Bulk Mail & Mass Mailing

AllPost handles bulk mailing campaigns of any size. Upload a spreadsheet of addresses and a document template, and we print, stuff, stamp, and mail every piece.

How Bulk Mailing Works

1. Upload Addresses

Import your mailing list from CSV or spreadsheet. We validate every address against the USPS database.

2. Upload Document

Upload your letter, invoice, or postcard design. Optionally use mail merge for personalized content.

3. We Handle Everything

We print, fold, stuff envelopes, add postage, and deliver to USPS. Track every piece from your dashboard.

Common Bulk Mail Uses

Frequently Asked Questions

How many pieces can I send at once?
There is no limit. AllPost handles bulk mailings from a few dozen to thousands of pieces. Larger orders are processed in batches and mailed within 1-2 business days.
Can I personalize each letter?
Yes. AllPost supports mail merge, so each letter can include the recipient's name, address, account number, or other personalized data from your spreadsheet.
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