does your site offer free membership for 30 days of trial membership? This could be a good hook to your list.
Email marketing is directly marketing a commercial message to a group of people using electronic mail (email).
Well, are you authorized to send email to that many people ? Have they ever subscribed to your website ? If not, your email can be blacklisted, so be careful.
You can use the email marketing software to use/import the email addresses which you have (make sure that you do have the opt-in email contacts). With the help of email marketing software you're able to manage your contacts, send bulk email to all contact at once (within seconds).
You use e-mail software and I think you may hire a person who have mail software just like me. The mailing software is easy to send mails daily.
You can not send from your control panel .May be you will be banned from your Hosting.Hosting did not allow more than approx 5000 emails/hr. And can you confirm us that the email list have you got that are in work mode. Yahoo email are famous for spam and they will be deleted soon. For which website ,are you going to send the email . Note- In India ,Music websites get banned..If your website from India,please be secure yourself OR get the license after seeing your signature. Sorry i forgot my path,you may use the email delivery services for this.