I just learned that Mailing list option under Domain Settings is not available. what would be a solution to send out news-letters to the users of my website (about 150 emails)? thanks!
Do you have the email address in a database? You can setup a simple ASP.Net web application that can call to the database and populate the To address and send out the email. Remember, most shared hosting can't support mailing lists because it can blacklist the server. Then all the other email accounts on that server will be impacted.