One week before encourages the registrants to mark the date in their calendar for the next week.

And the email sent 5 minutes before the webinar creates such a sense of urgency, that they make up for the greatest percentage of attendees.

Sounding both professional and personal in these emails is crucial. One of my favorite examples is an email from GetResponse’s Irek Klimczak. It asked a question in the subject line: “Will you make it today?”. This line alone gave him surprising results. It generated a 42.41% open and a 3.67% click-through rate and boosted the registrants-to-attendees rate by 5%. It also received a decent number of personal replies.