# Validation

Post-migration testing and verification procedures.

## Overview

Validation ensures that migrated systems and data are functioning correctly in the new self-hosted environment.

## Key Areas to Validate

### 1. User Access
- Can users log in?
- Are permissions correct?
- Does SSO work if configured?

### 2. Data Integrity
- Are all files present?
- Do file sizes match?
- Are timestamps preserved?

### 3. Email Functionality
- Can users send/receive email?
- Are folders and messages intact?
- Do aliases work?

### 4. Document Search
- Does search return results?
- Are documents accessible?
- Is indexing complete?

## Testing Approach

### Smoke Testing
Quick tests to verify basic functionality:
- Login test
- Send test email
- Search for known document
- Access key files

### User Acceptance Testing
Have actual users verify:
- Their data is present
- Workflows still function
- Performance is acceptable

### Load Testing
If applicable:
- Concurrent user access
- Large file transfers
- Search performance

## Common Issues

### Authentication Problems
- Wrong credentials
- Certificate issues
- Domain configuration

### Missing Data
- Incomplete transfers
- Permission errors
- Format incompatibilities

### Performance Issues
- Slow searches
- Network bottlenecks
- Resource constraints

## Validation Checklist

- [ ] All users can authenticate
- [ ] Email send/receive works
- [ ] Files are accessible
- [ ] Search returns results
- [ ] Backups are working
- [ ] Monitoring is active

## Next Steps

- [Overview](./overview.md) - Return to migration overview
- [Common Concepts](./common-concepts.md) - Migration fundamentals