Simon icon Simon
Flexible server monitoring

Introducing Simon 5!

Simon version 5 is now available. 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 is a paid upgrade from Simon 4. Purchasers since September 1, 2020 automatically get a version 5 license (that also works in previous versions).

Read the Simon What's New page for details.

Why isn't my E-mail Notifier working?

I seem to get more queries about the E-mail notifier than any other feature. Usually, it comes down to not filling in all of the fields, or setting the wrong authentication.

So the first thing I'd recommend is checking that both the To and From address fields are filled in with valid e-mail addresses.

If that doesn't help, check that the Outgoing Mail Server is correct in the E-mail Transport Options panel - if you use .Mac, make sure you enter just "" (without the quotes), and not the colon and username following.

If still not working, try each of the Authentication options in that panel, with the appropriate User Name and Password entered. Also try turning SSL off. It's not always easy to tell which will work.