Direct Mail You Can Actually Measure
Email has Mailchimp. Ads have Google Analytics. Direct mail has had nothing—until now. Per-piece delivery tracking, QR response attribution, and real-time analytics for every postcard you send. Handwritten or printed.
“You're the only one I've called back…it was that postcard.”
Actual recipient voicemail
Starting at $0.75/piece • Per-piece tracking included • Avg 1.89% response rate
Trusted by businesses nationwide
Track Every Piece. Know Every Delivery.
Real-time delivery tracking for every single mail piece in your campaign.
Delivery Breakdown
Live Piece Status
LiveJames Ortega
Denver, CO
Maria Chen
Tampa, FL
Derek Williams
Phoenix, AZ
Sandra Kim
Austin, TX
Robert Patel
Nashville, TN
Lisa Thompson
Charlotte, NC
Know Exactly Who Responded
Every QR code is unique. Track exactly who responded to which mail piece.
Each postcard carries a unique QR code linked directly to that recipient. When they scan, you know who, when, and where.
Scan Timeline
14 days post-mailing • peak activity days 5–8
Device Breakdown
Top Cities
Validate Every Address Before You Print
CASS-certified address validation catches bad addresses before they waste your money.
| Name | Address | City | State / ZIP | Status |
|---|---|---|---|---|
| Michael Chen | 4521 Oak Ridge Dr | Denver | CO 80205 | |
| Sarah Williams | 892 Pine Valley Ln | Tampa | FL 33601 | |
| Robert Martinez | 1137 Elm Street | Phoenix | AZ 85001 | |
| Lisa Thompson | 6743 Cedar Ave | Austin | TX 78701 | |
| James Anderson | 2218 Maple Ct | Nashville | TN 37201 | |
| Patricia Davis | 5590 Birch Way | Portland | OR 97201 | |
| David Wilson | 3341 Spruce Blvd | Charlotte | NC 28201 | |
| Jennifer Brown | 9912 Willow Rd | Seattle | WA 98101 | |
| Christopher Lee | 7784 Ash Dr | Atlanta | GA 30301 | |
| Amanda Garcia | 1456 Hickory Ln | Miami | FL 33101 |
8 of 10 addresses verified
2 undeliverable addresses caught before printing
$2.54 saved
at $1.27/piece
Powered by CASS-certified SmartyStreets validation. Undeliverable addresses are removed before your order is printed — you only pay for mail that can actually be delivered.
How It Works
From list to mailbox in four simple steps.
Upload Your List
Takes 2 minutes. Upload your CSV or Excel file with recipient addresses. We handle all the formatting.
Customize Your Message
Write your message for both sides of the postcard using proven templates that pull 1–5% response rates. Personalization tokens supported.
Approve Your Proof
You don’t pay until you approve. Review a digital proof before we print a single postcard. No surprises.
Track Your Results
Postcards are mailed within 3-5 business days. Track every piece through USPS delivery, see QR scan responses in real time, log revenue and calls, and measure your exact campaign ROI in the dashboard.
Hear It From Real Customers
Real business owners share their results on camera — no scripts, no edits
Unfiltered. Unscripted. Unedited.
Real texts from real clients and real sellers. Screenshots straight from iMessage — nothing staged.
"Out of all people wanting to buy this house, yours is the only handwritten one!!!"
— Seller who received a Mailbots postcard
"$10,065.44 marketing spend with ~$80k in projected profits."
— Tyler — Mailbots client
"This response rate is nuts. Phones are erupting off the hook."
— Johnny — Mailbots client
"I'm pulling the plug on them this month and doubling down with you."
— Client switching from competitor
"I highly recommend using Rob's handwritten postcard mailing company. We just put a deal under contract from the first 50 calls that will bring in 10x."
— Tom Robinson — Real Estate Telegram Group (401 members)
Two Split Tests. Same Result.
36,434 postcards across two independent head-to-head tests. Mailbots won both.
Test 1 — Omaha
16,4345.4x
higher response rate vs competitor
Test 2 — Tampa
20,0001.85x
higher response rate vs competitor
Do the Math
Your campaign, your numbers7x
projected return
Printed vs Handwritten ROI
Printed: $0.85/ea × 0.8% response = $106/response
Handwritten: $1.20/ea × 1.89% response = $63/response
Handwritten costs 1.4x more but generates 2.4x more responses = 1.7x better ROI
Based on $7.65 avg revenue per postcard from tracked campaigns
“We ran the same list, same area, same time period. Mailbots crushed it. The numbers don't lie.”
Built for Developers
Full REST API with webhooks. Automate your direct mail pipeline.
# Create a campaign order curl -X POST https://api.mailbots.ai/v1/orders \ -H "Authorization: Bearer mb_live_..." \ -H "Content-Type: application/json" \ -d '{ "campaign_type": "handwritten", "quantity": 1000, "message": "Hi {{first_name}}, I wanted to reach out personally..." }'
Real-time delivery data — polled every 15 min via USPS Intelligent Mail
Full OpenAPI spec, SDKs, and webhook signing included.
Read the docs28 Data Points Per Piece. Zero Guesswork.
