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HubSpot Sales for Outlook error: 'We're very sorry, but login is unavailable...'

Last updated: November 20, 2018


When attempting to sign into your HubSpot Sales extension in Outlook on desktop, you may see a login is unavailable at this time error. This error is caused by an Internet Explorer configuration that is blocking the login.

Please note: these steps apply to the HubSpot Sales Outlook plugin. If you have the HubSpot Sales Office 365 add-in, follow the troubleshooting steps for that add-in instead.

To resolve this error:

  • Open Internet Explorer.
  • Click the gear icon at the top right of the browser window, then select Internet Options.
  • In the Internet Options dialog box: 
    1. Click the Security tab.
    2. Select the Trusted Sites icon.
    3. Click Sites

  • Add each of the following site URLs to the Add this website to the zone field, one at a time. Click Add after entering each one:
  • Once you've added all three URLs, click Close.

  • In the Security level for this zone section, set the security setting to Low.

  • Next, click the Privacy tab.
  • Click Advanced.

  • Select the Accept radio button for both First-party and Third-party cookies (if the options are grayed out, select the Override automatic cookie handling checkbox).
  • Select the Always allow session cookies checkbox.
  • Click OK.

  • Click Apply.
  • Try logging into HubSpot Sales in Outlook again.