A very basic rule is that you have to keep your anonymous accounts completely separate from anything that could relate back to your true identity. To be invisible you will need to start with a clean slate for each new secure contact you make. Legacy e-mail accounts might be connected in various ways to other parts of your life—friends, hobbies, work. To communicate in secrecy, you will need to create new e-mail accounts using Tor so that the IP address setting up the account is not associated with your real identity in any way.
