Without a recorded consent the email goes out as an ordinary one, with no tracking and no notice. A tracked email ends with a short notice that it contains tracking and the link “Do not track my activity”. If you prefer not to track this email, switch tracking off for it before sending, or exclude the firm’s domain in your settings.
For the message itself, keep it short and factual: who you are, what the matter is about, any deadline, and the documents you can send. HawkOpen gives no legal advice and does not judge whether tracking suits a particular conversation.
Where rules that require consent apply, tracking may start only after that consent has been obtained. The link in the message lets the recipient withdraw consent later.