How to Build Your Own Postale.io
Replace Postale.io with a custom build. Domain emails made easy
Build Difficulty: 5/5
Build a working replacement in a weekend with AI tools
Estimated Timeline
Based on 41 features at Weekend Project difficulty, expect about One weekend with AI-assisted development.
Recommended Tech Stack
Full-stack React framework with API routes and server components
PostgreSQL database, auth, and real-time subscriptions
Utility-first styling for rapid UI development
Transactional and marketing email delivery
Key Features to Replicate
Top features across 8 categories. See all 41 features
Management(11 features)
Intuitive admin panel to manage email addresses and domain settings with different permission levels for administrators and email owners
Set up automatic replies to incoming emails
Support for DAV address books in webmail
Set up a catch-all address to receive emails sent to any address on your domain
Set up email forwards for your domains
+6 more in this category
Security(11 features)
24/7 monitoring of abnormal activity and daily DNSBL checks
Antivirus engine for detecting trojans, viruses, and other malware using ClamAV
Mailbox data encrypted at rest using AES-256 algorithm at the file system level
Full support for DKIM (DomainKeys Identified Mail) for email authentication
Full support for DMARC (Domain-based Message Authentication, Reporting and Conformance)
+6 more in this category
Access(3 features)
Compatible with all major email clients including Gmail, Outlook, Thunderbird, Apple Mail, and Spark
All email addresses come with POP3 and IMAP enabled by default for use with any email client
Industry-standard Roundcube webmail accessible from any device with clean UI, contact management, folders, and signatures
Reporting(2 features)
Detailed logging of email and authentication activities
Daily statistics of mailbox activity and overall domain activity
Support(2 features)
24/7 priority customer support
Reactive level 3 support that is easy to reach
Trial(2 features)
Try the demo with no sign-up required
Free trial for 30 days with no credit card required
Backup(1 features)
Daily backups of all mailboxes stored on a separate continent
Collaboration(1 features)
Support for DAV calendars in webmail
Cost Calculator
Keep Paying Postale.io
Build It Yourself
Total Cost Comparison
DIY hosting estimate based on Vercel + Supabase free/pro tiers (~$20/mo). Build time estimated from 41 features at very easy complexity.