HamCannon is a Zope/Plone product for managing
outbound email marketing. HamCannon is designed
for sending ham, not spam: it has much support for
helping users unsubscribe and none for hiding from
them. HamCannon provides all of the tools required
to produce personalized email newsletters or other
email marketing, with subscription management,
open tracking, bounce tracking and link tracking,
complete statistical reporting and complete
personalization, limited only by your data.