Postman is a simple, secure messaging system for government agencies and officers to send official communications to members of the public by SMS or email. Emphasising legitimacy, reliability, and accessibility, Postman caters to the government’s diverse communication needs, while serving as a trusted way for the public to receive official messages.
Active
We're adding resources to these products to build better features.
Since 2019
Built for public officers
Updates
Q2 2025 Apr-Jun
Released Billing for agencies
Completed Usability Research for tackling GOIS via calls
Released a soft phone app for SPF Trials
Added 8182 sender ids to the SSIR blacklist
OCHA implementation for Apple and Google
Commenced CSA red teaming of SMS infrastructure
Support Major SG60 initiatives
Q1 2025 Jan-Mar
Improved system monitoring and alerts for better reliability
Created Campaign Calender for better monitoring of upcoming major campaigns
Moved 53 Agency Sender IDs to the blacklist to prevent spoofing
Reduced Support tickets by 60% through better training and guides
Created 5 prototypes and started Calls Trials to find the best solution to solve GOIS via calls
Q4 2024 Oct-Dec
Improved system monitoring and alerts for better reliability
Exploring additional features to improve reliability such as in-app message prioritization, error reconcilation, and end-to-end testing
Released features to increase accountability of Agency Persons-in-Charge and better campaign management such as Campaign Deletion and Message Privacy
Rolled out Billing for Agencies
Exploratory work for to come up with a solution for Government Impersonation via Calls
Research into potential new attack vectors via iMessage and RCS (Rich Communication Services)
Q3 2024 Jul-Sep
Improved system monitoring and alerts for better reliability
Enhanced security measures to prevent hacks and malicious user abuse
New features to increase accountability of Agency Persons-in-Charge (PICs)
Research into potential new attack vectors via iMessage and RCS (Rich Communication Services)
Q2 2024 Apr-Jun
Whole Of Government started using Postman, this includes 117 Agencies and 19.5k Users
Completed system intergration with 360 systems across 60 agencies
Worked with our 2 appointed SMS Aggregators and 4 Telcos to roll out a new secured channel to ensure all “gov.sg” SMSes cannot be compromised by the current SMS infrastrucutre loopholes.
Added a piority queue and intergated with our 2nd appointed aggregator to allow Postman to better piroitize and manage our SMS traffic
Implemented more fine grained access controls
Q1 2024 Jan-Mar
Continued integration with 60 agencies to allow government officers to send messages using their existing systems.
Onboarded 95.7% (66 of 69) of agencies that need to send SMSes, through a series of briefings.
Tightened SMS infrastructure to protect government Sender IDs, to combat Government Impersonation scams.
Q4 2023 Oct-Dec
Rebuilt Postman v2 from scratch that would enable Whole of Government to meet the BTN Mandate that involves sending out Government SMS
Onboarded BTN Ops team with 16 persons to enable Postman onboarding
Launched API docs for agencies to start intergration
Q3 2023 Jul-Sep
Completed 7 trials for Government WhatsApp - ICA, CNB, MOH, MSF, MAS, AIC, MOM. Trusted Messages were from Govt - 4/5, Confidence that Caller is from Govt - 4/5
Developed prototype to test Government SMS, Message Inbox concept and scam quiz, site
Postman V1 maintence work to ensure all users and system are able to send out messages
Q2 2023 Apr-Jun
Email inline attachments: Allowing users to attach files in the content of email campaigns
Migrating our email sending servers to Singapore to ensure 100% compliance with IM8 policies
Improved API interface for better development experience
Q1 2023 Jan-Mar
API endpoints for SMS transactional message status retrieval
Multiple API key management to allow for better security practices
Q4 2022 Oct-Dec
Campaign scheduling - allowing users to schedule when their campaigns will be sent out at future dates
List management: Allowing users to persist their recipient lists for usage in future campaigns
API endpoints for Email transactional message status retrieval