Hackus Mail Checker Install • Premium & Premium

| Flag | Long Form | Function | | :--- | :--- | :--- | | -e | --email | Single email address check | | -f | --file | Input file (one email per line) | | -o | --output | Save valid emails to file | | -t | --threads | Number of parallel checks (default: 10) | | -d | --disable-disposable | Skip disposable domain check | | -v | --verbose | Show detailed SMTP handshake |

Make the script executable:

chmod +x mailchecker.py

Open your terminal and run:

sudo apt update && sudo apt upgrade -y
sudo apt install python3 python3-pip git dnsutils -y

For CentOS/RHEL:

sudo yum install epel-release -y
sudo yum install python3 python3-pip git bind-utils -y

Once these are installed, verify Python version:

python3 --version

You need 3.8 or higher.

| Output | Meaning | |---------------|-------------------------------------------------------------------------| | EXISTS | The email address is valid and accepts mail. | | NOT EXISTS | The mailbox does not exist (SMTP 550 or 5.1.1 error). | | UNKNOWN | The server did not disclose existence (often due to security settings). | | TIMEOUT | The SMTP server did not respond (firewall or rate limiting). |

Basic syntax:

python3 mailchecker.py --email target@example.com

or

python3 hackus_mail.py -f emails.txt -o results.csv

Most versions require Python packages:

pip3 install -r requirements.txt

Common dependencies:

If requirements.txt isn’t present, manually install:

pip3 install requests dnspython validate_email

The official Hackus Mail Checker is hosted on GitHub. Navigate to your /opt directory (standard for third-party apps) and clone it:

cd /opt
sudo git clone https://github.com/hackus/mailchecker.git

If the above URL is deprecated (projects move often), check the official Hackus security forums for the latest mirror. For this guide, assume the generic structure. hackus mail checker install