Outlook 2016 hangs with Junk Email Reporting add-in and large archive

Original KB number:   3171036

Symptoms

Consider the following scenario:

• You run Microsoft Outlook 2016.
• You have a large online archive mailbox open in Outlook.
• You have the Microsoft Junk E-mail Reporting Add-In for Microsoft Office Outlook installed.

In this scenario, Outlook may stop responding.

Workaround

To work around this issue, uninstall the Microsoft Junk E-mail Reporting Add-In for Microsoft Office Outlook by following these steps.

1. Exit Outlook.
2. Open Control Panel.
3. Select Programs and Features.
4. Select Microsoft Junk E-mail Reporting Add-In for Microsoft Office Outlook.
5. Select Uninstall.
6. Start Outlook.

Resolution

To fix this issue, enable the Report Message or the Report Phishing add-ins.