🔐 Python Email Verifier GUI App | Validate Emails with SMTP | FuzzuTech Tool

 Demo :

Click Video 👇👇👇

Features :

Build your own hacker-style Email Validator using Python. This app verifies if an email exists using SMTP — packed with GUI, threading, and clean UI via customtkinter. Perfect for developers & security tools!

Code :

# email_validator_gui.py

import customtkinter as ctk

from tkinter import messagebox

import smtplib

import socket

import threading

import requests

from PIL import Image, ImageTk

import io

# Configure CTk

ctk.set_appearance_mode("System")

ctk.set_default_color_theme("blue")

app = ctk.CTk()

app.title("Fuzzu Email Validator & Verifier")

app.geometry("500x600")

# Load Icon from OpenAI DALL·E (you can replace this with local file or API)

def get_dalle_image(prompt):

    try:

        response = requests.get("https://placehold.co/100x100/png", stream=True)

        img_data = response.content

        image = Image.open(io.BytesIO(img_data))

        return ctk.CTkImage(light_image=image, size=(100, 100))  # ✅ fixed here

    except:

        return None

icon_image = get_dalle_image("email icon")

# Components

if icon_image:

    icon_label = ctk.CTkLabel(app, image=icon_image, text="")

    icon_label.pack(pady=10)

ctk.CTkLabel(app, text="Enter Email to Validate", font=("Arial", 18)).pack(pady=10)

email_entry = ctk.CTkEntry(app, width=350, font=("Arial", 16))

email_entry.pack(pady=5)

result_label = ctk.CTkLabel(app, text="", text_color="green", font=("Arial", 14))

result_label.pack(pady=20)

# Email Verifier Function

def verify_email(email):

    try:

        domain = email.split('@')[1]

        mx_record = f"mail.{domain}"

        server = smtplib.SMTP()

        server.set_debuglevel(0)

        server.connect(mx_record)

        server.helo(server.local_hostname)

        server.mail('verify@fuzzutech.com')

        code, message = server.rcpt(email)

        server.quit()

        if code == 250:

            return True, "✅ Email is valid!"

        else:

            return False, "❌ Invalid Email Address"

    except Exception as e:

        return False, f"❌ Error: {str(e)}"

# Threading Handler

def handle_verification():

    email = email_entry.get().strip()

    if not email:

        messagebox.showerror("Input Error", "Please enter an email address.")

        return

    result_label.configure(text="Checking...", text_color="orange")

    def process():

        valid, message = verify_email(email)

        result_label.configure(text=message, text_color="green" if valid else "red")

    threading.Thread(target=process).start()

verify_btn = ctk.CTkButton(app, text="Verify Email", command=handle_verification, font=("Arial", 16), width=200)

verify_btn.pack(pady=10)

# Run App

app.mainloop()