If you're looking for the default Microsoft 365 DNS records, we've listed them below. For more information on DNS records, you can visit our Understanding DNS support article.
| Record Type | Host Name | TXT Value | TTL |
|---|
| TXT | @ | MS=msXXXXXXXX | 3600 |
| TXT | @ | v=spf1 include:spf.protection.outlook.com -all | 3600 |
| Record Type | Host Name | Points to | TTL | Priority |
|---|
| MX | @ | domain-tld.mail.protection.outlook.com | 3600 | 0 |
| Record Type | Host Name | Points to | TTL |
|---|
| CNAME | autodiscover | autodiscover.outlook.com | 3600 |
| CNAME | sip | sipdir.online.lync.com | 3600 |
| CNAME | lyncdiscover | webdir.online.lync.com | 3600 |
| CNAME | msoid | clientconfig.microsoftonline-p.net | 3600 |
| CNAME | enterpriseregistration | enterpriseregistration.windows.net | 3600 |
| CNAME | enterpriseenrollment | enterpriseenrollment.manage.microsoft.com | 3600 |
| Record Type | Host Name | Target | TLL | Priority | Service | Protocol | Port | Weight |
|---|
| SRV | @ | sipdir.online.lync.com | 3600 | 100 | _sip | _tls | 443 | 1 |
| SRV | @ | sipfed.online.lync.com | 3600 | 100 | _sipfederationtls | _tcp | 5061 | 1 |
