The Newsletter feature is brand new as of version 2.2.4.6 and will be evolving based on user feedback.

You must have correct settings for the smtp server in Web.config

Create a Newsletter by clicking the key icon to get to the Administration menu, then click the link for Newsletter Administration, then click the "Add New Newsletter" link to create a new newsletter. There you will define the title of the newsletter, description, and some other settings. You can select which roles are allowed to subscribe, by default it is All Users. Once you have saved the newsletter additional links will appear on the Newsletter Administration page that allow you to create new letter editions and view previous editions that have been sent (of course at first none have been sent).

A new option appears in the My Account page where users can opt into the list. You can view current subscribers also from the Newsletter Administration page.

I've only included 1 email template in the first release, I will try to make some more soon and will list some resources below with information that may help you create your own templates. Html email is quite a different animal than regular html. Most email clients like Gmail or Yahoo will strip out the head section and sometimes even the body tags, leaving only what was contained in the body. You may have some success with styles by putting them in <style type="text/css">...</style> inside the body, but this is not valid html even though it will display correctly. You can use valid html by using inline styles with style="..." on each element that you want to style but this becomes very verbose and clumsy.

Images may not display unless the user allows it so its best if your content conveys the message well even if images are not visible.

Most important when creating your letter editions is to make sure you include #unsubscribe# somewhere in your letter. This token will be replaced with a user specific unsubscribe link automatically. We may also implement other tokens for personalizing the messages in future versions in a mail merge fashion.

Unsubscribe links are mandatory. You should familiarize yourself with the CAN-SPAM Act Requirements to make sure you do not violate them. Used correctly email marketing can be a great tool to build connections with your readers.