SMTP-Analyzer

A command-line tool to diagnose and troubleshoot scan-to-email issues by analyzing SMTP configurations and testing email delivery. Available in both Bash and PowerShell versions.

Features

• Interactive menu-driven interface
• Email address validation
• DNS record analysis (MX, A, TXT records)
• SMTP connection testing
• Test email sending capability
• Comprehensive troubleshooting guide
• Color-coded results for better visibility
• Configuration management
• Logging system
• Progress indicators
• Help system
• No external dependencies required

Prerequisites

Bash Version

• Bash shell (version 4.0 or higher)
• Basic Unix tools (nslookup, telnet, timeout)
• These tools are typically pre-installed on most Unix-like systems

PowerShell Version

• PowerShell 5.1 or higher
• Windows 7/8/10/11 or Windows Server 2008 R2 or later
• .NET Framework 4.5 or later

Installation

Bash Version

1. Clone this repository:

git clone https://github.com/se7enb2st/SMTP-Analyzer.git
cd SMTP-Analyzer

2. Make the script executable:

chmod +x smtp_analyzer.sh

PowerShell Version

1. Clone this repository:

git clone https://github.com/se7enb2st/SMTP-Analyzer.git
cd SMTP-Analyzer

2. Set execution policy (if needed):

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser

Usage

Bash Version

Run the script:

./smtp_analyzer.sh

PowerShell Version

Run the script:

.\smtp_analyzer.ps1

The interactive menu provides the following options:

1. Quick Test (All Checks)

   • Performs all available checks in sequence
   • Validates email addresses
   • Checks DNS records
   • Tests SMTP connection
   • Attempts to send a test email
   • Shows progress indicators

2. Check Email Format

   • Validates email address syntax
   • Provides immediate feedback
   • Color-coded results

3. Check DNS Records

   • Checks MX records
   • Checks A records
   • Checks TXT records
   • Provides detailed DNS information
   • Shows progress indicators

4. Test SMTP Connection

   • Tests server reachability
   • Verifies port accessibility
   • Checks connection establishment
   • Shows progress indicators

5. Test Email Sending

   • Tests SMTP authentication
   • Attempts to send a test email
   • Provides detailed feedback
   • Shows progress indicators

6. Troubleshooting Guide

   • Shows comprehensive troubleshooting steps
   • Provides solutions for common issues
   • Offers best practices and tips

7. Settings

   • Configure tool options
   • Enable/disable logging
   • Change default port
   • Adjust timeout settings
   • Enable/disable SSL
   • Customize test email content

8. View Log

   • Display recent log entries
   • View operation history
   • Track errors and successes

9. Help

   • Show detailed help information
   • Explain all menu options
   • List common issues
   • Provide usage tips

10. Exit

    • Close the program

Interactive Features

• Color-coded output for better visibility
• Step-by-step guidance
• Immediate feedback on each operation
• Progress indicators for long-running operations
• Pause between operations for better readability
• Detailed error messages
• Comprehensive troubleshooting guide
• Configuration management
• Logging system
• Help system

Configuration

The tool can be configured through the Settings menu or by editing the configuration file:

Bash Version

• Configuration file: smtp_analyzer.conf
• Log file: smtp_analyzer.log

PowerShell Version

• Configuration file: smtp_analyzer.json
• Log file: smtp_analyzer.log

Configurable options include:

• Default SMTP port
• Connection timeout
• Logging enabled/disabled
• SSL enabled/disabled
• Test email subject and body

Troubleshooting

The built-in troubleshooting guide provides solutions for:

1. Email format issues
2. DNS configuration problems
3. SMTP connection failures
4. Email sending issues
5. General tips and best practices

Contributing

Feel free to submit issues and enhancement requests!