Ask HN: Which mailing list program or service?

Are you sure? Are you testing deliverability and open rates? Are you following the various idiosyncrasies which major mail hosts display (yahoo rate limiting, etc)? Do you follow strong anti-spam measures, and check your system for security holes often?

Not saying you don't but there's more to a hosted mailing solution than just the mailing. I'm not sure most people are able to put in as much time in to providing tried/true templates which work across a variety of clients unless they're working for one of the larger mailing list companies.

That said, I still do most of my own mailings, but I knowingly make the tradeoff.

@gaiusparx - mailchimp, madmimi, icontact and bronto are some of the bigger ones friends of mine use, and they all have generally good things to say about each one. I know some of the folks at icontact and bronto and can attest that they're both security-minded, customer-focused and basically 'on the ball' folks overall.