Noun:

MailShot,

mailshots's Usage Examples:

Charities sometimes include such sheets in mailshots.

Gnam would even rent and send mailshots to other marketers' "No lists"—that is, mailing lists of sweepstakes participants.

The company advertised in newspapers, on radio and TV and through mailshots, inviting customers to attend a free property investment session.

and as a key image in their marketing strategy including magazines and mailshots.

offices were raided in 1999, however, owing to a spate of anti-Semitic mailshots originating from Colin Jordan.

"ASA slams 'intimidating' Domain Registry of Europe mailshots".