Email Marketing is all about making your readers have confidence in you and know who you are. We say they need to know who you are because many readers who see emails that are not from a known sender, delete them or mark them as spam. So make sure you send your contacts a way to opt-in and do not buy databases.
When creating a newsletter, remember to use a good subject line because it is the first thing readers see. We encourage you to make it clear and attractive, so you can make sure that they open it.
Also, we recommend you to not clutter the inbox of your readers with many newsletters, it may cause them annoyance and soon enough they will unsubscribe or mark your email as spam. Also, avoid sending more than one email, or maximum two emails with a week.