How can I verify my email sending domain?

Last updated: May 11, 2017

Marketing Hub Professional, Enterprise

Applies to:

Marketing Hub
Professional, Enterprise
Legacy Marketing Hub Basic
HubSpot CMS

In HubSpot, you can add an email sending domain for DKIM (Domain Keys Identified Mail) email authentication, which is used to verify a sender's identity. Part of this process involves your domain host validating the email domain. You can verify that the TXT (Text) record has been connected successfully using a public query tool. 

Please note: you do not need to set up an email sending domain in your HubSpot account if you are using a HubSpot Dedicated IP for email. This feature is only used for HubSpot accounts using a shared IP.

To verify your email sending domain to make sure it has been set up properly, please follow the steps below:

  • Navigate to
  • In the Domain Name box, enter your domain (i.e. 
  • In the Selector box, enter "smtpapi"

  • Click DKIM Lookup.

  • In the green box, you should see a value that matches the TXT Record Value provided by the HubSpot domain manager as seen here.