created a python script with a GUI which sends an automated mail to the mentioned mail ID.

Author: writetosagnik

birthday-gmail-script/README.md

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+Generate an App Password:
+
+    1. Go to Google Account Security Settings.
+    
+    2. Under "Signing in to Google," find App passwords and create one for this script (you’ll need to have 2-step verification enabled on your account).
+
+    3. Use this app password in the script instead of your Gmail account password.

birthday-gmail-script/birthday-gmail.py

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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
+
+# Function to send email
+def send_birthday_wish(sender_email, app_password, receiver_email, birthday_message):
+    try:
+        # Create the email
+        msg = MIMEMultipart()
+        msg['From'] = sender_email
+        msg['To'] = receiver_email
+        msg['Subject'] = 'Happy Birthday! 🎉'
+        
+        # Add the birthday message to the email
+        msg.attach(MIMEText(birthday_message, 'plain'))
+        
+        # Connect to Gmail's SMTP server
+        server = smtplib.SMTP('smtp.gmail.com', 587)
+        server.starttls()  # Enable TLS encryption
+        server.login(sender_email, app_password)
+        
+        # Send the email
+        text = msg.as_string()
+        server.sendmail(sender_email, receiver_email, text)
+        
+        # Disconnect from the server
+        server.quit()
+
+        messagebox.showinfo("Success", "Birthday wish sent successfully!")
+    
+    except Exception as e:
+        messagebox.showerror("Error", f"Failed to send email. Error: {e}")
+
+# Function to get input from the user and send the email
+def send_email():
+    sender_email = entry_sender_email.get()
+    app_password = entry_app_password.get()
+    receiver_email = entry_receiver_email.get()
+    birthday_message = text_birthday_message.get("1.0", tk.END)  # Get text from Text widget
+
+    if not sender_email or not app_password or not receiver_email or not birthday_message.strip():
+        messagebox.showwarning("Input Error", "All fields are required!")
+        return
+
+    send_birthday_wish(sender_email, app_password, receiver_email, birthday_message)
+
+# GUI Setup
+app = tk.Tk()
+app.title("Birthday Wisher with Gmail")
+app.geometry("400x400")
+
+# Gmail sender email label and entry
+label_sender_email = tk.Label(app, text="Your Gmail:")
+label_sender_email.pack(pady=5)
+entry_sender_email = tk.Entry(app, width=40)
+entry_sender_email.pack(pady=5)
+
+# App password label and entry
+label_app_password = tk.Label(app, text="App Password:")
+label_app_password.pack(pady=5)
+entry_app_password = tk.Entry(app, show='*', width=40)
+entry_app_password.pack(pady=5)
+
+# Recipient email label and entry
+label_receiver_email = tk.Label(app, text="Recipient's Email:")
+label_receiver_email.pack(pady=5)
+entry_receiver_email = tk.Entry(app, width=40)
+entry_receiver_email.pack(pady=5)
+
+# Birthday message label and text entry
+label_birthday_message = tk.Label(app, text="Birthday Wishes:")
+label_birthday_message.pack(pady=5)
+text_birthday_message = tk.Text(app, height=5, width=40)
+text_birthday_message.pack(pady=5)
+
+# Send button
+send_button = tk.Button(app, text="Send Birthday Wish", command=send_email)
+send_button.pack(pady=10)
+
+# Run the application
+app.mainloop()