Trying MailChimp in Drupal
Drupal 7 has a stable module that integrates MailChimp now. The project page is found here.
I only recently became aware of MailChimp after seeing many incoming emails with the little monkey logo, so I thought it was time to see what it was all about. It has all options to allow it to conform to modern quality email sending standards such as opt in and easy un-subscribe. I have used Constant Contact before and this seems like a comparable service but with a nice free plan. Website owners can check MailChimp out to see if it will fill your needs.
Here is a link as one way of finding a sign up form for the Test List. There is another sign up form on each page here for the Site Updates List. Give either one a try if you want to get a feel for the sign up process and maybe receive a test email send if I get around to it.
It all works really well. I did a quick html campaign and sent it to my 3 subscribers and was very impressed with how professional it all looks. To me it has way more flexibility than the Constant Contact I was paying for and this is free.