How do I give up or relinquish or stop owning a domain?
The domain I host here receives too much SPAM. I want to stop having that SPAM delivered via dynadot. I want SPAMers' mail servers to simply fail to find the address.
Sorry to hear you've been having issues with spam! If you would like to simply delete the domain, please see this help file: https://www.dynadot.com/community/help/question/mark-for-deletion.
Please note that there are some exceptions, and at this time EU, .BE, .UK, and .AT domains cannot be marked for deletion.