There are several ways to connect a domain to GetCourse:
This method of connecting a domain to the GetCourse service makes it possible to use mailing from a personal domain, providing a higher probability of their correct delivery without getting into spam, but without the ability to access content posted on the service by domain name. This is useful if the domain name is in use or if you plan to use it for an existing site.
To configure the required records you need:
@
.v=spf1 include:getcourse.ru
.v=spf1 include:getcourse.ru include:_spf.ukraine.com.ua ~all
or make a correct entry for your case.getcourse._domainkey
.To direct your domain to NS GetCourse do the following:
from 2-00 to 7-00