Known to advertisers as "targeted mailing," focused direct mail marketing makes us of database analysis. A person who enjoys tennis, for example, is likely to receive direct mail for tennis related products or perhaps for goods and services that are fitting for tennis buffs. The USPS rather terms this as "advertising mail" (admail).
A target business mailing list, consumer mailing list, new home owner mailing list and new mover mailing list must make use of one or more databases that are right on the money, so to speak. There are a quite a few internet sources for free mailing lists and free consumer mailing lists.
Alternatively, you may want to employ a direct mail list broker or a direct mail marketing (telemarketing) list broker to help you form a target mailing list. A good direct mail marketing list will usher in many direct mail leads.