$3,000 Spent. $31,000 Profit.
37 Days.
Handwritten postcards that actually get read. Real pen and ink on BOTH sides. 5.4x higher response rate vs printed mail. Investors, agents, and brokers averaging 1.89% response — 3-5x industry standard.
“You're the only one I've called back…it was that postcard.”
Actual seller voicemail
Starting at $1.10/piece • First deals closing within 2 weeks • Avg 1.89% response rate
Trusted by real estate pros nationwide
Hear It From Real Investors
6 investors share their results on camera, no scripts
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.”
Why Both Sides Matter
Our DoubleCard delivers 5.4x the response rate of single-sided competitors. Hover the dots to see why.
Message Side
Personalized
Every card addresses the homeowner by first name — not "Dear Homeowner"
Fully Customizable
Write whatever you want — your message, your voice, your angle. Every word is yours to choose.
Real Pen & Ink
Not printed to look handwritten. Actually written with a ballpoint pen by a real person.
Your Info
Your name and phone number, handwritten. Feels like a personal note from a neighbor.
Address Side
Your Return Address
Handwritten return address. Looks like it came from a friend, not a company.
Handwritten Addressing
Even the recipient's address is pen & ink. No printed labels. Passes the junk mail test.
Both Sides Used
Competitors leave this blank or machine-print it. We handwrite it. That's why 5.4x.
Why it works
“People call and say 'I got your letter' — it passes the junk mail test”
“These aren't just leads — they're conversations. The personal connection is real.”
“When people see both sides handwritten, they start to help you. They tell their neighbors.”
“Out of all people wanting to buy this house, yours is the only handwritten one!!!”
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
Handwritten Mail That Gets Read
Same mechanism, same response rates. Whether you're buying, selling, or managing — a handwritten card cuts through the noise.
Cash offer campaigns to motivated sellers
- Absentee owner outreach
- Pre-foreclosure campaigns
- Probate & inherited property
- Vacant land offers
Shawn spent $3K, closed $31K in 37 days
Geographic farming that actually gets read
- Just listed / just sold
- Neighborhood farming
- Sphere of influence touches
- Open house follow-ups
Stay top of mind for a fraction of what Zillow charges
Tenant outreach that doesn't end up in the trash
- Lease renewal reminders
- New property announcements
- Owner acquisition campaigns
- Vacancy reduction outreach
Higher response rates on lease renewals and offers
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.
Phones Start Ringing
Every postcard is written with real pen and ink and mailed for you. Delivered in 3-5 business days. Kapil closed his first deal in 2 weeks. Shawn's phone rang on day 3.
Built for Developers
Full REST API with webhooks. Automate your direct mail pipeline.
# Create a campaign order curl -X POST https://api.mailbots.net/v1/orders \ -H "Authorization: Bearer mb_live_..." \ -H "Content-Type: application/json" \ -d '{ "campaign_type": "handwritten", "quantity": 1000, "message": "Hi {{first_name}},\n\nI noticed your property..." }'
Real-time delivery data — polled every 15 min via USPS Intelligent Mail
Full OpenAPI spec, SDKs, and webhook signing included.
Read the docsSee the handwriting for yourself
Type anything below — our AI generates unique handwriting in real-time
Every postcard gets unique handwriting — no two are alike
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.
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
- 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 DoubleCard 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.
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.
Real Investors. 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 investors average a 1.89% response rate and close deals within weeks of their first campaign. He'll review your market, help craft your message, and build a list strategy that actually gets responses.
If your market isn't a good fit, Ryan will tell you. No pressure, no obligation.
Your Competition Is Still Sending Printed Mail at 0.40%
Investors, agents, and brokers are closing deals with handwritten mail that actually gets read. Shawn spent $3,000 and made $31,000 in 37 days. They all started with a single order.
Starting at $1.10/piece • 5.4x split test advantage • 1.89% avg response rate