AI Summary: Mailcat is a tool designed to discover existing email addresses based on a user’s nickname, supporting over 170 domains across 37 email providers. It offers functionality through scripts that can be run via Tor or proxy to maintain anonymity, and it employs various methods such as SMTP and API for address retrieval. Notable features include extensive provider support and options for managing connection limits to enhance performance.

README

mailcat

The only cat who can find existing email addresses by nickname.

Usage

First install requirements:

pip3 install -r requirements.txt

Then just run the script:

./mailcat.py username

It’s recommended to run script through Tor or proxy. You can use internal Tor routing (--tor) or proxychains. Examples:

./mailcat.py --tor username
proxychains4 -q python3 mailcat.py username

./mailcat.py username --proxy http://1.2.3.4:8080

Supported providers

Total 37 providers, > 170 domains and > 100 aliases.

Troubleshooting

Use -m or --max-connections if you get connection errors (Mailcat do 10 parallel connections max by default).

SOWEL classification

This tool uses the following OSINT techniques:

• SOTL-2.2. Search For Accounts On Other Platforms
• SOTL-6.1. Check Logins Reuse To Find Another Account
• SOTL-6.2. Check Nicknames Reuse To Find Another Account

Mentions and articles

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hwosint - Twitter post