Mailman - Installed in a Linux box, this open-source email broadcast tools allow you to send out hundred of thousands emails in a day with its build in SMTP server. Perfect solution for Mailing List but lack of personalization (considering Mailman is used for really-large-volumn email broadcast, we don’t suggest personalization too during delivering).

Groupmail - Web-based software. Get yourself the Professional version which allow you to connect to any external database. It is fast, easy to use and most reliable one!! We have been switching from Mailman, Phplist to this, and one of the best options!

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