> **Source:** https://knowledge.leegality.com/document-execution/api/security/domain-whitelisting
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# Domain Whitelisting

Domain whitelisting ensures your infrastructure can access Leegality services and third-party eSign providers.

## Whitelisting Domains in Your Infrastructure

If your organization uses firewalls, proxy servers, or content filters, whitelist these domains to ensure proper integration with Leegality.

### Required Domains for Production

```
*.leegality.com 
https://esign.egov.proteantech.in/nsdl-esp/authenticate/esign-doc/ 
https://esign.egov.proteantech.in 
https://api.leegality.com 
https://esign.cdslindia.com/ESign21Web/otp​
https://esign.verasys.in/esp/authpage 
```

> **Info — Why Wildcard Domain?**
>
> Whitelisting `*.leegality.com` ensures all subdomains and microservices are accessible. Without this, you'll need to individually whitelist each subdomain and any new microservices deployed in the future.

### Required Domains for Sandbox

```
*.leegality.com 
https://pregw.esign.egov.proteantech.in​
https://api-sandbox.leegality.com  
https://esignuat.vsign.in/esp/authpage 
https://uatesign.cdslindia.com/ 
https://uatesign.cdslindia.com/ESign21Web/otp 
```

### Email Domain Whitelisting

Whitelist these email addresses to receive notifications:

- **Production**: `noreply@leegality.com`
- **Sandbox**: `noreply-sandbox@leegality.com`

Configure your email security gateway and spam filters to allow emails from these addresses.