⚙️ Configuration

File Selection

Input

• Input File: TXT or CSV email list
• Output Directory: Auto-generated with timestamp

Provider Selection

Provider Categories

• All Providers: Process every detected provider
• Business Providers: Corporate email domains only
• Free Providers: Personal email services only
• Select specific providers from the list

DNS Validation

Settings

• Validate MX Records: Verify mail server existence (default: true)
• Check SPF Records: Verify sender policy framework (default: false)

Performance

Threading

• Thread Count: 1-100 concurrent workers (default: 10)
• Recommended: 10-20 for most systems
• Higher values use more resources

Output Options

Save Settings

• Separate Business/Free Emails: Split by provider type (default: true)
• Save Invalid Emails: Keep malformed addresses (default: true)
• Save Others with MX: Unknown domains with valid MX (default: true)
• Save Others without MX: Domains without mail servers (default: true)

CSV Options

Format Settings

• First Row Contains Headers: Skip header row (default: true)
• Column Delimiter: Comma, Semicolon, Tab, or Pipe (default: comma)

Output Structure

Sift creates these output files based on settings:

• {provider}.txt - One file per selected provider
• business_providers.txt - All business emails (if separation enabled)
• free_providers.txt - All free email providers (if separation enabled)
• others_with_mx.txt - Unknown domains with valid MX records
• others_without_mx.txt - Domains without MX records
• invalid.txt - Malformed email addresses