Hey,
It'd be awesome if you could have multiple mailing lists for Sigle Newsletters. I'm using Sigle for two types of Posts: Investor/Progress Updates & Blog Posts.
If I could flag a post as Blog, for example, and then it gets sent to Blog Subscribers, same with Updates, it would be perfect for me.
Right now this is a bit of a pain point since I don't want Blog Subscribers to get all of our Investor Updates.
Keep up the amazing work!