First Class Mail is the standard way to send letters, invoices, and documents through USPS. AllPost handles the printing and mailing so you don't have to.
How It Works
1. Upload Your Document
Upload a PDF, Word document, or image. We print it on professional-grade paper.
2. Enter the Address
Type the recipient's address. We validate and format it automatically.
3. We Handle the Rest
We print, fold, stuff the envelope, add postage, and mail it through USPS.
What's Included
- Professional printing on white paper
- Standard #10 business envelope
- Address validation against USPS database
- USPS First Class postage
- Delivery in 2-5 business days
Common Uses
First class mail is ideal for invoices, statements, personal letters, greeting cards, official notices, tax documents, and any standard correspondence. It's the most affordable way to send physical mail.