Our fee is $9 + 3 cents per email for every bulk email blast you send.
You can test it by sending an "bulk email" to up to 5 people for free.
There is no monthly contract. You can send one whenever you want.
Note: If you send an email blast to more than a dozen people from your hosting account email, your account may be terminated. Unfortunately, such email behaviour can get our entire server banned and viewed as a spam server. We can't have that happen as our business will suffer tremendously.