If your Outlook client software or Windows operating system software is out of date, you might have problems sending and receiving email. If you're an admin with multiple users reporting problems, you also should check for service issues with Office 365. Out-of-date software and corrupted Outlook profiles are two of the most common issues that can prevent you from sending and receiving email. Need more help? Contact support for business products - Admin Help.

Let us fix your issue Support and Recovery Assistant for Office 365 If our automated tool can't fix your issue, or you'd like to fix it yourself, see the next section. We can diagnose and fix several common Outlook connectivity issues for you. Let us fix your Outlook connection problems for you > If you're looking for help with Outlook for Mac, check out Outlook 2016 for Mac Help. If you're looking for help with, check out Help for.