HubSpot plugin for Outlook: which version you need and how to get it working

The HubSpot plugin for Outlook should be simple: install it, connect your inbox, and your emails show up neatly in your CRM. In practice, it is the integration we get the most questions about. Not because the plugin is bad, but because two different versions exist, Microsoft is rebuilding Outlook itself at the same time, and the combination of those two causes confusion. This article lays out which HubSpot plugin you need in Outlook, how to install it and where it stops fitting.

Two plugins, one right choice

HubSpot offers two variants for Outlook. The old desktop add-in is a program you install locally in Outlook for Windows. That version is officially in maintenance mode: HubSpot no longer develops it and advises against it themselves. The newer variant is the Office 365 add-in, a web add-in that lives in your Microsoft account rather than on your computer. It works in Outlook on Windows, Mac, in the browser and in the new Outlook for Windows. Unless you run a legacy Outlook version that cannot do otherwise, the Office 365 add-in is the only right choice. And importantly: never install both on the same machine, because they conflict with each other.

What you need before you start

• A mailbox hosted on Microsoft 365. If your email runs with another provider, you cannot install the Office 365 add-in.
• An Outlook version that supports add-ins. The Outlook app from the Microsoft Store does not qualify, for example; the Click-to-Run installation of Microsoft 365 does.
• A HubSpot account with a connected inbox. As with Gmail, the plugin is only the front desk; the connection between your mailbox and HubSpot has to be enabled separately for logging to work.
• For a team-wide rollout: access to the Microsoft 365 admin center, so an administrator can push the add-in to all users centrally instead of having everyone install it themselves.

Installing the HubSpot plugin in Outlook

For an individual user: open Outlook, go to the add-ins menu, search for HubSpot Sales and add it. Then sign in with your HubSpot account and connect your inbox if that has not happened yet. For a team, the route through the Microsoft 365 admin center is better: the administrator assigns the add-in to everyone, and it appears in every Outlook automatically. That prevents the familiar pattern where half the team has the plugin, the other half does not, and the conversation history in the CRM is full of holes.

What it can do, and the quirk that surprises everyone

The features largely match what the extension does in Gmail: track and log emails on the contact record, insert templates, share meeting links and view the HubSpot contact in a side panel next to the open email. But there is one quirk that catches almost everyone once: the side panel has to be open at the moment you send a logged or tracked email. Send with the panel collapsed and nothing gets recorded. You can pin the panel so it is always open, and for most teams that is the first setting to sort out.

Where the plugin falls short in practice

• Tracking relies on an invisible pixel. Strict email clients and privacy filters make open statistics less reliable than they look.
• One personal mailbox per user; shared mailboxes like sales@ or support@ cannot simply be connected.
• More advanced features such as sequences require a paid Sales Hub plan, and that price scales per seat.
• With every major Outlook update, it is a matter of waiting to see whether the add-in keeps up. The history of the retired desktop add-in shows that HubSpot follows Microsoft's pace, not the other way around.
• Under the GDPR, you may only record opens of individual contacts with a valid legal basis for processing, so the privacy settings in HubSpot are not an optional extra.

Does part of your team use Gmail? They have a story of their own, with a Chrome extension instead of an add-in. We covered that separately in our article on the HubSpot Gmail extension.

When a custom CRM is the better route

A plugin that ties your mailbox to an off-the-shelf CRM is a fine starting point. It starts to chafe once you notice your way of working has to bend to the tool instead of the other way around: pipelines that almost fit but not quite, fields you have nowhere to put, reports you rebuild in Excel outside HubSpot, and a subscription that grows with your team while your usage does not. At that point, a custom CRM is worth taking seriously: a system built around your process, with an Outlook or Microsoft 365 connection as a built-in API integration instead of a plugin that has to be configured correctly per user. Your email then logs centrally, including from phones and shared mailboxes, and no seat price is added with every new colleague.

A CRM should adapt to the way you work, not the other way around.

How Datagrove helps

Datagrove is a development agency in Amsterdam. We build platforms, integrations and custom CRM systems for SMBs and scale-ups. For teams staying on HubSpot, we set up the Outlook plugin properly: the right add-in version, central rollout through the Microsoft 365 admin center, logging settings that are correct and a clean GDPR configuration. And for teams outgrowing it, we build a custom CRM with the Microsoft 365 integration built in, and migrate the existing data and conversation history along with it.

Struggling to get the HubSpot plugin working reliably in Outlook for your team, or wondering whether HubSpot still fits? Schedule a no-obligation call. Tell us how you work today and we will tell you honestly what the shortest route is.