SMTP Tester Pro vs CooliApp

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

CooliApp is the companion app for Coolify, the open-source self-hosting platform. Manage your entire cloud infrastructure directly from your iPhone. Projects & Services Browse your projects, environments, and services at a glance. View application details, check deployment history, and read live logs — all without opening a browser. Servers Keep an eye on all your connected servers. Quickly verify which servers are online and access their details in seconds. Deployments Track your deployments in real-time. See queued, in-progress, and completed deployments with automatic status polling so you always know what's happening. Home Screen Widgets Add health check widgets for your instances, applications, and services directly to your home screen. Know the status of your infrastructure at a glance without even opening the app. Multi-Instance Support Connect multiple Coolify instances and switch between them effortlessly. Built for Privacy Your API tokens are stored securely on your device. CooliApp connects directly to your Coolify instances — no third-party servers involved. Designed for iOS - Native SwiftUI interface with light and dark mode - Face ID / Touch ID lock for added security - Customizable tab bar - Follow Coolify releases from the app CooliApp requires a self-hosted Coolify instance (v4+) with API access enabled.