Constant Contact

I have used this company to create/manage/track e-mail newsletters for years. I can export all my e-mails (now from outlook) into my Constant Contact account, create great looking html e-mails, and then send out a mass mailer. After it is sent I can track how many people opened the e-mail and even clicked on links within the e-mail. Do not use this company if you purchased a list of e-mails and plan on spamming people; they will delete your account. Constant Contact is great for managing e-mails that are truly opt-in e-mails.