Note: if you have a Shared hosting account, please contact Support for help setting this up. If you have a VPS, Dedicated Server, or are a Reseller, follow the instructions below.
To set up Microsoft Office 365:
Log in to WHM
Click DNS Functions on the left-hand sidebar
Click the Edit DNS Zone icon
Click the name of the zone you'd like to edit and then click the Edit button
Update the text fields as per the following information, where 'myURL.com' is your actual domain name:
myURL.com. 300 MX 0 myURL.com.mail.eo.outlook.com.
myURL.com. 3600 TXT MS=ms000000
autodiscover 3600 CNAME autodiscover.outlook.com.
myURL.com. 3600 TXT "v=spf1 include:outlook.com ~all"
_sip._tls 3600 SRV 100 1 443 sipdir.online.lync.com.
_sipfederationtls._tcp 3600 SRV 100 1 5061 sipfed.online.lync.com.
sip 3600 CNAME sipdir.online.lync.com.
lyncdiscover 3600 CNAME webdir.online.lync.com.
Tick the 'Remote Mail Exchanger' option in the Change the Email Routing section near the bottom
Click the Save button
Note: the MS record shown in red is a number supplied by Microsoft as part of the verification process. The MX record contains the domain name as a prefix, with periods replaced by hyphens.