Load DNS Settings on the domain that will be used for email:

Type Hostname Destination Priority TTL
MX @ or left blank mx1.emailsrvr.com 10 3600 seconds or lowest allowed
MX @ or left blank mx2.emailsrvr.com 20 3600 seconds or lowest allowed
TXT @ or left blank v=spf1 include:emailsrvr.com ~all NA 3600 seconds or lowest allowed
CNAME autodiscover autodiscover.emailsrvr.com NA 3600 seconds or lowest allowed

tell them:

• Email has been setup
• We created your inbox
• You can view webmail by going to this link: https://apps.rackspace.com
• You can get step-by-step instructions with pictures on how to setup your email o[n your phone, tablet, computer, etc: https://help.emailsrvr.com