first commit

email-smtp-tester/.env.example

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+# SMTP Configuration
+SMTP_SERVER=smtp.example.com
+SMTP_PORT=587
+SMTP_USERNAME=your_username@example.com
+SMTP_PASSWORD=your_password
+SMTP_FROM=your_email@example.com
+SMTP_TO=recipient@example.com
+SMTP_USE_TLS=True

email-smtp-tester/.gitignore

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+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# Environment variables
+.env
+.env.*
+!.env.example
+
+# Logs
+logs/
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Database
+*.db
+*.sqlite3
+*.sqlite
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+# Local development
+local_settings.py
+
+# Testing
+.coverage
+htmlcov/
+.pytest_cache/
+
+# Virtual Environment
+.venv/
+venv/
+ENV/
+
+# Distribution / packaging
+dist/
+build/
+*.egg-info/
+*.egg

email-smtp-tester/requirements.txt

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+python-dotenv==1.0.0
+secure-smtplib==0.1.1

email-smtp-tester/send_email.py

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+import os
+import smtplib
+import logging
+from datetime import datetime
+from email.mime.text import MIMEText
+from email.mime.multipart import MIMEMultipart
+from dotenv import load_dotenv
+
+# Configure logging
+logging.basicConfig(
+    level=logging.INFO,
+    format='%(asctime)s - %(levelname)s - %(message)s',
+    handlers=[
+        logging.StreamHandler(),
+        logging.FileHandler('email_sender.log')
+    ]
+)
+logger = logging.getLogger(__name__)
+
+def send_email(subject, body):
+    # Start logging
+    logger.info("="*50)
+    logger.info(f"Starting email sending process at {datetime.now()}")
+    logger.info("-"*50)
+    
+    try:
+        # Load environment variables
+        load_dotenv()
+        logger.info("Environment variables loaded successfully")
+        
+        # Email configuration
+        smtp_server = os.getenv('SMTP_SERVER')
+        smtp_port = int(os.getenv('SMTP_PORT', '587'))
+        smtp_username = os.getenv('SMTP_USERNAME')
+        smtp_password = os.getenv('SMTP_PASSWORD')
+        from_email = os.getenv('SMTP_FROM')
+        to_email = os.getenv('SMTP_TO')
+        use_tls = os.getenv('SMTP_USE_TLS', 'True').lower() == 'true'
+        
+        # Log configuration
+        logger.info(f"SMTP Server: {smtp_server}:{smtp_port}")
+        logger.info(f"From: {from_email}")
+        logger.info(f"To: {to_email}")
+        logger.info(f"Use TLS: {use_tls}")
+        logger.info(f"Subject: {subject}")
+        logger.debug(f"Email body: {body}")
+
+        # Create message
+        logger.info("Creating email message...")
+        msg = MIMEMultipart()
+        msg['From'] = from_email
+        msg['To'] = to_email
+        msg['Subject'] = subject
+        msg.attach(MIMEText(body, 'plain'))
+        logger.debug("Email message created successfully")
+
+        # Create SMTP session
+        logger.info(f"Connecting to SMTP server: {smtp_server}:{smtp_port}")
+        with smtplib.SMTP(smtp_server, smtp_port, timeout=30) as server:
+            logger.info("SMTP connection established")
+            
+            if use_tls:
+                logger.info("Starting TLS encryption...")
+                server.starttls()
+                logger.info("TLS encryption started")
+            
+            # Login to SMTP server
+            logger.info("Authenticating with SMTP server...")
+            try:
+                server.login(smtp_username, smtp_password)
+                logger.info("Successfully authenticated with SMTP server")
+            except Exception as auth_error:
+                logger.error(f"SMTP authentication failed: {str(auth_error)}")
+                logger.error(f"Username used: {smtp_username}")
+                raise
+            
+            # Send email
+            logger.info("Sending email...")
+            server.send_message(msg)
+            logger.info("Email sent successfully!")
+            logger.info(f"Email details - From: {from_email}, To: {to_email}, Subject: {subject}")
+            return True
+            
+    except smtplib.SMTPException as smtp_error:
+        logger.error(f"SMTP Error occurred: {str(smtp_error)}")
+        logger.error(f"SMTP Error code: {getattr(smtp_error, 'smtp_code', 'N/A')}")
+        logger.error(f"SMTP Error message: {getattr(smtp_error, 'smtp_error', 'N/A')}")
+        return False
+    except Exception as e:
+        logger.error(f"Unexpected error occurred: {str(e)}", exc_info=True)
+        return False
+    finally:
+        logger.info("="*50 + "\n")
+
+if __name__ == "__main__":
+    try:
+        # Test email
+        subject = "SMTP Test Email"
+        body = "This is a test email sent using Python's smtplib with SMTP on port 587."
+        
+        logger.info("Starting email test...")
+        result = send_email(subject, body)
+        
+        if result:
+            logger.info("Email test completed successfully!")
+        else:
+            logger.error("Email test failed!")
+            
+    except Exception as e:
+        logger.critical(f"Critical error in main: {str(e)}", exc_info=True)

email-smtp-tester/start.sh

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+#!/bin/bash
+set -e
+source .env
+python3.13 -m venv .venv
+source .venv/bin/activate
+
+pip install -r requirements.txt
+
+exec python3.13 send_email.py