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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.

SMTP Service tweak

Just a note on the default SMTP service.

I'm using EIMS as my mail server, and one of the common anti-spam practices is to automatically block any host that tries to connect using the same HELO name as the currently running server. Having this kind of setup meant that Simon connected fine on the first attempt, but then on all subsequent attempts it reported a failure as EIMS blocked the incoming connection, since the SMTP service defaults to using the name of the server being tested in the helo.

I've duplicated the SMTP service and changed the then send helo {TestURL} to be hardcoded to then send helo mydomain.tld and now it's running fine.

David Sinclair's picture

Re: SMTP Service tweak

That's one of Simon's strengths: if a service doesn't work quite right, you can tweak it (if a Port or Script based service, anyway -- and can often replace others with scripts).