How do I re-enable Email Manager for Outlook?

Issue: Email Manager causes Outlook to crash and the Collligo add-in gets "hard disabled"

Resolution: When an add-in is disabled, a randomly generated binary value is created in the Outlook's registry settings here: HKEY_CURRENT_USER\Software\Microsoft\Office\[version]\Outlook\Resiliency\DisabledItems

Delete the specific REG_BINARY string value in the Disabled Items key, or remove the entire Resiliency key to re-enable the program.

Check the Value Data field for the name Colligo to ensure you are deleting the correct key:

Version numbers:
Outlook 2003: 11.0
Outlook 2007: 12.0
Outlook 2010: 14.0
Outlook 2013: 15.0
Outlook 2016: 16.0