The welcome screen: clear, fast, nice.
Access to all the main features in 1 click. Directly view how many mails you still have since the end of administrative month (the date you subscribe + 30 days)

Recipients management menu: Import, export, add, clear...

Import: import all your recipients, S2MB keep the rest clean: doublon, badly formated email, existing email (add it in a category if needed), import statistics

The advanced filter system for recipients management.
View your filter result (n#) or visualize them (show button). Treath the results.

The recipient sheet
complete, adress info, country, language, HTML/text version, subscription date, free fields.

Categories or mailing list managemenet:
move, copy, delete or add unlimited categories. Export in XLS format the category/mailing list recipients, ...

E-mail management, compose, acces to statistics of Sent Emails, resend a draft, multiple senders*, mutliple template*... (*created on setup)

Create your e-mail:
Simple as Word, you can format your content, insert images, personalyse your mail body with recipient data, insert tracked links, choose sent date, save as draft,... You easely view how many real subscribers you have in your mailing lists. 

Tracked links stats: Filter tracked links on a link, on a specific mailing or on a specific user and add filtered recipients to a specific category or mailgroup

Sent stats: graphs by days, average per day and average per hours of readers and unsubscribers

[ for webmasters ] Advanced web site integration: create form for optin, or just plug it to your existing forms (scripting language needed like PHP, ASP, CFM, ...)