@shehzad1186 Sorry you are having this issue. Both of those domains should work unless they have been claimed by your Docusign organization administrator. Check with your Docusign admin to see if that is the case. If not and you continue to have an issue, please open a case with our Customer Support Team by clicking "Continue" below the eSignature option and logging in with your Docusign credentials. If those domains have been claimed, try using a gmail or outlook account to register instead.
Regards,
Jerry
Jerry Withers, Senior Partner Specialist, Docusign