Every postcard becomes a trackable, measurable marketing event—just like an email or ad click. Use our dashboard or pipe it all to your CRM.
Per-Piece Delivery Timeline
Every USPS facility hop, every scan, every timestamp. Origin → intermediate → destination → delivered. Know exactly where each piece is right now.
Return Intelligence
Don’t just know mail bounced — know WHY. Moved, vacant, refused, no such address. Auto-capture forwarding addresses for your next campaign.
QR Response Attribution
Unique QR code per piece. Know WHO responded, WHEN, from WHAT device, in WHAT city. UTM params auto-appended to flow into Google Analytics.
Pre-Print Address Validation
CASS-certified DPV confirmation before a single piece prints. Never waste postage on undeliverable addresses. Bad addresses flagged automatically.
Real-Time Webhooks → Your CRM
11 event types, HMAC-SHA256 signed. Push every delivery, every return, every QR scan straight to your CRM, Zapier, or any system — in real-time.
REST API — Your Data, Your Way
Full programmatic access to every data point. Create orders, pull tracking, query analytics. Live + test environments. 17 permission scopes.
The Only Platform With All Four
Handwritten mail + per-piece tracking + developer API + QR attribution. No one else has the full stack.
| Feature | Mailbots | Pen Plotters e.g. Ballpoint | API Platforms e.g. Lob | Handwritten APIs e.g. LettrLabs | Printed Only e.g. Click2Mail |
|---|---|---|---|---|---|
| Price / piece | $1.10 – $1.35 | $1.30 – $1.80 | $0.48 – $0.77 | Quote only | $0.53 |
| Both Sides Pen & Ink | |||||
| Printed Postcards | |||||
| Per-Piece Delivery Tracking | |||||
| QR Response Attribution | |||||
| REST API | |||||
| CASS Address Validation | Pre-print | Post-print | |||
| Webhook Events | 11 types | ||||
| Min. Order | 200 | 500 | 1 | 1 | 1 |
| Split Test Result | 5.4x (2.16% vs 0.40%) | Baseline | N/A | N/A | N/A |
| Response Rate | 2.16% (verified) | ~1% | N/A | N/A | N/A |
| Cost Per Lead | $122 | $214+ | N/A | N/A | N/A |
| Published Split Test Data | |||||
| Video Testimonials w/ $ Amounts | 6 videos | None | None | None | None |
| Revenue Per Postcard | $7.65 avg | Not published | Not published | Not published | Not published |
Pricing data approximate as of early 2026. Always verify current competitor pricing directly.
Simple, Volume-Based Pricing
Every plan includes per-piece tracking, QR attribution, CASS validation, and a real-time dashboard.
200 – 999 pieces
- Both sides written in real ink
- Per-piece delivery tracking
- QR response attribution
- CASS address validation
- 3-5 day delivery
~11 responses expected at 1.89% avg (600 card midpoint)
1,000 – 4,999 pieces
- Everything in Starter
- Priority processing
- Volume savings
- Multi-drop scheduling
- Dedicated support
- REST API + webhooks
~57 responses expected at 1.89% avg (3,000 card midpoint)
5,000+ pieces
- Everything in Growth
- Lowest per-piece price
- Account manager
- Custom integrations
~95 responses expected at 1.89% avg (5,000 card minimum)
The Mailbots Guarantee
If your first campaign of 1,000+ postcards gets under a 0.5% response rate, we'll resend to a fresh list — free. No questions asked.
Need a custom quote? Book a free call with Ryan.
Real Customers. Real Results. On Camera.
Every quote pulled directly from video testimonials — unedited, unscripted.
“We spent $3,000 on our first Mailbots campaign. We got $31,000 returns. Our ROI is 10 times our spend.”
Shawn · Kansas City
“3% response rate on our first campaign. Gross profit was six times our marketing spend. These aren't just leads — they're conversations.”
Tom · Utah
“Up to a 5% response rate on our best campaign. Three contracts signed, 12 to 13 in follow-up pipeline. People call and say 'I got your letter.'”
Ronny · Tennessee
“Now my leading marketing source. I have a potential half a million dollar plus assignment fee in the pipeline directly from Mailbots postcards.”
Marian · Nashville
“First deal within two weeks of sending my first campaign. Response rate is three times what I was getting with printed mail.”
Kapil · South Bend
“2 to 3% response rates consistently. Closed a $125K deal from 1,941 postcards. This is our main way of marketing now.”
Philipp · Nashville
Frequently Asked Questions
Everything you need to know about Mailbots.
Talk to Ryan
Schedule a free strategy call with Ryan. He's helped customers average a 1.89% response rate and see results within weeks of their first campaign. He'll review your goals, help craft your message, and build a campaign strategy that gets responses.
If your market isn't a good fit, Ryan will tell you. No pressure, no obligation.
Your Competitors Can't Track Their Mail. You Can.
Businesses are getting 5.4x better response rates with Mailbots — and tracking every piece in real time. One customer spent $3,000 and made $31,000 in 37 days. They all started with a single campaign.
Starting at $0.75/piece • 5.4x split test advantage • 1.89% avg response rate