Let's discuss the sunset of the Microsoft VSTO email extension

Following. This significantly impacts our work.

I continually am receiving “Something went wrong” when trying to add the hubspot sales add-in, and we cannot identify any issue or permission that would prevent this add-in from being installed. Need help.

I am using the new hubspot plugin for the new outlook. However it keeps logging out, and unlike the VSTO for old Outlook, there is no pop-up to tell you to log in to hubspot when you create a new email. This is very frustrating as we are losing the record of loads of emails that we are sending.

As a workaround I’m pinning the hubspot sales side panel so that its alwasy visible but this takes up valuable screen space so would rather it just worked like it did before please

Thanks for sharing your experience, @GarethMurphy. I do apologize for any frustration this change has caused. A similar thread related to the extension regularly logging out has some resources about a recent SSO update and a feedback form if you would like to take a look!

Best,

Kennedy

“The transition from the Microsoft VSTO email extension to the new HubSpot plugin comes with some challenges, especially with automatic login prompts. It’s similar to how Ilford property management requires seamless systems to track tenant interactions efficiently. A more intuitive login reminder or persistent session could improve usability. Hopefully, HubSpot addresses this soon to prevent lost email records and enhance workflow efficiency.”

What is Microsoft VSTO and how do I even know if we’re using it at this point? I’m the HubSpot Admin for our company, and have managed a number of the integrations, and Microsoft never makes things easy with their naming conventions!

Any updates in 2025? My team is extremely dissapointed at this point (the company uses a combination of the GMail service & Outlook Windows App [not 365]).

This has been such a huge pain for my organization. Most of our users use the Outlook desktop app and now with this gone, their emails aren’t logging from the web-version because there’s constantly an issue with it, whether that’s being logged out constantly or other similar situations.

Can HubSpot work with Microsoft to exapand this to the desktop app again? This is not a helpful alternative for my org (and many others as I’m seeing in these comments).