DMARC Checker

Interactive tool to analyze DMARC email authentication records for domains.

Features

• Interactive Console Interface: User-friendly menu for checking domains
• Single or Multiple Domain Checks: Check one domain or multiple domains at once
• Predefined Italian Companies List: Quick check for major Italian services
• Flexible Output: View results in console or export to CSV
• DNS Query Analysis: Parses DMARC policies including:
  • Policy settings (p, sp)
  • Alignment modes (adkim, aspf)
  • Reporting addresses (rua, ruf)
  • Filtering percentage (pct)

Installation

pip install dnspython pandas

Usage

Run the interactive console:

python check.py

Menu Options

1. Check a single domain - Enter any domain (e.g., example.com)
2. Check multiple domains - Enter comma-separated domains (e.g., google.com, amazon.com)
3. Check predefined list - Analyze Italian companies from the built-in list
4. Exit - Close the application

Additional Tools

mywhois.py

Domain registration checker for WHOIS information lookup.

python mywhois.py

What is DMARC?

DMARC (Domain-based Message Authentication, Reporting, and Conformance) is an email authentication protocol that helps prevent email spoofing and phishing attacks by validating the sender's identity.

Author

Edoardo Ribichesu