This issue is caused by an Internet Explorer configuration that is blocking the login. Please follow the troubleshooting steps found in this guide on the HubSpot Academy: https://knowledge.hubspot.com/articles/kcs_article/email-tracking/what-should-i-do-if-login-is-unavailable-for-hubspot-sales-in-outlook
Commenting to mark as answered.
Does this mean that the only way I can get HubSpot to interface with Outlook is to permanently turn my IE security to “Low”? I am trying out your product and that seems like deal breaker.
To be clear, I am currentlyhaving the same problem on the latest version of Outlook (365). Looking for a solution.
I’ve now tried this and I still get the same message. Please advise.