Basic questions

What is Who’s Mailing What!?

Being the world's most complete online library of direct mail samples, sales letters, postcards and flyers, Who’s Mailing What! is the go-to resource for direct marketers, copywriters, designers and everyone involved in direct mail marketing. WMW! provides information on hundreds of thousands of direct mail packages and promotional emails from across U.S. markets since 1978.

Who can benefit from Who’s Mailing What and how?

  • Service providers seeking leads– WMW! is a lead source to assist you in acquiring new customers. You can receive real-time notification of new mailers added to the database allowing you to pitch your services to known and active mailers.
  • Direct marketers researching the competition– simply type the name of the competitor into the search box and see the mail campaigns that were sent on behalf of this company.
  • Creative people seeking inspiration– WMW! opens up a new world for those searching for new ideas and success stories in order to boost their own marketing efforts.

Is it just direct mail pieces or is there also digital?

There are more than 2 million emails stored in our archives. As we are now focused on collecting direct mail pieces, the email database is not being updated regularly. However, we always listen to our clients - so if you want us to keep growing the email database, please let us know!

Is it legal?

We are not responsible for the way you use the copies received via our service. As such, legality relies fully upon how you plan to use these materials. All rights to the mail piece belong to the originating company and are protected by copyright law. Our goal is to provide you with an inspiration source to help you create your unique mail campaigns and boost your own marketing efforts.

Advanced questions

What are the “Controls”?

These are mail pieces that have been used repetitively with success.

What are the Grand Controls”?

These are direct mail letters and mailers that have been used for years with great success.

Database details

How many categories does Who's Mailing What! Cover?

WMW! covers 22 categories that are divided into more than 85+ subcategories for your convenience.

What industries does Who’s Mailing What collect?

Here are the categories we have: Financial Services/Investments, Insurance, Non-Profits/Fundraising, Publishing, Retail, Telecom/Technology and Travel. Please see the full list of categories and subcategories here.

What is the format of the mail pieces?

All the mail pieces are now stored in PDF format.

How often do you update your database?

We receive daily updates and post them weekly.

How many mail pieces do you have in your database?

Now WMW! has more than 93400 mail pieces in its database and this number continues to grow.

How does Who’s Mailing What collect their mail samples?

We have about 100 panelists from across the U.S. who contribute mail pieces to us on a regular basis.

Cooperating with WMW

Can I participate in providing creatives?

Yes, we welcome new contributors! Please get in touch with us and we’ll provide you with more details.

Who’s Inspired by What

What is Who’s Inspired by What?

The service that will connect the 1.2 terabytes of WhosMailingWhat! data with our own dataset of 1.4 billion U.S. consumer characteristics to help you send the right creative to the right person.

How does it work?

We utilize AI-powered solutions to analyze your customer file and segment your audience according to their preferences.


What are the pricing plans and how can I buy WMW subscription?

We have different pricing plans depending on your needs:
  • Archive Subscription (ability to access historical archives up to 2017)
  • "Real Time" Updates (access to historical archives, plus weekly updates)
To get more details on pricing, please book a demo.

Do you offer a discount for non-profits?

Yes, non-profit organizations qualify for special pricing. Please contact us and we’ll share more details.