Fix Outlook.com email sync issues, including sign-in problems. Troubleshoot Outlook.com email issues that trigger a "delivery failed" error. Troubleshoot known issues with shared calendars in Outlook. Reconnect my Outlook 2016 or Outlook 2013 account to Outlook.com.

The following are the first things to know: 1. Name your group chat. It's a good idea to name your group chat, so it's clear what the subject of the conversation is. To start and name a new group chat, select New chat at the top of your chat list.