This article provides the DNS records required for the various Office 365 hosted services.
Exchange
MX Record
| Record Type | Host | Destination Data | Priority | TTL |
| MX (Mail Exchanger) | @ | customerdomain-com.mail.protection.outlook.com | 10 | 1 hour |
Note: Replace "customerdomain-com" in the MX record with your actual domain name. For example, if your domain is "widgets.net", you would enter "widgets-net.mail.protection.outlook.com". If your domain contains a hyphen, please contact support for your unique MX Record.
Autodiscover Record
| Record Type | Host | Destination Data | TTL |
| CNAME (Alias) | autodiscover | autodiscover.outlook.com | 1 hour |
SPF Record
| Record Type | Host | Destination Data | TTL |
| TXT (Text) | @ | v=spf1 include:spf.protection.outlook.com -all | 1 hour |
For additional assistance, the following Microsoft Support Article provides step-by-step configuration instructions specific to the most popular Domain hosting providers:
Create DNS records for Office 365 when you manage your DNS records