Rackspace Email Settings

Control Email Settings Via Webmail

As a user of Rackspace Email through Orlando Web Services each of your employees has a lot of control over their inbox. In the video to the right we have provided a 10 min overview of how you can control your email settings so that you can enjoy more of what Rackspace Email has to offer including:

  • Spam controls: Get robust user- and domain-level spam controls.
  • Notifications: create put of office notifications and email forwarding.
  • Custom email filtering: Set filtering rules to deliver messages wherever you want.
  • Shared calendars: Quickly view or share calendars with anyone on your domain.
  • Shared contacts: Share access to a company directory (similar to the Exchange GAL).


Online Presence Management (OPM) includes: Dedicated Support

Manual Configuration Settings

Secure Settings (Recommended)

The following server settings provide a secure (SSL) connection:

Protocol SSL server name SSL port number
POP3 (incoming) secure.emailsrvr.com 995
IMAP (incoming) secure.emailsrvr.com 993
SMTP (outgoing) secure.emailsrvr.com 465

Alternative Settings

Warning: The following alternative server settings do not use SSL and therefore do not make a secure connection to the mail server.
Protocol SSL server name SSL port number
POP3 (incoming) pop.emailsrvr.com 110
IMAP (incoming) imap.emailsrvr.com 143
SMTP (outgoing) smtp.emailsrvr.com 25, 587, 8025, or 2525

Setting Up DNS Records for Email

This section provides information about the DNS records that you need to set up for email transfer in Rackspace Email or Hosted Exchange.

Create the following entries on your DNS server:

  • MX records
  • Autodiscover record
  • SPF record

MX records

A mail exchange (MX) record directs incoming email sent to your domain to the specific server set up to accept email traffic for your domain. For example, if your email is hosted through Rackspace you have MX records that point to mx1.emailsrvr.com (10) and mx2.emailsrvr.com (20).

On your DNS server, set up MX records for both mx1.emailsrvr.com and mx2.emailsrvr.com with the following information:

  • Hostname: blank or @
  • Time to live (TTL): 3600
  • Record type: MX
  • Destination: mx1.emailsrvr.com
  • Priority: 10
  • Hostname: blank or @
  • Time to live (TTL): 3600
  • Record type: MX
  • Destination: mx2.emailsrvr.com
  • Priority: 20

Note: 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, contact your DNS provider. Typically it takes between 24 and 48 hours for changes to DNS records to fully propagate. We recommend updating your DNS records during off-peak traffic hours to allow for DNS propagation. No mail is lost during this time.

Autodiscover records

Autodiscover is a service that enables you and your team to easily configure your email clients by knowing only your Rackspace Email or Microsoft Exchange email address and password. Autodiscover enables additional features for Microsoft Exchange mailboxes such as downloading the offline address book, viewing free and busy time in a calendar, and using the Out-of-Office Assistant.

Note: Autodiscover is not compatible with Outlook 2011, Outlook 2016, or Mac Mail when setting up an email account as POP or IMAP.

To enable Autodiscover, set up a Canonical Name (CNAME) record with the following information.
Replace example.com with your own domain name.

  • Hostname: autodiscover.example.com
  • Time to live (TTL): lowest possible
  • Record type: CNAME
  • Destination: autodiscover.emailsrvr.com

SPF records

The Sender Policy Framework (SPF) record is a DNS record designed to combat and reduce spam for your domain. SPF records help mail servers identify unauthorized use of your domain in the form of forgeries (spoofing). SPF records also help improve your email deliverability rate by preventing the email that you send from landing in a recipient’s spam or junk mail inbox.

To have an SPF record implemented, contact your DNS hosting provider and have them add the following TXT record to your DNS:

  • Hostname: blank or @
  • Time to live (TTL): lowest possible
  • Record type: TXT
  • Destination: v=spf1 include:emailsrvr.com ~all

Set up DNS records for Hosted Skype for Business

To complete the configuration of your hosted implementation of Microsoft Skype for Business formerly Microsoft Lync, you must set up DNS records. The following three CNAME records and two SRV records must be in place to enable Skype for Business to work with the Hosted Exchange Environment.

CNAME records

  • autodiscover.example.com
  • lyncdiscover.example.com
  • sip.example.com

SRV records

  • _sip._tls.example.com
  • _sipfederationtls._tcp.example.com

Because of the nature of our hosted environment, the domain listed for these three CNAME records will contain specific Skype for Business DNS records. Use our help tool for the specific DNS records for your domain. After you log in with a mailbox that is enabled for Skype for Business, you can find the DNS settings through the Help Tool as shown in the following image.



  • If you have an internal DNS, you must also set up these records on your internal DNS.
  • If you want to enable Lync federation with domains hosted outside of Rackspace or domains that are hosted within Rackspace, contact our support team to learn more.