Your network connection to the Internet will directly impact the communication performance between your on-premises organization ...

Your network connection to the Internet will directly impact the communication performance between your on-premises organization and %BRAND_OFFICE_365_SHORT%. This is particularly true when moving mailboxes from your on-premises %BRAND_EXCHANGE_ONLINE_SHORT% 2010 server to %BRAND_OFFICE_365_SHORT%. Learn more at Network planning and performance tuning for %BRAND_OFFICE_365_SHORT%.