May 22, 2019 12:30 p.m.
Users may see the error message "We can't show MailTips right now" or be unable to see their MailTips when they compose email messages in Outlook Desktop or Outlook for Mac.
As a workaround, users can use Outlook on the web.
Microsoft identified that a feature change caused unexpected impact to MailTips. They've begun reverting the change and are monitoring the results.
May 23, 2019 1:15 p.m.