# HubSpot Email Integration: Gmail, Outlook, and What Actually Gets Logged

HubSpot email integration connects your Gmail or Outlook inbox to the CRM so email opens, clicks, and replies log automatically against contact records. It works in two layers: a connected inbox that lets you send and track from inside HubSpot, and a sales extension that tracks from your own inbox. Most logging problems trace back to the log-and-track toggle or the never-log list, not the integration itself.

Most email tracking complaints in HubSpot come down to one of two settings. A rep swears their emails aren't logging, or the wrong ones are, and the fix is almost always the never-log list or a missing extension. I've set this up for enough sales teams to know the integration rarely breaks. The configuration is what breaks.

So the useful thing to understand isn't how to connect an inbox. That takes two minutes. It's what logs, what doesn't, and why.

There are two separate connections, and mixing them up is where the confusion starts.

The connected inbox links your personal email to HubSpot so you can send from inside the CRM: from a contact record, from a workflow, or as a sequence step. Replies to those threads log back automatically. This is also what sequences and one-to-one tracked sends run on.

The sales extension is a browser add-on for Gmail or an add-in for Outlook. It doesn't move your sending into HubSpot. It adds Log and Track checkboxes to the compose window in your own inbox, so you can decide per email whether it hits the CRM timeline and whether you get open notifications.

You can run both at once. A connected inbox handles sending and sequences, the extension handles the emails you write directly in Gmail or Outlook.

The connected-inbox step is the same idea for both: you authorize HubSpot to send on your behalf and it starts logging replies. Gmail connects through Google OAuth. Outlook connects through Office 365 or an Exchange connection.

The extension is where they differ:

1. Gmail uses the HubSpot Sales Chrome extension. Install it, sign in, and the Log and Track checkboxes appear at the bottom of the Gmail compose window.

2. Outlook uses the Office 365 add-in (Outlook on the web and new Outlook) or the older Windows desktop add-in. Same checkboxes, different install path.

3. Apple Mail and unsupported clients get no extension at all. For those you fall back to the BCC or forwarding address, covered below.

Shared team inboxes are a different object. Those connect as a conversations inbox, not a personal connected inbox, and they route to a shared workspace rather than one rep's timeline. Don't connect a shared alias as a personal inbox or every teammate's replies land in one person's activity.

Two toggles do different jobs, and people treat them as one. Log writes the email onto the contact's CRM timeline. Track notifies you when the recipient opens the message or clicks a link. You can log without tracking, or track without logging.

Source: HubSpot Knowledge Base, connected inbox and sales extension documentation, 2026.

For clients with no extension, every HubSpot account has a BCC address and a forwarding address. BCC that address on a send and the email logs to the matching contact. It's the reliable fallback when someone works out of Apple Mail or a mobile client the add-in doesn't cover. Our HubSpot integrations overview covers where these inbox connections sit in the wider toolset.

Once an inbox is connected, email stops being a one-off. Templates give reps reusable, tokenized emails they send from the record. Sequences send a series of those templates on a schedule and stop the moment a contact replies, which is why sequences need a connected personal inbox rather than the extension alone.

Tracking is the thread through all of it. A tracked send drops a pixel for opens and rewrites links for clicks, and those events can trigger workflows or notifications. That's the payoff of the integration: the email a rep sends becomes data the CRM can act on. For how that connects to the rest of the record, see our HubSpot CRM integrations guide.

Pro Tip

A tracked email is only as honest as its opens. Image pre-fetching and your own opens both fire the pixel, so treat open rate as a soft signal and clicks as the real one.

Four problems account for most of the support time.

Internal emails not logging. This is the one that fools people. Your own company domain is often on the never-log list, sometimes added automatically, so emails to teammates silently skip the CRM. That's usually correct behavior, but when someone expects an internal thread to log and it doesn't, the never-log list is the first place to check.

Personal emails logging by accident. The mirror image. If a rep leaves Log on by default, their dentist and their landlord end up on a contact timeline. Fix it by tightening the never-log list and turning off default logging.

Duplicate logging. Run the extension and BCC the logging address on the same email and it can log twice. Pick one method per client.

Over-counted opens. Opens fire from image pre-fetching and from the sender's own client. If open rates look too good, they are. Weight clicks over opens. Our HubSpot integration providers and services breakdown covers when a heavier email tool is worth it over the built-in setup.

Does HubSpot work with Outlook and Gmail? Yes. HubSpot connects to both Gmail and Outlook. Gmail connects through Google, and Outlook connects through Office 365 or Exchange for the connected inbox. For per-email logging and tracking from your own inbox, Gmail uses the HubSpot Sales Chrome extension and Outlook uses the Office 365 add-in or the Windows desktop add-in.

Why aren't my emails logging in HubSpot? The most common cause is the never-log list, which often includes your own company domain, so internal emails skip the CRM by design. Other causes are a disabled Log checkbox, a disconnected inbox, or an unsupported email client with no extension installed. Check the never-log list first, then confirm the inbox connection and the Log toggle.

What's the difference between connected inbox and the sales extension? A connected inbox links your email to HubSpot so you can send and run sequences from inside the CRM, and replies log automatically. The sales extension is a browser add-on or Outlook add-in that adds Log and Track checkboxes to your own inbox so you decide per email what logs. Many teams use both together.

Can HubSpot track email opens? Yes, when Track is enabled on a send. HubSpot adds a tracking pixel for opens and rewrites links to record clicks, then notifies the sender and can trigger workflows. Treat opens as a soft signal, because image pre-fetching and the sender's own opens can inflate the count. Clicks are the more reliable measure.

About the author. Sunny Chauhan is the founder of appnigma.ai, where we build native Salesforce apps and integrations without glue code: direct, observable connections instead of a stack of hand-maintained callouts. He's a Salesforce-certified Platform Developer II who spent the better part of a decade building integrations and managed packages, including work at Zennify and Salesforce, before founding appnigma. Configuration, not connection, is where most CRM email setups go wrong, which is why the never-log list gets checked first on every rollout.

What's the first thing you check when a rep says their emails aren't logging: the toggle, the extension, or the never-log list?

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