Buying an email list is not a good way of starting your email marketing activites. We can honstely tell you that it's a waste of money as the recipients won't know who you are and your message will most likely end up being marked as spam. That's definitelly not something you would want as it will ruin your reputation for a long time. In addition there are legal concerns regarding such email lists. In most of the countries the recipients must voluntarily opt-in to receive your emails and provide a consent that you simply can not buy.
For these and other reasons we are not willing to sell or trade mailing lists. Using mailkit you can start building your own mailing list right away.