Free Email Aliases
For Custom Domains
The best ImprovMX alternative with unlimited free aliases, advanced webhook integration, and powerful API access. Perfect for developers, AI agents, and growing businesses.
No credit card required • Set up in 2 minutes • Forever free tier
Why Choose Inbound Over ImprovMX?
ImprovMX
inbound by exon
Everything You Need for Custom Domain Email
1 Free Domain
Connect one custom domain completely free. Verify ownership with simple DNS configuration and start receiving emails instantly.
Infinite Email Aliases
Create unlimited individual aliases like hello@, support@, sales@ or set up a catch-all to receive emails sent to any address on your domain.
Granular Email Blocking
Advanced blocking controls let you stop spam from specific addresses, domains, or patterns while keeping your catch-all active.
Webhook Integration
Connect your email to any service or AI agent with reliable webhook delivery. Perfect for automation and custom workflows.
AI-Ready API
Full REST API and TypeScript SDK for developers. Build email-powered AI agents and automate your email infrastructure.
Enterprise Security
Built on AWS with enterprise-grade security, SPF/DKIM/DMARC support, and comprehensive email verification for high deliverability.
Built for Developers & AI Builders
Unlike ImprovMX, Inbound is designed from the ground up for developers who need programmatic email control and AI integration.
TypeScript SDK Example
import { createInboundClient } from 'exon-inbound'
const client = createInboundClient({
apiKey: process.env.INBOUND_API_KEY
})
// Create a new email address
await client.emails.create({
email: 'support@yourdomain.com',
webhookUrl: 'https://api.yourapp.com/webhook'
})
// Set up catch-all for entire domain
await client.domains.setCatchAll({
domain: 'yourdomain.com',
webhookUrl: 'https://api.yourapp.com/webhook',
blockList: ['spam@', 'abuse@']
})Developer Experience
AI Integration
Migrate from ImprovMX in Minutes
Switching from ImprovMX is simple. Keep your existing email addresses working while you transition to unlimited aliases and advanced features.
Connect Your Domain
Add your domain to Inbound and verify ownership with DNS records.
Configure Email Routing
Set up your aliases or catch-all configuration with advanced blocking rules.
Update DNS & Go Live
Update your MX records to point to Inbound and start receiving emails.
Transparent Pricing - No Surprises
Start free and scale as you grow. Unlike ImprovMX, our free tier includes unlimited aliases on one domain.
Ready to Switch from ImprovMX?
Join thousands of developers and businesses who have made the switch to unlimited email aliases and advanced automation.
✓ No credit card required ✓ 5-minute setup ✓ Unlimited aliases ✓ 24/7 support