What Is Privileged and Special Mail in Prison?

Privileged and special mail in federal prison is correspondence between an inmate and specific outside parties — mainly attorneys, courts, and certain government officials — that staff may open to check for contraband only in the inmate’s presence and may not read. The federal regulation at 28 C.F.R. § 540.2 calls this category “special mail,” while court decisions going back to Wolff v. McDonnell often use “privileged mail” for the attorney-client subset. Whether a given letter actually gets this protection depends on three things: who sent it, who it is going to, and whether the envelope is marked the way the regulations require.

Who Qualifies as a Special Mail Correspondent

The regulation lists specific senders and recipients, and a detail many people miss is that the outgoing and incoming lists are not the same. The outgoing list is broader. The incoming list is narrower.¹

An inmate may send special mail to the President and Vice President, the U.S. Department of Justice (including the Bureau of Prisons), U.S. Attorneys’ Offices, the Surgeon General, the U.S. Public Health Service, the Secretaries of the Army, Navy, or Air Force, U.S. and state courts (including probation officers), members of Congress, embassies and consulates, governors, state attorneys general, prosecuting attorneys, state corrections directors, state parole commissioners, state legislators, other federal and state law enforcement offices, attorneys, and representatives of the news media.¹

Incoming special mail is limited to the President and Vice President, attorneys, members of Congress, embassies and consulates, the Department of Justice (excluding the Bureau of Prisons but including U.S. Attorneys), other federal law enforcement officers, state attorneys general, prosecuting attorneys, governors, U.S. and state courts, and state probation officers.¹

The practical effect: a letter an inmate sends out to a state legislator or the Surgeon General leaves as special mail, but a reply from that same official arrives as general correspondence and can be opened and read by staff. If the sender is not on the incoming list, the letter does not get special treatment no matter how sensitive it is.

How the Envelope Must Be Marked

Envelope markings are the single biggest factor in whether incoming mail actually gets protected. Even a letter from a sitting federal judge is processed as regular mail if the envelope is not marked right. Two elements must appear on the outside:²

The sender’s name and a clear indication of their status — for an attorney, that means the attorney’s name and a notation that the person is an attorney.
The phrase “Special Mail—Open only in the presence of the inmate” on the front of the envelope.

If either is missing, staff may treat the letter as general correspondence and open, inspect, and read it without the inmate present.² The regulation puts the burden on the inmate to tell their attorney about these requirements, so counsel who have never written to someone in federal custody may not know the rules unless told.³ The carrier makes no difference. USPS, FedEx, UPS — the same marking and identification rules apply.

What Staff Can and Cannot Do With Incoming Mail

When a properly marked envelope arrives, the warden must open it only in the inmate’s presence. Staff inspect the contents for physical contraband and verify that any enclosures qualify as special mail. The correspondence itself may not be read or copied.²

Each piece of incoming legal mail must be logged with the date and time it was received, the date and time it was opened in the inmate’s presence, and the name of the staff member who delivered it. The inmate may be asked to sign confirming receipt.³ That log exists so there is a record if a dispute later arises.

The line between inspecting and reading is the whole point of the protection. Staff can shake the envelope, feel for unusual objects, and use electronic scanning equipment such as x-ray machines or ion spectrometers to detect drugs or hidden items.⁴ They cannot read the words on the page or copy the contents. The inspection should take only a few minutes before the documents go to the inmate for private review.

On arrival at any BOP facility, each inmate receives written notice explaining how special mail works, including a clear statement that special mail “may be opened only in your presence to be checked for contraband.”⁵

How Outgoing Special Mail Works

Outgoing mail runs on different rules. Under normal circumstances an inmate may seal outgoing special mail, and staff may not inspect it.² Staff stamp the back of the sealed envelope with a certification notice telling the recipient that the letter was processed through special mail procedures and was neither opened nor inspected.⁶

There is one exception. A warden, with approval from regional legal counsel, can place an inmate on “restricted special mail status” if there is documented evidence that the inmate has used special mail to threaten physical harm to a recipient. On restricted status, the inmate must present all special mail to staff for inspection before sealing. Staff inspect for contraband in the inmate’s presence, and if the intended recipient has requested it, staff may read the mail to verify it contains no threats. Once cleared, the inmate seals the letter in front of staff and hands it over immediately.⁶ Restricted status is reviewed at least every 180 days and can be challenged through the administrative remedy program.

Mail To and From Paralegals and Legal Assistants

Attorneys often rely on paralegals, legal assistants, and law students. The envelope requirements for this traffic are stricter. For incoming mail from an attorney’s assistant or legal aid student to be treated as special mail, the envelope must identify the attorney or legal aid supervisor — not just the assistant — and must be marked on the front as coming from the attorney or supervisor.³

When an inmate writes to a paralegal, the letter must be addressed to the attorney, the legal aid supervisor, or the law firm, with an “attention” line for the specific person. Addressing the envelope only to the assistant by name risks losing the special mail protection.³

News Media Correspondence Is Treated Differently

Representatives of the news media sit in an unusual spot. Inmates may write to specific media representatives by name or title as special mail, which means the outgoing letter can be sealed and is not inspected.⁷

Incoming mail from media representatives does not get the same treatment. Staff open it, inspect for contraband, verify that it qualifies as media correspondence, and check whether the content promotes illegal activity or violates Bureau regulations.⁷ That is a real departure from attorney or court mail, which staff cannot read at all.

