mail shot
n.— «Supposing that I decided to rent the mailing lists of other people and send those potential customers a letter (usually referred to as a ‘mail shot’), I might reasonably get between 1% and 2% of those people to buy from me.» —“How to manage win-win-win situations using Joint Ventures” Best-of-the-Internet Website Traffic Resources May 7, 2006. (source: Double-Tongued Dictionary)
Further reading
If you speak a second or third language, you may remember the first time you dreamed in that new tongue. But does this milestone mean you’re actually fluent? And a couple’s dispute over the word regret: Say you wish you’d been able...