MailCheck vs TCP Port Scanner

MailCheck is the ultimate SMTP diagnostic tool designed for system administrators, developers, and IT professionals. Stop guessing why your emails aren't sending. MailCheck gives you a direct look into the server conversation, helping you debug connectivity issues, verify SSL/TLS configurations, and test authentication credentials in seconds. KEY FEATURES: • Real-time SMTP Testing: Connect to any SMTP server (Gmail, Outlook, Office365, or custom servers) and verify connectivity instantly. • Raw Server Logs: View the full verbose transcript of the client-server handshake. See exactly where the error occurs (e.g., 535 Authentication Failed, Timeout, or Certificate errors). • Smart Port Configuration: Automatically toggles between SSL/TLS (465), STARTTLS (587), and Plain Text (25) based on your port selection. • Security First: Verify if your server supports modern encryption standards. • Privacy Focused: Passwords are NOT stored. All credentials are held in volatile memory (RAM) only during the session and are wiped immediately upon app termination. PERFECT FOR: - Testing new mail server setups. - Debugging firewall or port blocking issues. - Verifying "App Passwords" for third-party services. - IT Admins troubleshooting client email configurations. MailCheck is ad-free, lightweight, and built for speed. [Note: This app is a diagnostic client and does not provide an email inbox service.]

This application provides a lightweight and efficient network utility designed for technical users who need to perform TCP port scanning and basic network diagnostics directly from their device. No root access is required. Simply specify an IP address and a port range to initiate a scan. Key Features - TCP Port Scanner Detects open TCP ports on reachable hosts within a specified range. Useful for network diagnostics, service verification, and security assessments. - Selectable Text Output Scan results are aggregated into a single selectable text block, enabling easy copying, logging, and external analysis. - Low Overhead, High Responsiveness Optimized for quick scanning without unnecessary background processes or resource consumption. - Mobile-First Network Tool Execute network checks, service availability tests, and connectivity validation directly from your smartphone. Target Users This tool is intended for IT professionals, including: - Network engineers - System administrators - Security analysts - DevOps and SRE practitioners - Users managing home or small-office networks - Technicians verifying IoT device connectivity Legal and Ethical Notice This application must be used only on networks and devices for which you have explicit authorization. Unauthorized port scanning may violate local laws, organizational policies, or service agreements.