1583 Pro support
Starting a request or checking an existing one?
Have your mailbox provider's name, mailbox address, applicant details, and written instructions ready. The form opens on a separate page; support is available if a field or instruction is unclear.
Already sent your details?
Reply to your existing email or message thread so we can keep the request together. Include the name and email you used, when you submitted, and the step where you need help.
You do not need to submit the same request again to ask for an update. Please do not send ID images or payment-card details in a support message.
Phone support: (727) 210-5717
What happens next?
We review the mailbox instructions and any notarization or clarification needed. Opening or filling out the form is not a completed notarization.
Need more detail?
Frequently asked questions · USPS official resources · About the operator and sources