Dyn - Change the contact details for a zone

Each and every domain defined on a DNS has a SOA record, that among other things has the details of a technical contact. 

Here's how to manage the contact details in Dyn:

1. Log into your Dyn account
2. Manage the relevant domain
3. Switch to Simple Editor
4. Expand the SOA record at the domain root
5. Modify the contact email. It must be a valid email address