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Flexible server monitoring

Simon 5 is coming soon!

Simon version 5 is currently in beta testing. It is a massive update, introducing a much-requested feature: syncing the Simon data between multiple Macs, plus a Simon Status service, a Link Checker filter, improved Find filter, iMessage and Speak Error notifiers, a new app icon, and much more.

Important: please note that Simon 5 requires a minimum of macOS 10.12 (Sierra), and will be a paid upgrade from Simon 4 after the beta. Purchasers since September 1, 2020 automatically get a version 5 license (that also works in previous versions).

Read the blog for details.

Why isn't the Automatic transport for the E-mail Notifier working?

Firstly, you need to have set up a valid mail configuration in Apple Mail (or possibly other mailers). You also need to make sure that the From address you specify uses the same server as one of your Mail configuration, as it finds the configuration based on the server domain.