Reputable email marketing vendors don't let you use purchased lists.
If you're using email marketing software now or plan to in the future, you'll find that reputable companies will insist that you use opt-in email lists.
Optin Email Marketing
Top Rated Opt-In Email List Marketing & Advertising Services - Marketing Email Lists.
Our powerful mailing system is capable of sending mass personalized text and or HTML emails directly to the customers inbox.