Email inboxing but being ignored? Need suggestion

I wrote a emailing process in PHP that sends out emails (via my webhost's smtp) to a list that the same script harvests from websites. After sending out 300 scraped emails, my website tracker notice only 1 visitor coming from aol mail. Theres lots of custom domains and gmails and couple of yahoo mails in the email blast list. To see if the email is hitting the spam filters, I send some of the emails to my own gmails and they inboxed nicely.

Could it be that not enough emails are sent to see some hits from it? Or somehow gmail is tricking me into thinking that my emails are inboxing (at least when sent to @gmail.com addresses)?

Could just be that nobody wants to open that crap. Or maybe that your list isn't composed of individuals that actually want to receive that sort of information by email.

When you get emails by opt in... you know those people are at least somewhat interested in getting things by email. So you'll have a higher open rate.

When you scrape the emails, it's a different ball game.

You will need to send more than 300 emails to make a money off a scrapped email list... you will need at least 10,000 entries verified, composed of people interested in your products.

are your emails at the top of the list, stick your test emails in throughout the list.

do you have just the email address, alot of people say scraped when they actually mean hacked database (hence why i asked)

If you do have more data about a subject vary what you put [mr/mrs/ms/master/doc] [first name] [last name] I was about to call you on [phone number] but thought it would be better to email you, We are currently doing a promotion exclusively for residents in [town] [country]

aswell as getting through spam filters you will get a hell of a lot more people clicking through

Contrary to belief, this kind of marketing is not just a numbers game. It's also a demographic game. If you are targeting the wrong audience, you aren't going to make any money.

Thanks for the responses.

These are emails scraped by me off a website where everyone scrapped is in the targeted demographics (eg: promoting cheese to people in a forum about how great cheese is).

This is my first time attempting to bulk email to addresses I've scraped. How are the numbers like when emailing a scraped email list of targeted group? Like 1000 emails sent, 100 emails opened, and with a good copy and good targeting, 10 people click through?

UPDATE: 330 emails sent, 14 signups on the landing page. I guess I'm too impatient, took a day for the recipients to open the emails sent. How are these numbers compared to the typical bulk mailing campaigns?