email migration using Outook 2019 GSSMO? - TELUS Neighbourhood I thought I was able to do this using Outlook 2016, but as it turned out I recently upgraded to Office 365 and had to complete the migration using Outlook 2019 GSSMO I followed all the instructions that Telus recommended Lo and behold, none of my folders sub-folders that I used in Outlook transferred and only messages from the past 2 weeks