Cyber security

SpoofCheck – Fortifying Email Defenses By Unmasking Domain Spoofability

A program that checks if a domain can be spoofed from. The program checks SPF and DMARC records for weak configurations that allow spoofing.

Additionally it will alert if the domain has DMARC configuration that sends mail or HTTP requests on failed SPF/DKIM emails.

Usage:

./spoofcheck.py [DOMAIN]

Domains are spoofable if any of the following conditions are met:

  • Lack of an SPF or DMARC record
  • SPF record never specifies ~all or -all
  • DMARC policy is set to p=none or is nonexistent

Dependencies

  • dnspython
  • colorama
  • emailprotectionslib
  • tldextract

Setup

Run pip install -r requirements.txt from the command line to install the required dependencies.

Coming Soon

  • Standalone Windows executable
  • Basic GUI option
  • Tests
Varshini

Varshini is a Cyber Security expert in Threat Analysis, Vulnerability Assessment, and Research. Passionate about staying ahead of emerging Threats and Technologies.

Recent Posts

Nmap cheat sheet for beginners

Nmap (Network Mapper) is a free tool that helps you find devices on a network,…

14 hours ago

Understanding the Model Context Protocol (MCP) and How It Works

Introduction to the Model Context Protocol (MCP) The Model Context Protocol (MCP) is an open…

1 week ago

The file Command – Quickly Identify File Contents in Linux

While file extensions in Linux are optional and often misleading, the file command helps decode what a…

1 week ago

How to Use the touch Command in Linux

The touch command is one of the quickest ways to create new empty files or update timestamps…

1 week ago

How to Search Files and Folders in Linux Using the find Command

Handling large numbers of files is routine for Linux users, and that’s where the find command shines.…

1 week ago

How to Move and Rename Files in Linux with the mv Command

Managing files and directories is foundational for Linux workflows, and the mv (“move”) command makes it easy…

1 week ago