Is Office 365 Mail better than On-Premise Exchange?

Many are used to having Exchange on-premise and the older versions of Exchange are fast and reliable, when configured and maintained properly. The newer versions of Exchange take more resources and can be slow if you don’t have enough CPU power assigned to it or if your storage is greater than 100GB on one of the four storage areas. Office 365 is where Microsoft is investing, so you can be assured that more bells and whistles will be added to make this scenario better value over time.