Hello 
Please can you look in to this issue again as it should be working...
Domain Name            Accounts            Open membership            Status
hgk.com.vn                  unknown            closed                               Pending DNS configuration
 
When you click on the domain name you are taken to a web page that reports...
 
You need to prove ownership of this domain by creating a DNS record. Use the settings below.
 
Here it recommeds creating an MX record...
58e4e3931f38944b9ca0cea3cbd17b.pamx1.hotmail.com
 
The MX record has been created in hosting & domain  and still I cannot create or add new email addresses.

Thank you for your support
Tin
Hello 
Please can you look in to this issue again as it should be working...
Domain Name            Accounts            Open membership            Status
yosrtech.com                  unknown            closed                               Pending DNS configuration
 
When you click on the domain name you are taken to a web page that reports...
 
You need to prove ownership of this domain by creating a DNS record. Use the settings below.
 
Here it recommeds creating an MX record...
c4bacde5c3ef4bba77a543b2fb2f21.pamx1.hotmail.com
 
The MX record has been created in hosting & domain  and still I cannot create or add new email addresses.