Audience

Small service businesses — dental, optometry, HVAC, chiropractic, veterinary, med spa, home services. Owner-operated SMBs under ~$1M revenue.

About PostKnock

PostKnock is a marketing platform for small service businesses — dental practices, HVAC contractors, optometrists, chiropractors, veterinary clinics, and home services. It combines direct-mail postcards with automated phone follow-up in a single workflow.

Choose a pre-built industry playbook (dental recall, HVAC seasonal, lapsed-patient re-engagement, etc.), upload a contact list, and PostKnock handles printing, USPS First-Class mailing, QR-code tracking, and post-delivery call queues with pre-loaded scripts for your front desk.

Multi-wave campaigns sequence postcards and calls over weeks. CSV import auto-maps fields. Real-time tracking shows delivery, scans, completed calls, and revenue attribution.

Free plan available — only pay for postcards sent. Pro from $99/month unlocks multi-wave sequencing, the full call queue, and analytics. No contracts. 30-day money-back guarantee.

Other Popular Alternatives & Related Software
Postmarkr
Postmarkr
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.
Learn more
Melon Post
Melon Post
Melon Post is a messaging-based service that allows users to send real printed postcards directly through WhatsApp. Instead of downloading an app or creating an account, users simply chat with the service, upload a photo, write a message, and provide the recipient’s address. The platform then generates a preview of the postcard so users can confirm the design before completing payment. Once approved, Melon Post prints the postcard on premium 350gsm glossy cardstock and mails it worldwide. The service handles the entire process from printing to dispatch, making it easy to send physical postcards in minutes. Payments are securely processed through Stripe, ensuring safe and simple transactions. By combining messaging convenience with traditional mail, Melon Post makes sending personalized postcards fast and accessible.
Learn more
Mailjoy
Mailjoy
A DIY tool to design, mail, and track personalized postcard and letter campaigns. Surprise your best customers with a special coupon code during your next sale. Reengage customers who've unsubscribed from your product by offering them a discount. Send personalized real estate postcards with data on the property you're mailing to. Delight your target audience by sending them a personalized card. Send personalized direct mail to welcome new customers to your product or service. Reach customers in your next marketing campaign through email and mail simultaneously. Compared to digital channels, mail is an unsaturated channel that until today has been generally inaccessible and lacked personalization. Mailjoy is the tool to reach customers or prospects with mail that's relevant and timely to them. Start by customizing any of our free postcard and letter templates. Mailjoy provides a ton of features to help you create mailing lists from your contacts.
Learn more
DocuSend
DocuSend
(12 Ratings)
Remotely send your documents directly to the United States Postal Service through our cloud-based mailroom. DocuSend works with any accounting, billing, or CRM software that produces PDF documents containing a valid mailing address. Users can upload directly, or developers can integrate our REST API to offer a "Send Mail" button in their software, either as a reseller or for internal direct connectivity. There are enormous economic advantages for any business or organization that needs to safely print and mail documents on demand. We also offer an automated email service called DocuLink that lets you know which users open the document links sent and makes it easy to follow up with a hard copy if needed. We are sure that one of our features will improve your mailing experience: DocuSend, DocuLink or the Print-To-Mail Rest API will streamline the manual and time-consuming print, mail and email process.
Learn more

Pricing

Starting Price:
$99/month
Free Version:
Free Version available.
Free Trial:
Free Trial available.

Integrations

No integrations listed.

Ratings/Reviews

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

Company Information

MedAlly LLC
Founded: 2026
United States
postknock.com

Videos and Screen Captures

Play Video
Other Useful Business Software
Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
Try Free

Product Details

Platforms Supported
Cloud
Training
Documentation
Support
Online

PostKnock Frequently Asked Questions

Q: What kinds of users and organization types does PostKnock work with?
Q: What languages does PostKnock support in their product?
Q: What kind of support options does PostKnock offer?
Q: What type of training does PostKnock provide?
Q: Does PostKnock offer a free trial?
Q: How much does PostKnock cost?

PostKnock Product Features

Direct Mail Automation

Campaign Management
Delivery Tracking
Event Triggered Mailings
Mailing List Purchasing
Mailing Services Integration
A/B Testing
Data Import/Export
Design Management
Pre-made Templates
List Scrubbing
Printing Services Integration
Response Alerts
Analytics/Reporting
Page Already Claimed. Claim Again?