# FAQ

- [Service Status](https://postman-v1.guides.gov.sg/faq/postman-uptime.md): Have questions about Postman's uptime? We aim to maintain uptime of >99.5%.
- [For Recipients](https://postman-v1.guides.gov.sg/faq/faq-recipients.md): You might be receiving emails from Postman from various government agencies. Our email address is donotreply@mail.postman.gov.sg.
- [Check Email Authenticity](https://postman-v1.guides.gov.sg/faq/faq-recipients/check-email-authenticity.md): This is what you could to do see if the email is coming from Postman.
- [For Senders](https://postman-v1.guides.gov.sg/faq/faq-sender.md)
- [Messaging Channel Comparison](https://postman-v1.guides.gov.sg/faq/faq-sender/messaging-channel-comparison.md): Here is a comparison between the various messaging channels.
- [Cost Breakdown](https://postman-v1.guides.gov.sg/faq/faq-sender/cost-breakdown.md): Postman does not charge the user. Sending emails are free. Sending SMS depends on Twilio's SMS pricing and the recipient's country code. Sending Telegram bot messages are free.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://postman-v1.guides.gov.sg/faq.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.