I have some folks that want to get a mailing list set up. Most likely they want something that can send HTML as opposed to plain text but I'm waiting for an answer for that. I have read about PHPList before and was just doing another run through but sadly they are not using Apache. They do have PHP on their server as the site is Wordpress. Would it just be easier for me (setting it up) and them (actually doing it) to just use a 3rd party service for something like this.

Do any of you have experience with any of the services out there?