You need a good, clean mailing list.
Get the timing right. Too short a period, and the tension doesn’t build. Too long a period, and people forget the previous message.
Don’t string it out too long, i.e., send too many messages, or people get frustrated.
Use something tangible to accompany the message: such things often sit on people’s desks for days and act as a reminder.
Source: Jim Blythe, “Great Marketing Ideas: From Leading Companies Around the World,” Marshall Cavendish Editions, Singapore, 2009
Republished by Why Online Marketing