---
title: "Verifying your Opensense DNS records"
slug: "how-to-check-your-dns-records"
description: "Check that your Opensense CNAME and SPF records are in place with Google Admin Toolbox Dig or the dig command, and what the results should show."
updated: 2025-09-08T19:36:03.000Z
canonical: "https://help.opensense.com/docs/how-to-check-your-dns-records"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.opensense.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Verifying your Opensense DNS records

## Overview

To make sure your email authentication records are configured correctly, check your CNAME, SPF, DKIM, and DMARC DNS records. This article shows how for the two records that Opensense requires: the CNAME record, and the SPF record.

:::caution[Use your own domain]
Replace **customer.com** with your domain name.
:::


## Choose a tool

The [Google Admin Toolbox Dig](https://toolbox.googleapps.com/apps/dig/) is a quick, browser-based way to check DNS records. Or run the `dig` command directly from your terminal or command line, for example `dig CNAME smart.customer.com` or `dig TXT customer.com`.


## Check the CNAME record

1. In Google Dig, select **CNAME**.
2. In **Name**, enter your custom record (`smart.customer.com`).

The expected result (**TARGET**) is:

```plaintext
whs.sendergen.com
```

![Google Admin Toolbox Dig with the CNAME record type selected for smart.opensense.com, showing the target whs.sendergen.com](https://help.opensense.com/media/screenshot-202025-09-08-20at-2012-20-22-e2-80-afpm-87c3504a8e36.jpg)


## Check the SPF record

1. In Google Dig, select **TXT**.
2. In **Name**, enter your domain.

The record **always begins with** `v=spf1`, and must include Opensense:

```plaintext
v=spf1 include:_spf.sendergen.com
```

The rest of the entries (for example, `include:`, `ip4:`, or `-all`) **may look different, depending on your organization's configuration**.

![Google Admin Toolbox Dig with the TXT record type selected, showing an SPF value that includes spf.protection.outlook.com and _spf.sendergen.com](https://help.opensense.com/media/image-1757355051121-41db1bf5fcf1.png)


## What's next

- [Required DNS settings for Opensense](https://help.opensense.com/docs/dns-entries-must-have): what the records should contain.
- [Setting up the Opensense CNAME in Cloudflare](https://help.opensense.com/docs/cname-cloudflare-proxy-settings)

For further help, contact Opensense Support at [help@opensense.com](mailto:help@opensense.com).