You need to add few details like, Name of your list, Sender name for the list, reply-to email, default subject and few more details. Most of the fields are self-explanatory, so you will not find yourself lost at any moment. There are few fields which are mandatory, for example, Address of your company (In the case of bloggers, you can add your home address). You can leave the default subject field empty, as this will be used when you are sending your first email campaign.
Email marketing has the highest conversion rates of any marketing channel. In fact, sixty-six percent of online consumers made a purchase after receiving an email marketing message — which is more than social and direct mail, according to the Data & Marketing Association. And transactions from email are three times more profitable than those made on social media, reports the global management consulting firm McKinsey & Company.