DNS records for Rackspace email

In order to receive email and integrate optimally with your new mailboxes at Rackspace, you must have your domain’s settings properly configured.


MX Records

Autodiscover Record

SPF Record


MX Records
An MX or Mail Exchange record directs all incoming email sent to any email address on your domain to a specific server that allows you to retrieve them. For example, if your email is hosted through Rackspace you will have a set of MX records that point to mx1.emailsrvr.com (10) and mx2.emailsrvr.com (20).

Set up MX Records

Hostname Time To Live (TTL) Record Type Destination Priority
blank or @ 3600 MX mx1.emailsrvr.com 10
blank or @ 3600 MX mx2.emailsrvr.com 20

Note: In order to change the settings for your domain, you must own and have access to edit these records. If you do not have access to do so, please contact your DNS provider. Typically it takes between 24 and 48 hours for DNS records to fully update. If your run a business, we typically recommend updating your DNS records during the slow period of your operating hours like a Friday night; this allows servers to fully propagate. No mail will be lost during this time.


Autodiscover Record
Autodiscover is a service that allows users to easily configure their email client knowing only their Rackspace or Microsoft Exchange email address and password. Autodiscover also enables additional features for Microsoft Exchange mailboxes such as: downloading the offline address book, viewing Free/Busy time in a calendar, and the Out-of-Office Assistant.

Note: Autodiscover is not compatible with Outlook 2011 and Mac Mail

Setting up Autodiscover

Hostname Time To Live (TTL) Record Type Destination
autodiscover lowest possible CNAME autodiscover.emailsrvr.com

Note: Some DNS providers require your full domain name in the hostname field; e.g. if your domain is example.com, your hostname would be autodiscover.example.com


SPF Record
The Sender Policy Framework record, better known as the "SPF" Record, is a DNS Record designed to combat and reduce spam for your domain. SPF Records help mail servers distinguish forgeries (spoofing) made by spammers and can also help improve your domains email deliverability rate by keeping it out of your intended recipient's spam or junk box.

Setting up an SPF Record

Hostname Time To Live (TTL) Record Type Destination
blank or @ lowest possible TXT v=spf1 include:emailsrvr.com ~all

Note: To have an SPF Record implemented, please contact your DNS hosting provider, and have them add the following TXT Records to your DNS.

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