1- Login to your cPanel account.
2- Click on Advanced Zone Editor (or MX Entry) in the Domains section.
 

3- Select the domain you want to edit from Domain dropdown menu.
4- In Email Routing section, select Remote Mail Exchange. (If it already selected click Change).
IMPORTANT: delete any existing entries.
5- Add the following MX records; click on Add New Record after each entry.

Host/ Domain: @
Points to : wp-secure-cloudmail01.worldposta.com
Priority: 5

Host/ Domain: @
Points to : wp-secure-cloudmail02.worldposta.com
Priority: 5

Host/ Domain: @
Points to : wp-secure-cloudmail03.worldposta.com
Priority: 5

Host/ Domain: @
Points to : wp-secure-cloudmail04.worldposta.com
Priority: 5

1- In the section Domain, click on Advanced Zone Editor.To add TXT and SRV:
2- Select the domain you want to edit from the dropdown menu.
3- Choose TXT from Type dropdown menu.
Then add the following TXT value

• SPF Record

Host/Domain: @
SPF Value/TXT value: v=spf1 a mx include:_spf.worldposta.com -all

4- Add new record and choose SRV from Type dropdown menu.
Then add the following SRV values

 

• SRV Record

Host/Domain: _autodiscover._tcp.yourdomain.com.
Target: autodiscover.worldposta.com
Priority: 0
Weight: 0
Port: 443