The regulation also defines who counts. The person’s primary job must be gathering or reporting news for a general-circulation newspaper, a national news magazine sold by newsstands and subscription, a national or international news service, or a radio or television news program licensed by the FCC whose main purpose is reporting the news.¹ Bloggers, podcast hosts, and freelance journalists who do not fit these categories may not qualify. Inmates also cannot receive compensation for media correspondence or act as reporters themselves.

TRULINCS Email Is Not Privileged

This is where inmates and their attorneys most often get hurt. The Bureau of Prisons runs an electronic messaging system called TRULINCS (Trust Fund Limited Inmate Computer System) that lets inmates exchange emails with approved contacts, including attorneys. These messages are not privileged and are subject to monitoring.

Using TRULINCS requires signing a participation agreement that includes explicit consent to monitoring, including a statement that messages to and from attorneys will not be treated as privileged. Each login shows a warning banner repeating the notice. Non-inmate contacts, including attorneys, get a similar notification when they are added to the system.

Federal prosecutors have routinely obtained TRULINCS messages, including attorney-client exchanges. There is no overarching Department of Justice policy on when prosecutors can access these messages, which has produced inconsistencies across U.S. Attorney’s offices. Some have internal policies; others do not.

The practical rule is blunt. If you need to communicate something sensitive with your attorney, do not use TRULINCS. BOP recognizes three channels for genuinely private communication with counsel: unmonitored in-person visits, unmonitored telephone calls, and physical special mail. Email is not one of them.

Delivery Timing and the Log

BOP policy requires that inmate correspondence be processed and delivered within 24 hours of receipt, excluding weekends and holidays. Special mail and legal mail get priority within that window.⁴

If staff cannot deliver special mail within that timeframe, they must document their efforts in a log book and keep recording delivery attempts every 24 hours until the mail is finally delivered.⁴ That log is useful evidence if an inmate later needs to show legal mail was unreasonably delayed.

When Mail Is Rejected

Facility staff can reject correspondence for various reasons, including security concerns or prohibited content. When mail is rejected, the warden must notify both the sender and the inmate in writing, explain the reasons, and inform both parties of the right to appeal. The appeal is reviewed by a different official than the one who made the original decision.⁸

Rejected correspondence is normally returned to the sender. One exception matters: if the letter contains plans for a crime, discusses committing a crime, or contains evidence of criminal activity, the facility does not have to return it or notify anyone of the rejection. That mail goes straight to law enforcement. Contraband found in mail is not returned either.⁸

Postage for Inmates Without Funds

An inmate with no money and no postage can still send legal mail. BOP policy requires facilities to provide up to five first-class stamps per week to indigent inmates specifically for legal mail or administrative remedy filings.⁶

There is a safeguard against abuse. If an inmate empties the commissary account, receives free stamps, and then deposits new money into the account on two separate occasions, the facility can require the inmate to sign a reimbursement form, and commissary staff charge the cost of the stamps against the account once funds are available. The associate warden makes the final call on who qualifies, and an “inmate without funds” is defined as someone whose commissary balance is too low to purchase a single first-class stamp.⁶

Mail Scanning Programs

A growing number of correctional systems have moved toward scanning inmate mail, creating digital copies and delivering photocopies rather than original letters. These programs are generally designed for general correspondence, but legal mail has been caught up in the process. Some systems have scanned legal mail outside the inmate’s presence, raising constitutional concerns about attorney-client confidentiality.

Courts have pushed back. In Rhode Island, the ACLU obtained an injunction in early 2025 to suspend a mail-scanning program after it failed to protect legal mail from being improperly opened and inspected. Connecticut paused its planned mail-scanning rollout in late 2025 over unresolved questions about handling privileged mail. The constitutional principle has not changed: legal mail may be opened and screened for contraband, but only briefly, without reading the contents, and in the inmate’s presence. Whether the mail is handled as a physical letter or a digital scan, that standard applies.

Remedies When Staff Violate the Rules

If a staff member reads an inmate’s special mail, the inmate has several options. The administrative remedy program allows formal review of any issue related to confinement, including mail violations, and facility officials must investigate each request.⁹ Internal investigations can lead to staff discipline.

Beyond internal remedies, 42 U.S.C. § 1983 provides a cause of action for anyone whose constitutional rights are violated by someone acting under government authority. A staff member who reads privileged legal mail may be personally liable for damages in a federal civil rights lawsuit.¹⁰ Damages range from nominal amounts to substantial awards depending on the harm shown. If reading the mail compromised a legal defense strategy or produced tangible consequences in pending litigation, the damages can be significant.

The administrative remedy process is usually required first. Skipping it can get a lawsuit dismissed for failure to exhaust administrative remedies, so documenting the violation and filing the internal complaint promptly matters.

1
eCFR. 28 CFR 540.2 – Definitions
2
eCFR. 28 CFR 540.18 – Special Mail
3
eCFR. 28 CFR 540.19 – Legal Correspondence
4
Federal Bureau of Prisons. Mail Management Manual (Program Statement 5800.16)
5
eCFR. 28 CFR 540.12 – Controls and Procedures
6
Federal Bureau of Prisons. Correspondence (Program Statement 5265.14)
7
eCFR. 28 CFR 540.20 – Inmate Correspondence With Representatives of the News Media
8
eCFR. 28 CFR 540.13 – Notification of Rejections
9
eCFR. 28 CFR Part 542 – Administrative Remedy
10
Office of the Law Revision Counsel. 42 USC 1983 – Civil Action for Deprivation of Rights