6 Ways to Screw Up a Customer Email
Do you have a customer email list? Send out a newsletter or career updates? A marketing list of people who want to know when your next book comes out?
If you don't have a mailing list, you need to work on that. Publishers love to see query letters that say "My mailing list is 3,000 verified subscribers." That should translate directly into sales.
But email lists are tricky in this day and age. Spammers have made things difficult for all of us. The rules keep changing, and more and more people use the "Report as spam" button to delete their emails. It happens to us every week.
Writers DO need to have mailing lists. But it's just as important to make sure you handle your mailing list properly.
Go here for a great post on how to send a proper follow up email to your fans.
Just do it, but do it right.