Greetings RD Contestor.

How do you send in your RD Log?

Your log needs to be in Cabrillo Format

http://wwrof.org/cabrillo/cabrillo-qso-templates/

This is a standard output on most logging programmes – even ones for Mac
If you only have an ADIF Log you can use an ADIF to Cabrillo convertor. (google will find one)

If you only have a few contacts the log can be uploaded or sent in by cut and paste on this website

https://contester.azurewebsites.net/Contests/SubmitLog/2