The publisher ad server then communicates with a supply-side platform server. The publisher is offering ad space for sale, so they are considered the supplier. The supply side platform also receives the user's identifying information, which it sends to a data management platform. At the data management platform, the user's identifying information is used to look up demographic information, previous purchases, and other information of interest to advertisers.
Third-party companies also compile and sell contact information to companies and organizations. Customer surveys, public records, retail reports, and data software can all be used to collect demographic trends; other companies use only permission-based lists. These companies can usually narrow their mailing lists by demographic—for instance, to only working mothers who have children under three, with at least a bachelor’s degree, who own their own homes, have at least one credit card, a credit score of more than 560, and make $50,000 or more a year. Companies purchase these demographic lisst, and send their direct mail offers to this very targeted market.
If you say, “I want to see what type of response I get from my first email before I send more”, it’s not going to work. Email marketing is marketing, not magic. You wouldn’t expect to get a great return on playing a radio ad or running a TV spot just once. Don’t expect a great return from sending just one email. Tell yourself you’re going to test the effectiveness of email marketing for a period of time (a full year is a reasonable amount of time). Remember that customers will open emails differently depending on the time of year and even the time of day that your email is sent. To get as many customers as possible to open your emails, you need to commit to sending emails over a period of time.