Hackus Mail Checker Install May 2026

Edit config.ini:

timeout = 2   # Reduce from 5 to 2 seconds for faster scanning

Solution: Always use python3 explicitly. hackus mail checker install

alias python=python3

Make the script executable:

chmod +x mailchecker.py

Modern email providers (Google Workspace, Microsoft 365, ProtonMail) often block SMTP VRFY and EXPN commands. Hackus Mail Checker may return UNKNOWN for these domains. To improve success: Edit config

Even with perfect commands, you will encounter issues. Here is how to solve the top 5 installation and runtime errors. Solution: Always use python3 explicitly