emailchecker
A simple command-line tool to classify email domains as “Free Domain” or “Business Domain”.
📥 Download
⚡ How to Use
1️⃣ Prepare Your Input
- Create a CSV file named
emails.csvwith a single column labeled “Emails”. - Place emails.csv in the same directory as emailchecker.exe.
2️⃣ Run the Application
- Double-click emailchecker.exe to start processing.
3️⃣ View the Output
- A folder named “Output” will be created in the same directory.
- Inside Output/, find
classified_emails.csv, which contains the email list with a new “Domain Type” column.
📂 Folder Structure
Application Directory/
│── emailchecker.exe
│── emails.csv
│── Output/
│── repo/📋 Built-in Data
- The tool includes a list of free email domains in
repo/freeDomains.csv. - Modify this file to customize the free domain list.
✏️ Example Files
Example emails.csv:
Example classified_emails.csv Output:
📊 Example Classified Emails Table
| Emails | Domain Type |
|---|---|
| liam.harris@oracle.com | Business Domain |
| sophie.turner@cisco.com | Business Domain |
| henry.jenkins@hpe.com | Business Domain |
| natalie.brooks@sap.com | Business Domain |
| samuel.johnson@accenture.com | Business Domain |
| grace.mitchell@zoom.us | Business Domain |
| daniel.owens@tesla.com | Business Domain |
| jackson.lee@fastmail.com | Free Domain |
| isabella.clark@me.com | Free Domain |
| noah.morris@gmx.com | Free Domain |
| mia.harris@yandex.com | Free Domain |
| logan.walker@rocketmail.com | Free Domain |
| ryan.foster@gmail.com | Free Domain |
| chris.evans@yahoo.com | Free Domain |
| justin.roberts@gmail.com | Free Domain |
| rachel.morris@yahoo.com | Free Domain |
| brian.hamilton@protonmail.com | Free Domain |
⚠️ Important Notes
✅ emails.csv must be in the same directory as the executable.
✅ The output file will always be placed in the “Output” folder.
📧 Contact
For questions or issues, contact: jsickon@sickontech.com