Enable local timestamp on Office 365 SharePoint site
Configure SharePoint to display local timestamps for users in different time zones.
Annoying Office 365 issues: Username won't sync through DirSync
Fix Office 365 UPN sync issues by revoking licenses before DirSync.
Receive error: Target mailbox doesn't have an SMTP proxy matching '.mail.onmicrosoft.com' when move mailbox to Office 365
Fix mailbox migration errors by adding missing SMTP proxy addresses.