Collect System Information and send an email

I'm looking for a Python-based application that gathers crucial system data from a computer and automatically sends it to a specified email address.

Key Features:
- System Information Collection: The application should be able to collect and send details about the processor, memory, graphics card, and storage.
- Email Functionality: It should format the collected system details into a readable format and send the information via email (SMTP configuration required).
- User Interface (Optional): A simple GUI or command-line interface to trigger data collection and email sending would be a bonus.

Technology Preferences:
- Cross-platform compatibility (Windows, Linux, macOS) is a plus as this application is intended for clients.

Ideal Skills and Experience:
- Proficient in Python with a strong portfolio of similar projects.
- Experience with system-level programming.
- Knowledge of building cross-platform applications.
- Familiarity with creating SMTP configurations for email functionality.