Thanks Mr.Deepak. You helped me a lot with this tread. And please never mind because I wasted your valuable time with this.
Originally Posted by deep27ak
MX record depends on the preference value that is mentioned as 10 and can be any value from 0 to 65535.
this plays its role when there are more than 1 mail server and the MX entry with the lowest preference value is preferred
and honestly speaking even I have not tried with any other preference value so you can give a try but a preference value is mandatory.