SPS E-Letter Login: How to Access and Send Messages

Staying connected with a loved one in prison used to mean weeks of waiting for mail to arrive. Singapore Prison Service changed that with e-Letters, a digital portal that lets approved senders deliver messages directly—and securely—to inmates in days instead of weeks. If you’re new to the system, the login process might look intimidating at first, but it takes under ten minutes once you know where to go.

Official Provider: Singapore Prison Service (SPS) · Access Portal: eservice.sps.gov.sg · Legacy Users Note: Pre-02 July 2020 registrations unchanged · Key Feature: DIRECT secure communication

What is E letter SPS?

The Prison Service e-Letter system is Singapore’s official digital channel for written communication between inmates and approved contacts outside. Run by the Singapore Prison Service (SPS), the portal replaces much of the traditional paper mail while maintaining the same security protocols that govern prison correspondence.

Approved senders—typically family members, friends, or legal representatives—register on the portal, add the inmate as a contact, and submit messages digitally. The Singapore Prison Service then screens each message before delivering it to the inmate. Replies follow the same path in reverse: the inmate writes, staff scan, and the response appears in your inbox.

The system connects to DIRECT (Digitalisation of Inmate Rehabilitation and Corrections Tool), which means inmates since January 2022 view incoming letters on electronic tablets rather than receiving printed copies. This applies to letters, postcards, and greeting cards sent through the e-Letter portal.

DIRECT e letter explained

DIRECT is the tablet-based system inmates use inside Singapore prisons. When an e-letter passes security screening, staff load it onto the inmate’s DIRECT tablet instead of printing a physical copy. The inmate reads it on screen, and any reply gets scanned back to the sender digitally.

Singapore Prison Service emphasizes that hardcopies ceased for DIRECT users from January 2022—this includes not just e-letters but postcards and greeting cards as well. If you’re sending a message expecting a physical keepsake in return, that’s no longer how the system works.

“From January 2022, inmates are able to view their incoming letters, postcards and greeting cards on their DIRECT electronic tablets. Hence, they no longer receive hardcopies.”

— Singapore Prison Service, Official Website

How to login to SPS e-letter?

Login is available two ways: through SingPass (the government’s digital identity system) or with a standalone account you create on the portal itself. Singapore Prison Service encourages SingPass for new users because it removes the need to remember yet another password.

Steps for new and existing users

For SingPass users: visit eservice.sps.gov.sg, click the SingPass option, and authenticate through the government portal. You’ll be redirected back with your identity confirmed.

For non-SingPass users: click “Register” on the login page, provide your name, email, and a password. You’ll also set a security question during registration—SPS stores this to verify your identity if you forget credentials later.

Existing users who registered before 02 July 2020 should use their original login credentials. The Singapore Prison Service has not required these accounts to migrate to the SingPass system, so your legacy username and password still work.

• Visit eservice.sps.gov.sg
• Choose SingPass (preferred) or click Register for a new account
• Complete authentication or registration steps
• Add inmate as contact before sending your first e-letter

“Note: it is encouraged to use your SingPass (if available) to login instead of registering a new account with us.”

— SPS e-Letters FAQ, Official Guide

Troubleshooting login issues

If you cannot log in despite entering correct credentials, the SPS e-Letters FAQ recommends submitting an error report through the Online Feedback Form on the portal. Include the specific error message you receive—Singapore Prison Service’s support team uses this to diagnose login failures.

For non-SingPass accounts, password recovery requires your Login ID, a captcha verification, and your security question answer. Submitting these correctly triggers a reset link to your registered email address.

What is E letter format?

SPS e-Letters have formatting rules designed to work with the digital screening system. Messages must be plain text—no special characters, no emoji, and no formatted text like bold or underline. Anything outside these parameters risks a failed submission.

Required content guidelines

Your message should focus on personal communication. Approved senders include family members, friends, and legal representatives who have completed the security check and registered on the portal. Content must not include threats, hate speech, or material that could compromise prison security—broad categories that Singapore Prison Service evaluates on a case-by-case basis.

Screening applies to both incoming and outgoing correspondence. Security staff review e-letters before delivery, which is why the processing time for both directions can reach up to 10 days, according to the SPS e-Letter Official Page.

Attachment rules

The system does not support file attachments through the standard e-letter portal. If you need to send documents to an inmate, you’ll need to check whether physical mail or an alternative channel applies to your situation—Singapore Prison Service handles attachments separately from the e-letter system.

How many E letters can inmate send?

Inmates can send one e-letter per recipient per day. This limit applies regardless of how many approved contacts are registered—the daily cap is per sender-inmate pair, not a total count.

Inmate sending limits

Singapore Prison Service sets the one-per-day-per-inmate rule to manage the administrative load on DIRECT tablets and screening staff. If an inmate has three approved contacts, they can send one message to each person in a single day (three total), but cannot send multiple messages to the same person that day.

Recipient guidelines

Recipients must be registered and approved as contacts before any e-letter exchange can occur. The contact request process requires the sender to add the inmate using their inmate number—SingPass users need only the number, while non-SingPass users also need the inmate’s name.

Once you submit a contact request, the inmate has 10 days to accept. If no response arrives within that window, the request expires—SPS recommends resending to alert the inmate. After acceptance, you must wait one calendar day before you can write your first e-letter.

E letter for inmates Singapore?

For families and friends in Singapore, the e-letter system offers a practical alternative to waiting for physical mail. Letters arrive digitally after screening, and responses come back the same way—no post office visits, no stamps, no guessing when a message might arrive.

Sending process

After logging in and adding an inmate as contact, composing an e-letter follows these steps: click “Write” in the portal, select the inmate recipient, enter your message (plain text only), and submit. You’ll receive confirmation that the message entered screening.

A unique Letter Reference ID appears on each e-letter you send or receive. Note this ID if you need to follow up with Singapore Prison Service about a specific message—the reference makes inquiry handling faster.

Integration with visits

e-Letters run parallel to visit bookings but don’t replace them. Face-to-face visits remain separate, booked through SingPass, kiosks at Prison Link Centres, or the hotline. For tele-visits, register 15-30 minutes early; for face-to-face sessions, arrive 30-45 minutes before your slot.

Kiosk hours on Saturdays run 8am to 4pm if you prefer in-person booking over the online portal. The e-letter system does not affect visit scheduling—these remain independent channels.

“Security screening takes up to 10 days for both outgoing and incoming e-letters.”

— SPS e-Letter Official Page