After a couple of years, we already collected a lot of emails from customers.
Now we want to send regular newsletters to customers who opt in the program. We can write a program to periodically send emails to from our own website (hosted by godaddy) directly, but we are afraid that our site gets blacklisted by email providers such as yahoo, hotmail, or gmail. So we prefer to export our email lists to an email marketing company and let them send emails instead.
Can you guys suggest us some decent companies with good pricing?