Wmail

Wmail is a mass/bulk mailer that allows you to send emails to a huge number of recipients. That way you can send newsletter to your customers. The software is totally free. You can even use freemail addresses to send the emails, even though usually freemail addresses limit the number of emails that can be sent in a time window. This is possible because wmail allows you to specify several sender email addresses. If for example the freemail services limit the number of emails to 100 and you use 20 sender emails, then you will be able to send 2000 emails.