i get an email list from a friend

I have been monetizing purchased data for over 16 years. So I can give you some tips.

With any purchased data you want to have it cleaned.

When it comes to cleaning data, anything over $.60 per thousand that is actually verifying addresses as part of the cleaning process is overcharging as well in my book. Additionally if you have very large lists or plan to be in the business long term, you are better off getting software that you can use to verify addresses yourself and then just pay to have the valid addresses cleaned.

Depending on the type of data it is, will dictate how you send it. IF it is fresh and targeted, you ideally want to send using a service that uses shared IPs, so that you can piggyback off the IP reputation of all user and hopefully get good inboxing.

If it's aged data, then it's essentially untargeted and is going to generate a lower response rate and will be potentially more prone to getting complaints. So in this case I would look to set up your own self hosted mailer and IPs, However, this becomes much more complex..

Additionally, I would be very cautious of any service that offers you a platform to mail and allows you to send purchased lists. As they typically aren't worth a crap and usually just a scam to take advantage of novice mailers...overcharge them for the amount of IPs they provide.

What you want to do is work with a provider that simply supplies servers and IPs and supports mailers and won't terminate service over complaints.

In the end, it's all about collecting your opens / clickers and dumping the unresponsive data. So that eventually you will have a smaller, but very responsive list and be able to mail less and make more when you send.