Instant Access
No registration, no waiting. Start receiving emails in seconds with our temporary email service.
100% Free Forever • No Signup Required
Free Disposable Email API With Custom Domain Support
Create temporary email addresses instantly for testing and privacy.REST API • Bring Your Own Domain • Auto-delete in 7 days
No Registration
Auto-Delete After 7 Days
Free Public API
Bring Your Own Domain
Why Choose Catchmail?
Everything you need for disposable email and email testing
Privacy First
No tracking, no data collection. Your privacy is our priority with anonymous email addresses.
Free REST API
Powerful REST API for automation and email testing. Completely free with no authentication required.
Auto-Delete
Messages automatically deleted after 7 days. No clutter, no traces of your throwaway emails.
Custom Domain Email
Bring your own domain for disposable email. Point MX records and you're ready to receive.
Private Domains
Your custom domain is private. Only you can access emails sent to your domain via API.
100% Free Email API
Powerful API for Developers
Integrate disposable email into your testing workflow with our REST API
# List messages in a mailbox
curl "https://api.catchmail.io/api/v1/mailbox?address=test@catchmail.io"
# Get a specific message
curl "https://api.catchmail.io/api/v1/message/{id}?mailbox=test@catchmail.io"
# Delete a message
curl -X DELETE "https://api.catchmail.io/api/v1/message/{id}?mailbox=test@catchmail.io"Simple & RESTful
Clean REST API with JSON responses. No authentication required for public endpoints - just start using it!
- List mailbox messages
- Read individual messages
- Delete messages
- Download attachments
Fair & Fast
Built for developers with reasonable limits and instant responses.
- 1 request per second per IP
- Instant message delivery
- Real-time mailbox updates
- 99.9% uptime guarantee
Bring Your Own Domain
Use your own domain for a completely private disposable email setup
How Custom Domain Email Works
- 1
Point Your MX Record
Add an MX record pointing to
smtp.catchmail.io - 2
Start Receiving
Immediately start receiving emails at any address @yourdomain.com
- 3
Private API Access
Your domain is private - only you can access your emails via API
DNS Configuration
# Add this MX record to your DNS:
Type: MX
Host: @
Value: smtp.catchmail.io
Priority: 10Complete Privacy for Custom Domains
Custom domains are never listed publicly. Only you can access emails sent to your domain. Perfect for private testing environments and automated email testing workflows.
Trusted by Developers
Join thousands using Catchmail for testing
0+
Messages Received
0+
Active Mailboxes
0+
API Requests Daily
0%
Uptime
Loved by Developers
What Developers Say
Trusted by teams around the world
"Catchmail has become essential for our testing workflow. The API is simple, fast, and the fact that it's free is incredible."
AC
Alex Chen
Full Stack Developer
"Finally a disposable email service that actually works! Custom domains are a game changer for our testing environments."
SJ
Sarah Johnson
QA Engineer
"We use Catchmail for all our automated tests. Reliable, fast, and the 7-day auto-delete keeps everything clean."
MR
Mike Rodriguez
DevOps Lead
Frequently Asked Questions
Everything you need to know about Catchmail
How long are messages stored?
Messages are automatically deleted after 7 days. This ensures your privacy and keeps the service running efficiently for everyone.
Is the API really free?
Yes! Our public API is completely free to use with no authentication required. Fair usage limits apply to ensure service reliability for everyone.
Can I use my own domain?
Absolutely! Just point your domain's MX record to smtp.catchmail.io and you're ready to go. Your domain will be completely private - only you can access emails sent to it.
Do you read my emails?
Never. We have zero interest in your data. Messages are stored temporarily and automatically deleted. We don't track, analyze, or share anything.
What are the rate limits?
The API has a fair usage limit of 1 request per second per IP address. This ensures reliable service for everyone while remaining completely free to use.
Can I delete messages manually?
Yes! You can delete individual messages at any time through the web interface or via the DELETE API endpoint.
Ready to get started?
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No signup, no credit card, no BS. Just enter an email address and start receiving messages instantly.
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