The word "whitemail", a coining by analogy with the term "blackmail", typically occurs in economics in the sense of a counter to a hostile merger, but also has meanings in marketing, fundraising, and bribery.

In economics, whitemail is a counter to a takeover arrangement in which the target company will sell significantly discounted stock to a friendly third party. In return, the third party helps thwart takeover attempts by raising the acquisition price for the opposing bidder, diluting the opposing bidder's number of shares, and increasing the stock holdings of the company.