Hello everyone, Im a beginner in email marketing and just got my first client (newsletter landing page and welcome sequence). I'm struggling to understand how i can get authorisation to write with my client's email address (for the welcome sequence) without my client having to type in my convertkit password (im refering to the settings "Email - Email addresses"). My client does not have a ConvertKit account. Does he need to create one so he can type in his account's details when confirming to authorize me to write with his email? I hope this is clear.