direct-mailer

[ dih-rekt-mey-ler, dahy- ]
/ dɪˈrɛktˈmeɪ lər, daɪ- /

noun

a person or firm engaged in direct-mail advertising.
a letter, advertisement, or other item sent out in direct mail.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019