GUI_SMTP

GUI SMTP Mail Client

A simple email client with a graphical user interface built in Python using PySide6. The application connects to an SMTP server using STARTTLS, allowing the user to compose emails, attach files, and send messages.

Files

• GUI_SMTP/mail_GUI_client.py – application logic (GUI + SMTP)
• GUI_SMTP/mail_gui_client.ui – Qt Designer UI file

Features

• Login to an SMTP server (server + port)
• TLS-encrypted authentication (starttls)
• Compose emails with recipient, subject, and message body
• Attach one or more files
• Basic error handling and user confirmation before sending

Running the Application

Requirements

• Python 3.9+
• PySide6

Install dependencies:

pip install PySide6

Run the application (from GUI_SMTP/):

python mail_GUI_client.py

The program expects mail_gui_client.ui to be located in the same directory as the Python file.

Notes

• SMTP login requires valid server details and credentials.
• Many email providers require app-specific passwords for SMTP access.
• This project is intended as a simple demonstration of GUI-based networking programming.