SMTP Tester 1.1.0

SMTP Tester 1.1.0

Stronger

• Bumped MailKit 4.13 → 4.17 (fixes a known moderate-severity advisory) and MaterialDesignThemes/Colors to 5.3.2
• Profile passwords are now encrypted at rest with Windows DPAPI instead of plaintext .ini
• From/To addresses are validated before connecting, with clear errors
• Missing/broken attachments now log a warning instead of silently vanishing
• Buttons are disabled while a run is in progress; Test All TLS now stops early on Cancel
• Window size/position and last-used connection settings are remembered between launches

Nicer

• New app icon, status chip (Idle/Connecting/Connected/Failed), busy progress bar
• Color-coded protocol log console (client/server/OK/warn/error)
• Password show/hide toggle, icon buttons with tooltips, grouped toolbar
• Ctrl+Enter / Ctrl+Shift+Enter shortcuts

Installer

• SMTPTesterSetup-1.1.0.exe — self-contained, no .NET runtime install required, per-user install (no admin prompt)