[iamdead]

I have everything ready but having a hard time sending the emails, i tried sending the emails through throwaway gmail accounts but i can only send a couple hundered and it also goes to spam. I have created a business email using my domain which i can maybe use but would like to hear some better and more effective methods of reaching out.

[misconfigurations]

I can think of two better ways then you used.

1. Using mailer uploaded to website you hacked
Lot of webservers lets you send out emails without smtp. All you have to do is to upload mailer, test it and if it sends your letters then you'll be able to mass send spam emails. Using this method you'll be able to send any email from any address.

2. Using smtp
You get smtp credentials that you can use in mailer and send out spam emails using it. Using this method you'll be able to send any email throught one or more email addresses you've got credentials from.