Choose the required mailing service

Physical mail remains useful when a process calls for a tangible mailpiece, carrier tracking, or a record connected to the underlying document. The required service depends on the specific business or legal context.

Editorial gouache illustration: A carefully arranged mail preparation table with an open laptop, blank letters and envelopes, two clearly separate review trays, orange lamp.
Editorial illustration by Great Lakes Computing Office.

Connect the workflow to Iris

Iris Postal Forms provides browser, REST API, and MCP workflows for preparing physical letters. Iris prints an approved order and submits the mailpiece to USPS.

Review the order before submission

An MCP-connected application can prepare document, address, and mailing inputs, but an accountable person or organization should review the content, authority, address suggestions, service, and calculated price before submission.

Keep mailing records together

Eligible orders can include Certified Mail and electronic return-receipt options. Store the approved document, order record, tracking information, and available carrier events according to the organization's record policy.

Product availability and service terms can change. Check the provider’s current information before placing an order or implementing a workflow.