What Can Be Mailed to Jail or Prison: Inmate Mail Rules
Most jails and prisons accept personal letters, photographs and money orders, and reject cash, packages from individuals, and anything with adhesive, glitter or electronics. Almost all incoming general mail is opened and inspected for contraband before delivery, while properly marked legal mail is usually opened in the incarcerated person's presence.
Rules for inmate mail vary from facility to facility, but the pattern is consistent: letters and cards arrive through the postal service, cash and most packages do not, and nearly all incoming mail is opened and inspected before it reaches the person named on the envelope. County jails, state prison systems and the Federal Bureau of Prisons each publish their own written policy, and that policy — not a single national standard — decides what happens to a particular envelope.
The distinction matters because mail that breaks a facility's rules is commonly returned to the sender, confiscated, or held as evidence in a disciplinary or criminal matter. An envelope that would be unremarkable in ordinary life — a greeting card with glitter, a paperback book, a folded bill tucked behind the flap — can be rejected before it is ever delivered.
What follows describes how the process generally works: which items are accepted, which are refused, and how inspection is carried out.
What is generally accepted
Most correctional systems permit the following, subject to limits set in the facility's written policy:
- Personal letters and postcards on plain paper, in a plain white or manila envelope.
- Photographs printed on paper. Instant or Polaroid-style photos are restricted in many places because the backing can be peeled apart to conceal contraband.
- Money orders, cashier's checks and government checks for deposit into the person's trust or commissary account — the in-house store where incarcerated people buy snacks, hygiene items and stamps. Facilities typically require the instrument to be made out exactly as the policy directs, with the person's full committed name and identification number.
- Books, magazines and newspapers sent directly by a publisher or an approved vendor, not by a friend or relative.
- Legal documents from courts, attorneys and government agencies, which are usually handled as privileged correspondence.
- Blank envelopes and postage stamps — almost always purchased inside the facility rather than mailed in from outside.
What is commonly rejected
Items refused most often include:
- Cash, coins and personal checks. Currency is among the most common reasons mail is refused; even a small amount is treated as contraband.
- Anything with adhesive, glitter, stickers, tape, staples, paper clips, ribbon or glue, because these materials can conceal drugs or alter documents.
- Perfumed, stained or lipstick-marked paper, and greeting cards with musical or electronic components.
- Padded envelopes, oversized envelopes and any package that does not come from an approved vendor.
- Food, clothing, tobacco or vape products, medication, cosmetics and over-the-counter drugs.
- Electronics, including memory cards, SIM cards, cables and e-cigarettes.
- Sexually explicit images, material promoting violence or gang activity, and publications describing escape or weapon-making methods.
- Letters written in code, containing threats, or discussing plans to bring contraband inside.
How incoming mail is inspected
Most facilities treat incoming general mail as non-private. Staff open each envelope, remove the contents, and check them for contraband, often by hand and sometimes with an X-ray machine or a canine search.
Some systems go further and digitally scan every page, delivering an image to the incarcerated person rather than the original paper; the original may be stored, returned or destroyed. Outgoing mail is also subject to inspection in many facilities, particularly when staff suspect a letter is being used to coordinate a crime or pass messages between people not permitted to communicate.
Where a facility uses an outside scanning vendor, letters may be addressed to a processing center rather than to the prison itself. The facility's policy states the correct address and whether photographs, cards or legal mail are exempt.
Withheld mail is normally documented. Many systems notify the incarcerated person that an item was rejected and allow that person — not the sender — to challenge the decision through the facility's grievance process. The sender often learns of a rejection only when the item comes back in the mail.
Legal and privileged mail
Correspondence with attorneys, courts and some government agencies is handled differently from ordinary mail. It is usually opened in the presence of the incarcerated person rather than in a staff room, and it is generally not read, because of the recognized interest in protecting confidential legal communications. To qualify, the envelope typically must be clearly marked as legal mail and come from an attorney, a court or another recognized sender. Mail from a relative who happens to be a lawyer, or an envelope labeled "legal" by someone unconnected to a case, commonly does not qualify.
Courts have generally held that restrictions on prisoner correspondence must serve a legitimate penological interest and leave open an alternative channel of communication, an analysis rooted in the Cornell Law School treatment of First Amendment doctrine. Facilities are expected to follow their own written procedures when they open, inspect or withhold privileged mail.
Addressing mail correctly
Most mail that fails does so for predictable reasons. A complete address normally includes:
- The person's full committed name as it appears in facility records — not a nickname.
- The facility-assigned identification number, sometimes called a register, DOC or booking number.
