How can I verify my Email Sending Domain?

Last updated: December 13, 2016

Available For:

Product: HubSpot Marketing
Subscription: Basic, Professional, & Enterprise

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, follow the steps below:

  • Navigate to
  • In the Hostnames or IP addresses box, we'll check the SMTPAPI email sending domain for So we'll enter "" (So, if your website is "" you can check your email sending domain by typing in "".)
  • Click the dropdown menu under Type > choose TXT. 
  • Click Dig to look at the TXT record for your email sending domain.
  • The bottom will show the value of the "" TXT record. This will contain a long string of characters that mirror the TXT record value provided to you from HubSpot (as seen here.) 

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