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About

Postmarkr is a web application that lets you send physical USPS mail entirely online. Upload a PDF, enter a recipient address, pay, and we handle printing, stamping, and mailing via USPS. Supports letters, certified mail with return receipts, and postcards. Features include real-time USPS tracking, address verification, and a simple pay-per-piece pricing model starting at $1.50 per letter. No subscriptions or minimums required. Built for small businesses, law firms, healthcare practices, property managers, and solo practitioners who need to send official mail without visiting the post office.

About

Who’s Mailing What! is a competitive intelligence platform and searchable database of direct mail and email marketing campaigns that gives marketers, copywriters, designers, and direct mail professionals access to hundreds of thousands of real direct mail pieces, sales letters, postcards, flyers, and archived emails from U.S. markets across more than 85 sub-categories and 21 primary industry categories. Users can search by keyword, competitor, or format to uncover successful creative elements, headlines, offers, designs, and promotion styles, track which businesses are actively mailing, view exact campaign creatives in PDF format, and gain insights into what’s working in their verticals. It also provides real-time notifications of new campaigns, full-text search via machine learning and OCR, and weekly updates to the database to help stay on top of industry trends, benchmark competitive activity, and inspire more effective direct mail strategies.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Small businesses, law firms, healthcare practices, property managers, solo practitioners, remote workers

Audience

Direct marketers, copywriters, and advertising professionals looking for competitive direct mail campaign examples and creative insights to improve their own direct marketing results

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$1.50
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

Postmarkr
Founded: 2025
United States
postmarkr.com

Company Information

Who's Mailing What!
Founded: 1978
United States
www.whosmailingwhat.com

Alternatives

Alternatives

DM20.ai

DM20.ai

DirectMail2.0
DirectMail2.0

DirectMail2.0

DirectMail2.0, LLC.

Categories

Categories

Integrations

No info available.

Integrations

No info available.
Claim Postmarkr and update features and information
Claim Postmarkr and update features and information
Claim Who's Mailing What! and update features and information
Claim Who's Mailing What! and update features and information