RESOURCES
Direct Mail Resources
Everything you need to plan, design, and run a direct mail campaign — guides, stats, postcard templates, a glossary, and help docs. Built for small business owners running their own marketing.
Blog
Tactical articles on direct mail strategy, vertical-specific playbooks, and what's working right now.
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Case Studies
Real campaign examples by vertical — dental recall, HVAC tune-ups, optometry annual exams, and more.
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Postcard Templates
Battle-tested postcard designs for 25+ industries. Built around offers and CTAs that actually book appointments.
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Direct Mail Glossary
Plain-English definitions for the terms direct mail people throw around — EDDM, NCOA, presort, response rate, and 20+ more.
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Direct Mail Response Rates
Benchmark response rates by industry, list type, and offer — sourced from DMA, ANA, and industry studies.
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Help Center
How-to docs for using PostKnock — importing contacts, designing postcards, multi-wave campaigns, call queue, QR tracking.
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Free Tools
ROI calculator, postcard designer, and more — browser-based, no signup required.
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Compare Direct Mail Tools
PostKnock vs Lob, Postalytics, Cactus Mailing, Mailjoy, PostcardMania, Wise Pelican. Honest side-by-side guides.
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Popular guides
The Dental Recall Postcard Guide
How to bring back lapsed patients with a 3-wave reactivation campaign.
HVAC Fall Tune-Up Postcard Templates
Seasonal templates that drive pre-winter tune-up bookings.
Postcard Marketing ROI
How to calculate break-even response rates and projected returns before you send.
Postcard + Call Reactivation
The one-two punch that turns mailed postcards into booked appointments.
Direct Mail vs Email
When each channel works — and why most service businesses use both.
Patient Recall Best Practices
Timing, frequency, and offer design for dental, optometry, and chiropractic recall.
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