Massachusetts inmate mail
Send a letter to an inmate in Massachusetts
Confirm the Massachusetts commitment number and current prison address, then write online. PieterPost prints, addresses, stamps, and mails your physical letter.
Choose their Massachusetts facilityMassachusetts state-prison addresses
Massachusetts facility-specific address format
Massachusetts personal mail goes to the recipient's current MADOC institution. Use its published mailing address, which may differ from its street or visitor address.
MADOC may photocopy accepted non-privileged correspondence and give the recipient the copy rather than the physical original.
Address format
Three simple steps
How to send a letter to an inmate in Massachusetts
Choose the current facility and add the inmate's commitment number. We help you carry the address into the letter flow.
- 1Choose their current facility
- 2Write and review your message
- 3We print, stamp, and mail it
Current Massachusetts guidance
Helpful inmate-mail rules
- Letter length
- No universal statewide page limit is published. An institution may set operational limits, so check before sending an unusually long letter.
- Paper format
- Use plain, copy-friendly pages with dark writing or print. Do not send an original you need returned.
- Envelope and address
- Include the full committed name, commitment number, institution mailing address, and your complete name and return address.
- How it arrives
- MADOC may give the recipient a photocopy of authorized non-privileged correspondence instead of the physical original.
Items that need another approved route
PieterPost is for ordinary written letters. To help avoid a mailroom rejection, do not add these items to the envelope:
- Irreplaceable original photographs, drawings, certificates, or other one-of-a-kind material
- Glued layers, loose objects, or decorative additions that do not photocopy cleanly
- Musical, electronic, layered, pop-up, padded, or heavily decorated cards
- Faint, low-contrast, or otherwise unreadable pages and images
PieterPost takes care of the rest
You only need to write your message
No printer, paper, envelope, stamp, or trip to the post office. We prepare and mail the physical letter for you.
- Write your letter online from any device
- Check the finished letter before paying
- We format and print it for the facility
- We address, stamp, and mail the envelope
Massachusetts facility finder
Find their prison or local jail
Choose the current facility on the map. We will carry the selected address into the letter flow for you to review.
Is the person in federal prison?
Search the Bureau of Prisons inmate locator and continue with the federal letter flow.
Common questions
How do I send a letter to someone in a Massachusetts state prison?
Confirm the person's commitment number, current prison, and its mailing address. Write online and PieterPost will format and print your letter, add an envelope and postage, and mail the physical letter.
Which Massachusetts prison address should I use?
Use the inmate-mail or correspondence address for the person's current MADOC institution. Do not assume its public street or visitor address is also the correct mailing address.
How do I find the commitment number and current prison?
Use the Massachusetts incarcerated-person search to confirm the current institution and commitment number. Recheck both before sending if the person may have transferred.
Will the recipient get my original Massachusetts letter?
MADOC may photocopy authorized incoming non-privileged correspondence and give the incarcerated person the copy. Send clear, replaceable pages and do not rely on the physical original being delivered.
Does this Massachusetts guidance cover county and federal facilities?
No. This page covers Massachusetts state prisons operated by MADOC. County houses of correction, federal prisons, juvenile facilities, and other custody systems use their own addresses and rules.