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Guide

How to send the same letter to 20 addresses without printing it manually

For identical, non-credit correspondence, a mail merge can turn one letter and a recipient spreadsheet into separate addressed mailpieces. Confirm first that the same content belongs in every envelope and that mail is an acceptable delivery method for your situation.

Published May 11, 2026 • Updated Jul 11, 2026

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The basic workflow

  1. Put every recipient in a CSV or spreadsheet.
  2. Finalize one canonical letter.
  3. Add only the merge fields each recipient needs.
  4. Preview every generated copy.
  5. Send a separate, correctly addressed mailpiece to each recipient.
  6. Retain the final copies and mailing records.

Useful columns include recipient name, street or PO Box, unit or mail stop, city, state, ZIP Code, and any non-sensitive reference that belongs in that recipient's letter.

Do not bulk-send credit-report disputes

Credit-report disputes are not an appropriate 20-address mail-merge use case. Each credit bureau should receive a dispute only if its report contains the error, and each packet may require different report details, evidence, identity documents, and recipient instructions.

PostalForm's paid credit-report dispute packet workflow is currently unavailable. Use these free official resources:

Never copy one person's credit report, identity documents, or account records into a generic batch. Prepare and review each affected bureau's dispute separately.

When a generic bulk mailing is a better fit

Bulk mail can fit when:

  • every recipient should receive the same non-credit document
  • only names, addresses, or simple references vary
  • no recipient-specific sensitive attachment set is required
  • you have independently confirmed any deadline and required delivery method

PostalForm's bulk-mail flow can create separate mailpieces from a recipient list. It does not decide whether a letter is legally sufficient, whether a deadline applies, or whether ordinary mail is an acceptable method of service.

When to create separate orders instead

Do not use a generic batch when:

  • facts, requested relief, or enclosures differ by recipient
  • sensitive account or identity records must be segregated
  • a contract, statute, court rule, or agency instruction requires a specific address or service method
  • each recipient needs an individual proof record that the selected bulk product does not provide

Common mistakes

  • Reusing a generic letter when recipient-specific facts matter
  • Sending the wrong attachment to a recipient
  • Including original records instead of copies
  • Failing to review a suite, unit, mail stop, or ZIP Code
  • Assuming a tracking product satisfies a legal service requirement

FAQs

Can I mail one PDF to 20 addresses?
Yes, if every recipient should receive the same non-credit PDF and the selected mailing method is appropriate.
Can I personalize each copy?
Yes. Use carefully reviewed merge fields.
Does tracking make a legal notice valid?
Not by itself. Contents, timing, recipient, address, and permitted delivery method may all matter.
What if the recipients are credit bureaus?
Do not use the bulk workflow. Follow each affected bureau's official dispute process separately.

Ready to send it?

If every recipient should receive the same document and you have confirmed the appropriate delivery requirements, upload your list and review every mailpiece before checkout.

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