A mail forwarding service provides a mailing address (usually in your domicile state) and collects your mail. You let the forwarder know where you are (or will be) and they bundle your mail and send it to you. Some services will scan mail for viewing on the web, watch for critical pieces of mail to come in, etc. If you intend to use your mail forwarding service address as your domicile address take note of the county where the forwarded is located. There are reports that many mail forwarding service addresses have been blacklisted and may not suffice as a residence or physical address. There are also ad hoc ways to receive packages.

Mail centers associated with iPostal1 or similar offer digital mailboxes. Mail can be scanned, emailed, viewed online, physically forwarded, etc. {Secessus uses a local mail center that has the iPostal1 backend and it works well enough. About $99/yr plus the cost of any extra scans, forwards, etc}

• American Home Base (Good Sam) - Pensacola, Escambia county.
• My RV Mail, Crestview, Okaloosa county. Used by RoamingKat¹⁾
• St. Brendan's Isle, Jacksonville, Duval county. Used by: RetiredNomad²⁾, Seeker³⁾, pamerica⁴⁾, Reducto⁵⁾. Note: SBI may reject vandwellers who do not have a “registered RV”.⁶⁾

• J&B Mailroom, Pahrump, Nye county. Used by: akrvbob⁷⁾ closing Aug, 2018.⁸⁾
• Mail, Messages, and More, Pahrump, Nye county.⁹⁾

• Mail Forwarding Services, Jefferson, Marlon county. Used by Rico.¹⁰⁾

• America's Mailbox, Box Elder, Pennington county. Used by Mzbrandi.¹¹⁾
• Dakota Post, Sioux Falls, Minnehaha county. Used by Flaggship1.¹²⁾
• My Dakota Address, Madison, Lake county. Used by Nana25K¹³⁾ out of business
• My Home Address, Emery, Hanson county. Used by okmunky.¹⁴⁾
• Your Best Address, Sioux Falls, Minnehaha county. Used by jerichorik.¹⁵⁾

• Escapees, Livingston, Polk county. Used by: wandering mike¹⁶⁾, abnorm¹⁷⁾.
• Texas Home Base, Wichita Falls, Wichita county, TX.
• My Local Mailbox, San Antonio, Bexar county, Tx.

Texas county info has moved to the domicile page.

The United States Postal Service runs a forwarding service called Premium Forwarding Service (PFS).¹⁸⁾ It is limited in usefulness, as it is very expensive and can be active for only a year.

The USPS may provide P.O. Boxes to homeless persons under certain circumstances, or they can use General Delivery.