Is it possible to create a robot account in bitbucket without creating a new email account?
After doing some research and comparing various documents it seems that a bot account is basically a real user account and needs a separate email account in order to create such an account as using an email account to register a new account results in, e.g.: This email account is already in use.

Combined with quote retrieved from the link that is defined in the question:


  User accounts are intended for humans, but you can give one to a
  robot, such as a continuous integration bot, if necessary.


It seems to be necessary to create a new email account if a bot account has to be created as:


git repositories, like github, bitbucket and gitlab check whether an email account already exists if a new user is created
to clarify that the user is a bot and not a human