
Use the plain letter form when you still need to write the letter. Use the PDF upload route when the document is already final and should be mailed exactly as a finished file.
Can I write multiple pages?
Yes. If your text exceeds one page, PostalForm automatically adds more pages and shows the generated PDF before mailing.
Can I add a signature to the letter?
Yes. Use the optional signature field when the recipient expects a signed letter, or upload a finished signed PDF through the PDF mailing flow.
Can I include attachments behind my letter?
Yes. Upload supporting PDFs, images, DOCX, HTML, Markdown, RTF, or text files and review the complete converted PDF before mailing.
Can I send the letter by Certified Mail?
Certified Mail is available when the final mailpiece, address, and selected service level are eligible. You can review available mailing options and the total price before checkout.
Can I send a handwritten card instead?
Yes. If handwritten-card mode is available, use it for a short card-style message. Use the plain typed-letter mode when you need formatting, multiple pages, a signature, or attachments.
Will I see the final PDF before mailing?
Yes. You can preview the generated PDF before approving and continuing to mailing details.
Is this the same as sending an email?
No. This workflow creates physical postal mail, not email. If the recipient accepts email or portal upload, use that official digital channel instead.
Can I use this for a request letter or notice letter?
Yes. Use the plain letter workflow for request letters, notices, explanations, and ordinary correspondence when no special form template is required.
Is this an official legal or agency form?
No. This is a general letter-writing workflow. If the recipient requires an official form, wet-ink original, portal submission, or legal service process, follow that requirement instead.
Sources+
Related+
Last verified+
Last Letters verification: May 31, 2026