Outlook Web App > For Administrators > Configure Your Domain > Configure DNS >
DNS Records for Outlook Live

Topic Last Modified: 2009-07-14

When you enroll your organization with Outlook Live, you need to configure your DNS records so your organization can send and receive e-mail, and your users can connect to the service with various client applications.

Here's a roadmap to the DNS records used in Outlook Live. To learn more about how to configure these records at your domain registrar, see Detailed instructions for specific domain registrars.

DNS record Required? Purpose Value to use for Outlook Live

MX

Required

This value directs all incoming mail for the domain to Outlook Live and also proves domain ownership. When you enroll in Outlook Live, you have to remove any preexisting MX records that aren't related to Outlook Live from your domain's DNS hosting service.

Target Server   <MX token>.mail.outlook.com

Preference   10

For more information, see Use an MX Record to Direct Mail to Your Domain.

CNAME

Optional

This value proves that you own the domain but it doesn't direct incoming mail for the domain to Outlook Live.

Alias   <MX token>

Target   domains.live.com

For more information, see Use a CNAME Record to Prove Domain Ownership.

CNAME

Optional

This value allows Outlook 2007 clients to connect to Outlook Live by using the Autodiscover service.

Alias   autodiscover

Target   autodiscover.outlook.com

For more information, see Use a CNAME Record to Enable Outlook to Connect to Outlook Live.

SPF (TXT)

Optional

This value identifies authorized outbound e-mail servers so destination messaging servers trust messages originating from your Outlook Live domain.

Value   v=spf1 include:outlook.com ~all

For more information, see Use an SPF Record to Validate E-mail Sent from Your Domain.

SRV

Optional

This value allows your Outlook Live domain to share instant messaging (IM) features with clients other than Windows Live Messenger.

Service   _sipfederationtls

Protocol   _tcp

Priority   10

Weight   2

Port   5061

Target   federation.messenger.msn.com

For more information, see Use an SRV Record to Enable Instant Messaging Clients.

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