- The name of the facility.
- The facility's mailing address, which may be a post office box or a processing center different from the street address of the building.
- The sender's complete return address.
Mail sent without a return address may be discarded rather than returned. Facilities also commonly reject mail addressed to two people at once, mail sent under a false name, and envelopes missing an identification number. The Federal Bureau of Prisons inmate locator can confirm the institution where a person is held, and USA.gov links to state prisoner-record resources that often publish the same details.
| Item | Commonly accepted | Typical conditions or limits |
|---|---|---|
| Letters and postcards | Yes | Plain paper; no tape, stickers or perfume |
| Photographs | Yes | Paper prints only in many places; instant photos often banned |
| Money orders or cashier's checks | Yes | Payable as directed, with full name and ID number |
| Books and magazines | Sometimes | Only directly from a publisher or approved vendor |
| Legal mail | Yes | Marked as legal and sent by a recognized sender |
| Cash or personal checks | No | Classed as contraband |
| Packages from individuals | No | Only approved-vendor shipments |
| Greeting cards with extras | No | Glitter, music chips, electronics and stickers refused |
| Electronics or memory cards | No | Not accepted through general mail |
If mail is rejected or withheld
Facility policies describe what happens to refused mail: it may be returned to the sender, held while an investigation proceeds, or retained as evidence. Introducing contraband into a correctional facility is a criminal offense in many jurisdictions, and both the sender and the recipient can face consequences. Letters containing drugs, including paper soaked in synthetic cannabinoids, are treated as contraband even when nothing is visible to the eye.
Scam correspondence is a separate problem. The Federal Trade Commission publishes consumer guidance on frauds that impersonate attorneys, courts or government agencies and ask for payment, and families of incarcerated people are frequently targeted because the sender knows a relative may act quickly under pressure.
Mail is one of several contact channels inside a facility; the Federal Communications Commission explains how telephone service is regulated, and the Bureau of Justice Statistics publishes data on correctional populations and facility operations.
Where this varies
Mail rules are set at the facility level, so the same envelope can be accepted at one institution and refused at another a few miles away. Points of variation include:
- Postcard-only policies, under which a jail accepts only metered or stamped postcards and returns envelopes.
- Photograph limits — the number, size and type allowed, and whether instant photos are banned.
- Vendor requirements, such as accepting books only directly from a publisher or only from a list of approved retailers.
- Scanning and digital delivery, where mail is delivered electronically and originals are stored or discarded.
- Definitions of legal mail, including which senders qualify and whether the envelope is opened in the person's presence.
- Money handling — the accepted payment instruments, payee details and deposit method.
Because of this variation, the facility's own published policy is the controlling document. Federal prisons operate under national program statements, while state and county facilities follow their own administrative rules, and any specific question is answered by the written policy of the institution where the person is held rather than by general practice elsewhere.
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Frequently asked questions
Can I send money in a letter to someone in jail?
No. Cash, coins and personal checks are treated as contraband in most facilities, even in small amounts. Money is usually deposited by money order or cashier's check made out as the facility directs, or through an electronic deposit system the facility has approved. The written policy states accepted methods and payee details.
How do I address a letter to an inmate?
Include the person's full committed name, the facility-assigned identification number, the facility name and its mailing address, plus your complete return address. Mail without a return address is commonly discarded rather than returned, and envelopes with a missing or incorrect identification number are frequently rejected.
Is incoming mail read by staff?
General mail is usually opened and inspected for contraband, and in some systems it is photocopied or scanned so the incarcerated person receives a digital copy instead of the original. Privileged legal mail is typically opened in the person's presence and not read. Outgoing mail may also be inspected.
Why was my letter returned?
Common reasons include cash or checks enclosed, stickers, glitter, tape or perfume on the paper, a missing return address, an incorrect identification number, or a greeting card with a musical component. Facilities typically document withheld mail and notify the incarcerated person, who can challenge the decision through the grievance process.
Can I mail books or magazines?
Usually only if they are sent directly by a publisher or an approved retailer. Many systems refuse books and magazines mailed by family or friends because staff cannot verify the contents. Some facilities maintain a list of approved vendors, and the facility's policy states which rule applies.
Does legal mail have special rules?
Yes. Envelopes from attorneys, courts and certain government agencies are normally treated as privileged, opened in the incarcerated person's presence and not read. The envelope must usually be clearly marked as legal mail and come from a recognized sender; relatives who are attorneys often must use a different channel.
Written and reviewed by the InmateSearch.co Editorial Team. This page describes how the process generally works and is not legal advice.
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