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Understand HubSpot email tracking and logging

Last updated: March 15, 2024

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When you send a marketing email or a tracked one-to-one email from your email inbox using the HubSpot Sales Chrome extension, HubSpot Sales Office 365 add-in, or HubSpot Sales Outlook desktop add-in, or if you send a one-to-one email from a record, HubSpot will track email opens. If you're a user with an assigned Sales Hub paid seat, HubSpot will also track when the recipient clicks a link in the email.

Please note: some email clients may be configured to prevent HubSpot's open tracking pixel from loading. When the open tracking pixel fails to load, HubSpot cannot report on associated open tracking for that email. If a recipient opens one of your emails then clicks an email link or replies to the email itself, HubSpot can infer they opened the email and will retroactively report the open event.

Differences between email tracking and logging

Email tracking and logging are two related but distinct features for managing and measuring how contacts engaged with your emails:

  • Track: use the track feature to monitor when contacts open your emails. To track emails, HubSpot inserts an invisible one-pixel image into the email after it is sent.


  • Log: use the log feature to log a copy of an email to a record in HubSpot.
    • Any attachments included in the email will also log to the contact's record. Log your emails to keep a record of past communication. Logged one-to-one emails do not give you insight into open or click information.
    • Marketing emails sent to a contact will appear on a contact record automatically, and if you've turned on tracking in your marketing email settings, you can also review the email's engagement metrics such as opens or clicks.


You can send a one-to-one email that is both tracked and logged. That way, you'll receive open notifications as well as having a record of the email communication in HubSpot. If you installed the HubSpot Sales Chrome extension for Gmail, HubSpot Sales Office 365 add-in, or the HubSpot Sales Outlook desktop add-in, you can also set logging and tracking defaults for your extension.

Email open tracking

Please note: if you've turned on data privacy settings in your account, email opens can only be tracked for contacts with an assigned legal basis for data processing. Learn more about how data privacy impacts email tracking with the Chrome or Office 365 extension.

When you send a marketing email, or a tracked sales email, HubSpot embeds an invisible one-pixel image into the email message once it is sent. When your recipient views the email and the images load, you will receive a notification that the email has been opened.

If the recipient's email client doesn't allow the track pixel to load, HubSpot will not be able to track the email open. HubSpot tracking can be deactivated in the following situations:

  • The recipient formats their email in plain text.
  • The recipient's email client doesn't automatically download images.
  • The recipient's corporate filter strips away all images for incoming emails.

If the recipient has a very strict spam filter where they block any images or link tracking from loading in emails, your tracked email could be filtered as spam. However, email tracking tools are common, and the majority of email clients will not view your email any differently than before.

If you don't want to track one-to-one emails, learn how to disable email tracking for all users in your account.

Please note: it's not possible to see whether a tracked email was forwarded to another recipient.

In some cases, if you open the email in your sent folder, you may trigger a self-open notification. Learn how to block self-open notifications for the Chrome extension and Outlook desktop add-in

Why am I getting multiple email opens for a specific tracked email?

If you receive more email open notifications than expected for a specific tracked email, it may indicate that the email was forwarded or that you copied and pasted a previously sent email. Because of privacy and security concerns, when an email is forwarded, HubSpot defaults to telling you that the original sender opened the email again.

If you copied and pasted an email that you previously had sent, you also copy the original tracking pixel. The same tracking pixel would load for each recipient. It is recommended to send personalized emails, which you can create from scratch in the CRM or your mail client, or to use sales email templates.

Sometimes, a single tracking image will load multiple times because of how the recipient views their emails. For example, a user could be on a server that dynamically changes that user's IP address. If the image is loaded from multiple IP addresses, then the notifications may indicate that your emails were opened by multiple people.

Also, email clients like Outlook or Apple Mail have a preview pane as part of the inbox view. If recipients scroll over your email in their inbox, this can trigger an email open notification.

What if I'm getting a 'Someone' notification?

You may see a 'Someone' notification if one of the following occurs:

  1. If you send a tracked email to multiple email addresses (including CC and BCC), they all receive the same HubSpot Sales tracking image. HubSpot will still notify you of the email open, but HubSpot may not be able to determine which recipient opened the email.
  2. If you have data privacy settings turned on in your HubSpot account and a contact does not have a lawful basis for data processing, HubSpot Sales will track emails you send to that contact, but the notifications will be anonymous. The Recent sales email open date, Recent sales email clicked date, and Last engagement date properties will also not be updated.

Please note: when you receive a 'Someone' notification for an email open or click, HubSpot cannot attribute the corresponding email activity to a specific recipient, so it will not appear in any email activity reporting (e.g., a custom report).

Email click tracking

Email clicks can be tracked for both marketing emails and tracked one-to-one emails. The behavior and configuration of link tracking depends on the type of email you're sending.

Marketing email clicks

You can turn on link tracking for your marketing emails on the Tracking tab of your marketing email settings. If you've purchased the Business Units add-on, you can also manage the domain of the tracked links in your emails. Learn more about configuring your marketing email click tracking settings in this article.

One-to-one email clicks (Sales Hub Starter, Professional, and Enterprise only)

If you have an assigned Sales Hub paid seat and you send a tracked email from your email client or from a record, you can track clicks on links included in the body of the email. Links are tracked by appending tracking to the end of any hyperlink included in your email. You can see click and open information in your HubSpot activity feed.

Links will appear in the following format in the email the contact receives: http://[xx].na1.hs-sales-engage[xx].com/...

The temporary redirection to the [xx] domain is necessary for HubSpot to register and track link clicks. The link will automatically redirect to the final URL destination (e.g. when clicked.

Please note:

  • Only hyperlinked, non-URL text will be tracked. For example, tracking will not occur if you type out Even if the text is hyperlinked to, clicks on the link will not be tracked. 
  • Clicks cannot be tracked in plain text emails.


View examples below of what a tracked link should look like in different email clients and in HubSpot:





(Record in HubSpot)

If you want to test link tracking, click the link from an email client and browser that does not have the HubSpot Sales extension installed; otherwise, the click notification may be suppressed. This prevents any notifications triggered by clicks on your own links, but this does not apply to other recipients of your email who may have HubSpot Sales installed.

If you're not receiving any open or click notifications when sending a tracked email from your email inbox, learn how to troubleshoot tracking issues with your extension:

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