When trying to use Groupwise Migrator for Exchange (GME) to remove forwarding from an Office 265 account that was previously set the following warning is shown:
10:51:18 WARNING: [108-1-273-00000000] Unable to update mail forwarding in Active Directory for 'email@example.com'
10:51:18 User is already forwarded to 'smtp:firstname.lastname@example.org'
This issue has been resolved in GME 18.104.22.168. Please contact support to obtain this version of GME.