Leadmark
Hackathon Submission
Postmark Challenge: Inbox Innovators

Email-First Collaboration
Reimagined

Built for the Postmark Challenge, Leadmark transforms email from a simple messaging tool into a powerful, interactive platform using Postmark's Inbound Email Processing. Manage projects, collaborate with teams, and automate workflows—all through email.

Postmark Inbound
Next.js 15
Supabase
Real-time Updates
🏆 Submission for DEV.to × Postmark Challenge • Built with ❤️ for developers

See it in action

Watch how Postmark transforms email into powerful workflows

Demo Video
Email → Workflow
2:15

How it works

Your AI assistant handles business communications automatically

1

Golden Opportunity

A Fortune 500 company emails expansion@leadmark.email interested in a massive rollout while you're enjoying family dinner.

To: expansion@leadmark.email
Subject: Enterprise rollout for 50,000 users
Hi! We saw your product demo and want to discuss expanding from our pilot to all 50k employees. What's our timeline and pricing for Q1 launch?
2

AI Seizes the Moment

AI instantly recognizes this as a mega-deal, sends tailored enterprise proposal, implementation timeline, and exclusive pricing.

Hi James,

Fantastic timing! For 50k users, here's what we can offer:

✅ Custom enterprise pricing: $8/user (vs $15 standard)
✅ Dedicated Q1 implementation team
✅ White-glove onboarding & training

I've reserved this pricing for 48 hours and scheduled our enterprise team for a deep-dive tomorrow.
3

Million-Dollar Win

Wake up to an excited response and meeting confirmed. AI captured a $4.8M annual deal opportunity while you were offline.

$4.8M Deal Pipeline • Meeting Tomorrow
Enterprise pricing locked • Implementation team assigned • Deal fast-tracked

Life-Changing Edge Cases That Actually Matter

urgent@leadmark.email
Crisis Prevention: Fortune 500 client threatens lawsuit at midnight over data breach fears. AI immediately provides security certificates, compliance docs, and schedules emergency C-suite call. $2M contract saved.
lastchance@leadmark.email
Win-Back Magic: Your biggest client emails saying they're switching to competitors. AI analyzes their usage, offers perfect retention package, and books CEO dinner—all while you're at your kid's recital. $500k ARR retained.
investor@leadmark.email
Funding Opportunities: VC partner emails at 2 AM asking for pitch deck after seeing your product demo. AI instantly sends tailored deck, recent metrics, and books meeting for next week. Series A opportunity.
acquire@leadmark.email
M&A Intelligence: Acquisition offer arrives from Google while you're on vacation. AI flags legal sensitivity, forwards to lawyer, schedules board meeting, and sends professional holding response. $100M exit process started.
The Reality: You're Missing Million-Dollar Moments
Every hour you're not available, competitors are. Every delayed response costs deals. Every urgent email that goes unanswered could be your breakthrough moment. Your AI assistant never sleeps, never misses an opportunity, and never lets a crisis become a catastrophe.

See Postmark Inbound in Action

Watch how incoming emails get transformed into actionable data through Postmark's powerful webhook system

Email Processing Flow

1
Email Sent to Postmark
Customer emails: support@leadmark.email
2
Postmark Processes & Parses
Headers, body, attachments → JSON payload
3
Webhook to Leadmark
Real-time POST to our Next.js API route
4
AI Processing & Storage
OpenAI analysis + Supabase real-time updates

Inbound Webhook Handler

Live Code
// app/api/inbound/route.ts
export async function POST(request: Request) {
  const payload = await request.json();
  
  // Extract email data from Postmark
  const {
    From, Subject, TextBody, 
    HtmlBody, Attachments
  } = payload;
  
  // AI-powered content analysis
  const analysis = await openai.analyze({
    subject: Subject,
    content: TextBody,
    intent: 'task_creation'
  });
  
  // Create thread in real-time
  const { data } = await supabase
    .from('threads')
    .insert({
      contact_email: From,
      subject: Subject,
      content: TextBody,
      ai_analysis: analysis,
      status: 'active'
    });
    
  return Response.json({ success: true });
}

Built for Postmark Challenge

Our innovative approach to the "Inbox Innovators" challenge: transforming email from a messaging tool into a powerful workflow automation platform.

Challenge Response

The Brief

"Do something cool with Inbound Email Processing"

Our Solution

Email-first collaboration platform where every email becomes an interactive workflow trigger

Innovation

Turn any email address into a powerful API endpoint using Postmark's inbound processing

Technical Stack

Postmark Inbound
Email → JSON
Next.js 15
Webhook Handler
Supabase
Real-time DB
OpenAI
Content Analysis

Development Stats

3.2ms
Webhook Response
127
Test Emails
98%
Parse Accuracy

Experience Email Innovation

See how Postmark's Inbound Email Processing can transform your workflow. This demo showcases the future of email-driven applications built for the DEV.to challenge.

Hackathon Submission Details

Challenge
Postmark Challenge: Inbox Innovators
DEV.to × Postmark
Innovation Focus
Inbound Email Processing
Email-First Workflows
Tech Stack
Next.js 15, Postmark, Supabase
OpenAI, Tailwind CSS