mailer
/ˈmeɪlə(r)/noun
1
- chiefly N. Amer. the sender of a letter or package by post〈主北美〉寄信人; 发件人。
1.1
- a person employed to dispatch newspapers or periodicals by post报刊递送人。
1.2
- a free advertising pamphlet, brochure, or catalogue sent out by post邮递广告; 邮递宣传品。
1.3
- a container used for conveying items by post邮件运送箱。
2
- Computing a program that sends electronic mail messages【计算机】电子邮件发送程序。