Changes to Add a domain

added the new daily_limit_exceeded enum value to the anyOf[#/components/schemas/Error]/code response property for the response status 403

added the new daily_limit_exceeded enum value to the code response property for the response status 400

added the new daily_limit_exceeded enum value to the code response property for the response status 401

added the new daily_limit_exceeded enum value to the code response property for the response status 409

added the new daily_limit_exceeded enum value to the code response property for the response status 422

added the new daily_limit_exceeded enum value to the code response property for the response status 429

added the new monthly_limit_exceeded enum value to the anyOf[#/components/schemas/Error]/code response property for the response status 403

added the new monthly_limit_exceeded enum value to the code response property for the response status 400

added the new monthly_limit_exceeded enum value to the code response property for the response status 401

added the new monthly_limit_exceeded enum value to the code response property for the response status 409

added the new monthly_limit_exceeded enum value to the code response property for the response status 422

added the new monthly_limit_exceeded enum value to the code response property for the response status 429

added the new send_limit_exceeded enum value to the anyOf[#/components/schemas/Error]/code response property for the response status 403

added the new send_limit_exceeded enum value to the code response property for the response status 400

added the new send_limit_exceeded enum value to the code response property for the response status 401

added the new send_limit_exceeded enum value to the code response property for the response status 409

added the new send_limit_exceeded enum value to the code response property for the response status 422

added the new send_limit_exceeded enum value to the code response property for the response status 429

the name request property's minLength was increased from 0 to 1

removed the success response with the status 200

the name request property's maxLength was set to 253

added the new optional request property custom_return_path

the click_tracking request property default value false was removed

the open_tracking request property default value false was removed

the region request property default value eu-west-1 was removed

the tls_mode request property default value opportunistic was removed

added the non-success response with the status 400

added the non-success response with the status 401

added the non-success response with the status 403

added the non-success response with the status 409

added the non-success response with the status 422

added the non-success response with the status 429

added the success response with the status 201