GUI for Email Sender Script

Creating a GUI for an Email Sender script enhances usability, especially for non-technical users. Below is a full implementation of a Python-based GUI email sender using Tkinter, along with smtplib for sending emails.

python
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import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
import tkinter as tk
from tkinter import messagebox

def send_email():
    sender_email = sender_entry.get()
    password = password_entry.get()
    receiver_email = receiver_entry.get()
    subject = subject_entry.get()
    body = body_text.get("1.0", tk.END)

    if not (sender_email and password and receiver_email and subject and body.strip()):
        messagebox.showerror("Error", "All fields are required.")
        return

    try:
        msg = MIMEMultipart()
        msg['From'] = sender_email
        msg['To'] = receiver_email
        msg['Subject'] = subject

        msg.attach(MIMEText(body, 'plain'))

        server = smtplib.SMTP('smtp.gmail.com', 587)
        server.starttls()
        server.login(sender_email, password)
        server.send_message(msg)
        server.quit()

        messagebox.showinfo("Success", "Email sent successfully!")
    except Exception as e:
        messagebox.showerror("Error", f"Failed to send email.n{e}")

# GUI Setup
root = tk.Tk()
root.title("Email Sender GUI")
root.geometry("500x500")
root.resizable(False, False)

# Sender Email
tk.Label(root, text="Your Email:").pack(anchor='w', padx=10, pady=5)
sender_entry = tk.Entry(root, width=60)
sender_entry.pack(padx=10)

# Password
tk.Label(root, text="Password:").pack(anchor='w', padx=10, pady=5)
password_entry = tk.Entry(root, show='*', width=60)
password_entry.pack(padx=10)

# Receiver Email
tk.Label(root, text="Recipient Email:").pack(anchor='w', padx=10, pady=5)
receiver_entry = tk.Entry(root, width=60)
receiver_entry.pack(padx=10)

# Subject
tk.Label(root, text="Subject:").pack(anchor='w', padx=10, pady=5)
subject_entry = tk.Entry(root, width=60)
subject_entry.pack(padx=10)

# Body
tk.Label(root, text="Message:").pack(anchor='w', padx=10, pady=5)
body_text = tk.Text(root, height=10, width=60)
body_text.pack(padx=10)

# Send Button
send_button = tk.Button(root, text="Send Email", command=send_email, bg="green", fg="white")
send_button.pack(pady=20)

root.mainloop()

Features:

• Input Fields: Sender email, password, receiver email, subject, and body.

• Validation: Ensures no field is left empty.

• Error Handling: Catches and displays exceptions (e.g., login failure, network errors).

• Security Note: Use App Passwords for Gmail instead of the main password.

Optional Enhancements:

• Attachments support with filedialog and MIMEApplication

• Dropdowns for predefined email templates

• Logging system for sent emails

• Styling improvements with ttk or third-party GUI frameworks like PyQt or Kivy

This GUI script provides a user-friendly way to send emails programmatically, bridging the gap between code and usability.