> For the complete documentation index, see [llms.txt](https://postman-v1.guides.gov.sg/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://postman-v1.guides.gov.sg/faq/faq-recipients/check-email-authenticity.md).

# Check Email Authenticity

This is what you could to do see if the email is coming from Postman.

If you are not sure about the authenticity of the email you received from Postman, you can check your email header.

## Outlook

If you are using Outlook, you can go to **File > Properties > Internet headers.**

![](https://4126954886-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MAQH3DF49Lq0AJudrbF%2Fuploads%2Fgit-blob-0ba64cb09a879445212cbf394f4724c53e3bb604%2Fpostman-prop-file.png?alt=media)

![](https://4126954886-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MAQH3DF49Lq0AJudrbF%2Fuploads%2Fgit-blob-daf1d79acffc0a2421c6cf3ca545f7a1f88886bc%2Fpostman-prop-header.png?alt=media)

What you want to see is the part of the header that shows the **authentication results**. You should be able to find something like this (see below).

{% hint style="success" %}
**Authentication-Results**:\
spf=**pass** smtp.mailfrom=<`someuniquemessageid`>[@mail.postman.gov.sg](mailto:010001732fa75c8d-6f7b6c04-ec03-4b1e-820b-9bf34a69d10c-000000@mail.postman.gov.sg);\
dkim=**pass** (signature verified) header.i=@[mail.postman.gov.sg](http://mail.postman.gov.sg/);\
dmarc=**pass** (p=none dis=none) d=[postman.gov.sg](http://postman.gov.sg/)
{% endhint %}

## Gmail

In Gmail, you need to go to **show original** to check the SPF, DKIM, and DMARC records.

![](https://4126954886-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MAQH3DF49Lq0AJudrbF%2Fuploads%2Fgit-blob-2ae019338a5a0ee8ed774b2a6cee23abaf666a80%2Fpostman-spf-check-header-gmail.png?alt=media)

![Make sure that SPF, DKIM, and DMARC are all 'PASS'](https://4126954886-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MAQH3DF49Lq0AJudrbF%2Fuploads%2Fgit-blob-a19ab7a359cb0c348a727fcf0cf468e3f0ab9d5c%2Fpostman-spf-check-gmail.png?alt=media)