Postman Guide
Go to Postman v1
  • 🥳About Postman v1 (Postman Legacy)
  • Campaign Guide - General
    • 🚀How to send a campaign?
      • ☝️Before You Start
        • Demo Mode
  • Campaign Guide - Email
    • 📧Email Campaigns - Basics
      • How do I send an email campaign?
      • Scheduled Sending
      • Bounced Emails and Halted Campaigns
      • Email Statistics
      • Formatting your Message Template
      • Variable Fields
      • Unique URL Link per Recipient
      • Pasting Content from Microsoft Word
      • Manage your Unsubscriptions
      • Understanding Unsubscriptions
    • 🔐Sending Password-Protected Emails
      • Tutorial
      • Template Editor
  • Campaign Guide - SMS
    • 📲SMS Campaigns - Basics
      • Before Starting Out
      • Summary of Costs
    • 🪜SMS Onboarding Overview
      • Step 1: Sender ID Registration
      • Step 2: Sign up for a Twilio account
      • Step 3: Set up your Twilio account
      • Step 4: Configure Your Twilio Account
        • What if I need to buy a phone number?
      • Step 5: Send a Test Message on Twilio
      • Step 6: Fill in your Twilio credentials in Postman!
        • How do I send a campaign with my saved SMS credentials?
    • 🤔What else do I need to know about sending SMSes?
      • More about Sender ID registration
      • Can I see the send status of my campaign?
      • How can I configure my SMS send rate?
      • Sending an SMS to a Foreign Number
      • SMS Best Practices
      • Useful Twilio Links
  • Campaign Guide - Telegram
    • 🤖Telegram Campaigns - Basics
      • How do I set up Telegram to send my campaigns?
      • Add Telegram Bot Token in Postman
      • Instructions for Recipient Onboarding
      • Use the Bot in the Campaign
      • Telegram Formatting
      • Telegram Bot Statistics
  • Email API Guide
    • 📖Overview
      • IM8 Policies
      • Connecting your Intranet Application
      • API Response Formats
    • 🗝️Email API Key Management
      • Bearer Authentication
      • Generate your email API Key
      • Rotate your email API Key
    • 📨Programmatic Email API
      • Getting Started
      • Comparison with AMR
      • SG-Mail Whitelisting
      • Custom From Address
      • Tracking Email Status
      • Send Email API
        • From Name and From Address
        • CC and BCC
        • Recipient Blacklist
        • Email Tagging and Classification
        • Email Body
          • Embedding Images
            • Linked Images
            • Content-ID Images
        • Attachments
        • Rate Limit
      • Get Email by ID API
      • List Emails API
    • 📨Programmatic GovSG WhatsApp API
      • Getting Started
      • Tracking Message Status
      • Get Available Templates API
      • Send Message API
      • Get Message by ID API
      • List Messages API
    • 🎓Frequently Asked Questions
  • FAQ
    • 📶Service Status
    • For Recipients
      • Check Email Authenticity
    • For Senders
      • Messaging Channel Comparison
      • Cost Breakdown
  • Legal
    • Terms & Conditions
    • Privacy Policy
  • Contact Us
  • GitHub
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On this page
  • Troubleshooting Errors
  • I have checked my CSV file many times but I cannot find the mistake and I keep getting an error for invalid recipient.
  • Browser Compatibility
  • Credentials
  • Can I see what Postman has before entering a credential?
  • How would I know that my credentials are working?
  • I don’t know how to find credentials in my Twilio console!
  • Features
  • We want to manage subscriptions like MCI. Is Postman going to support this?
  • We want an audit function so we can check the SMS sent timestamp.
  • Miscellaneous
  • Do you offer Whatsapp as a channel? Any plans to do so?
  • Why don’t you support collaborator mode?
  • Billing
  • How much does Postman cost?
  • How does Twilio charge my agency?
  • The procurement process for Twilio
  • What is the estimated cost of implementing Postman's solution?

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  1. FAQ

For Senders

Troubleshooting Errors

I have checked my CSV file many times but I cannot find the mistake and I keep getting an error for invalid recipient.

Common typos in the recipient field include spaces and symbols.

After you have sent the campaign, we will also provide the list of email addresses that bounced under statistics.

Browser Compatibility

We only support Chrome, Firefox, Samsung Internet, the latest Microsoft Edge, and IE 11 at the moment.

Credentials

Can I see what Postman has before entering a credential?

If you are checking out Postman, you can go through most of the steps before we ask you to enter a credential. This is so that the public officers can learn how to navigate the user interface first before initiating the necessary paperwork for procuring a Twilio account. Without the credentials, we are not able to send the SMS messages.

How would I know that my credentials are working?

Before you send an SMS or Telegram message to citizens, you will be asked to enter your credentials and send a message to yourself to test the credentials. We recommend that you log onto Twilio console so that you can copy and paste in the credentials when prompted.

I don’t know how to find credentials in my Twilio console!

Features

We want to manage subscriptions like MCI. Is Postman going to support this?

Subscription is currently not in the scope of Postman. It will likely be part of other productivity products under OGP.

We want an audit function so we can check the SMS sent timestamp.

You can check the overall campaign sent status and timestamp on your Postman dashboard after your SMS campaign has been sent. You can also download the delivery report, which provides more details on individual recipients' sent status and timestamps.

Alternatively, you can log in to your Twilio console and search for the relevant phone number. Your agency is the only one that can check through your Twilio account. We will not be able to access it.

Miscellaneous

Do you offer Whatsapp as a channel? Any plans to do so?

Why don’t you support collaborator mode?

Messages sent to the public are usually governed by the communications teams within an agency. We recommend that you contact your communications team before setting up Postman so that the agency is clear on what is sent to the citizens. You can create a common email account or mailing list so that your teammates can see what has been sent out to the public. Postman is a productivity tool and we believe that the governance of the tool should fall under the purview of the agency.

Billing

How much does Postman cost?

Postman does not charge any agencies for using our email service, however, if you are sending SMS using Twilio through Postman, Twilio will charge.

How does Twilio charge my agency?

The procurement process for Twilio

What is the estimated cost of implementing Postman's solution?

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Last updated 1 year ago

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Not to worry! Go to for more information.

Yes, Whatsapp is in the pipeline. However, do let us know on our if you have a use case to help us understand how you intend to use it.

Depending on your usage, Twilio has a few different plans. If you do pay-as-you-go, you only need a corporate credit card on file. It works like a prepaid mobile plan. You top-up certain amounts of money every month and deplete the account as you send SMS. Post-paid mobile plans require you to contact Twilio’s rep and initiate a procurement process that adheres to IM8 guidelines. You can go to to find out more.

Please go to Workplace and log in using your gov email address to see the full .

Please go to .

Getting Started - SMS & Twilio
feature request form
SMS & Twilio
content
Cost Breakdown