mitmproxy client by txthinking vs SMTP Tester Pro

Why You Need This: - Capture on TCP/IP layer, NOT system proxy. Avoid some applications not going through the proxy This is a helper app for mitmproxy, which is freely available at https://github.com/mitmproxy/mitmproxy. It is not developed by the mitmproxy project. - This app captures all IP packets (IP layer) - Next assemble into TCP stream (TCP layer) - Next assemble into socks5 stream (Application layer) - Next send to mitmproxy Required: https://github.com/mitmproxy/mitmproxy installed on your desktop - Intercept HTTP & HTTPS requests and responses and modify them on the fly - Save complete HTTP conversations for later replay and analysis - Replay the client-side of an HTTP conversations - Replay HTTP responses of a previously recorded server - Reverse proxy mode to forward traffic to a specified server - Transparent proxy mode on macOS and Linux - Make scripted changes to HTTP traffic using Python - SSL/TLS certificates for interception are generated on the fly - And much, much more…

Test any SMTP server from your iPhone or iPad. Enter the server, pick the encryption and login method, send a real test email, and see the complete SMTP conversation in a color-coded transaction log. SMTP Tester Pro is built for IT admins, developers and email administrators who need to know why mail isn't going out. Connection and security: - TLS modes: Require STARTTLS (port 587), Require TLS (SSL/TLS, port 465), Normal and Ignore TLS - Login methods: LOGIN, PLAIN, CRAM-MD5 and XOAUTH2, or no login for relays and test servers - Self-signed certificates and custom OpenSSL cipher suites - Adjustable timeout Real test emails: - To, CC and BCC with comma-separated addresses - HTML body with a built-in template and a plain-text fallback - File attachments from the Files app - Custom headers such as Reply-To or X-Priority Transaction log: - Every command and server reply, color-coded, with a color legend - Successful and failed sends are saved in the log, grouped by day - Search a log, show or hide timestamps, copy or share it - Clear error messages with the server's own reply and troubleshooting tips Templates: - Server settings for Microsoft 365, Gmail, Outlook.com, iCloud Mail, Yahoo Mail, AOL Mail, Zoho Mail, GMX Mail, Yandex Mail and Mail.com - Save your own servers as templates, stored encrypted on your device - Password-protected backup and restore of your templates Privacy and appearance: - Face ID lock and password visibility settings - Passwords and access tokens are never written to the log - Light, Dark and System appearance, adjustable log font size and colors - Works on iPhone and iPad