mailing, n. [Scot., fr. mail tribute, rent. See 2d Mail.].
A farm. Sir W. Scott. [1913 Webster]
mailing, n.
The act or process of sending materials through the mail. [PJC]
A quantity of mail, such as letters, magazines, advertising brochures, etc., sent at one time by one person or organization; as, the ads with coupons will go out in our next mailing. [PJC]