For those who wish to create their own solution for delivering emails to customers etc.
Would you prefer:
Follow Up Autoresponder and Mailing List Software - AutoResponse Plus
Email Marketing | Email Marketing Software | Interspire Email Marketer
It doesn't appear you could (or would) use both together...so just seeing which one comes more recommended by other Warriors who prefer to host themself.
PS - Let's keep the topic on recommended self-hosted solutions and NOT on "what about spam complaints!?!?!" etc. etc.