Who’s Mailing What!

Who’s Mailing What! is an online archive of direct mail and promotional email campaigns, founded in 1978. It holds hundreds of thousands of mail packages and emails sent in the United States, sorted by industry. Marketers use it to study what other advertisers send and how their creative is built.

What Who’s Mailing What! offers

• Campaign library — searchable examples of direct mail and email, including credit cards, fundraising, insurance, telecom, catalogues, travel and automotive.
• Competitive research — a way to look up what rivals are mailing and compare offers, headlines and personalisation.
• Lead lists — information on businesses that actively use direct mail, with their contact details.
• Recent campaigns feed — a rolling view of new mailings from the last 90 days.
• Articles and reports — blog posts, monthly reports, ebooks and interviews on direct mail practice.

Who it works with

Marketers, agencies and print suppliers who want creative inspiration or sales leads from active mailers.

Key facts

• Founded: 1978
• Coverage: United States campaigns