And then we set out to invest money, time, energy, and resources to contact them. Because turn out to be a success you need to think long-term. Since attachments often "catch" viruses, it's far better to wait on attachments until you're invited to do so. https://Baddiehub.Org.uk/from-leads-to-sales-the-power-of-contact-management-with-letsextract/