Christmas in July
Having a mailing list is absolutely crucial for a successful author business, so if you need to start one or if you're looking for more advanced features like tagging and advanced autoresponders, I hope you consider checking out ConvertKit!
It's definitely what I use and recommend for authors, and this week only, you can try it out yourself free for 30 days!
(That's an affiliate link, by the way. Yes, I love and use CK myself!)
ConvertKit doesn't normally offer free trials, so I had to share this with you. Make sure you take advantage of this while it lasts!
Try out ConvertKit and all its amazing features free for 30 days: http://mbsy.co/hMGsG