outlook 365 2016 version old emails keep downloading repeatedly, problem started since I upgraded to 2016 from 2013
I recently opted to upgrade to outlook 2016, since my old emails (30k of them 4 GB) are downloading for the third time. how can I stop this? i did change my ISP before I upgraded to 2016. while still with 2013, i had downloaded 30k emails once. How can I stop this repeated downloads?