Raul,

If there is a problem with your MX record, no configuration in Xeams will be able to fix it. I recommend you call your DNS provider and ask them the correct syntax their interface expects for an MX record.

Before you add an MX record, you will have to enter an A record. For example:

mail        A   12.34.56.78

Once an A record is done, you would add an MX, for example:

@           MX  10  mail.yourDomain.com.