My first big project at my current job was to move all customers from hosted exchange 2013 to office 365. It was a difficult time for customers and the company,

My first big project at my current job was to move all customers from hosted exchange 2013 to office 365. It was a difficult time for customers and the company, but the rackspace drama confirmed that was the right thing to do. Funnily we have customer project to move them from several IMAP & HEX providers to O365 - the customer went radio silent for ages, but instantly called us to finally get it moving.