In Mac edition you can send unlimited messages only via your SMTP servers from unlimited contacts in lists. Also can use Mail Merge service.

Bulk Mailer for Mac gives you the ability to grow your business quickly, easily and economically. With the Bulk Mailer program you can create your own personalized email in a minute using the built-in HTML editor and attachment options. Our software is reliable, fast, and easy to use, with easy-to-manage contact groups and detailed sending performance reports so you can take care of your business.

Here download free version - Download

You pay one time for lifetime key for one PC and unlimited emails. Also you have free support and update of program in current version.