If you're going to be sending any number of emails you need an autoresponder.
An autoresponder is a third party service which sends out the emails on your behalf.
They deal with all the hassle of getting inboxed, managing the database of email addresses and;
Dealing with spam issues.
This is important.
Because if you start trying to email a list of addresses you just bought then these people are going to complain - in droves.
They didn't enter their email address willingly to hear from you.
Even if the original list-owner did things by the book;
These email addresses belong to people who never gave their permission to receive emails from you.
And if you break the GDPR rules in Europe your organization could be hit with the maximum penalty which is $24.1 Million.
Getresponse says; "You shouldn’t ever purchase an email list."
They are clear in their terms about not buying email list;
"GetResponse strictly prohibits users from renting, leasing and/or purchasing email addresses from a third party, as well as from gathering them through surreptitious methods, such as scraping or harvesting."
"Importing or in any way using purchased leads with an AWeber account is strictly prohibited. If you paid money or in any way purchased a group of pre-existing leads, these may not be used with AWeber. This includes co-registration services, "safe lists" or any type of free leads given to you. Only people that have specifically requested information directly from you may be emailed through AWeber."
"By agreeing to these Terms, you promise to follow these rules. You won’t send spam! You won’t use purchased, rented, or third-party lists of email addresses."
But let's just say - you still want to run the risk...
What exactly would happen?