A parameter cannot be found that matches parameter name 'Mailbox'.

[JamesHeathcote]

A parameter cannot be found that matches parameter name 'Mailbox'.

[mcvic1rj]

Can you run the following and paste the output?
$PSVersionTable

[stsulliv]

Same problem here. $PSVersionTable output below.
Name Value

---

PSVersion 4.0
WSManStackVersion 3.0
SerializationVersion 1.1.0.1
CLRVersion 4.0.30319.42000
BuildVersion 6.3.9600.18968
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0}
PSRemotingProtocolVersion 2.2

[stsulliv]

Found my problem. Check your connection to Exchange (including the import session part).

Troubleshooting:
-[SUCCESS] I ran the 'Get-InboxRule' command locally on exchange using Exchange Management Shell
-[SUCCESS] I ran the 'Get-InboxRule' command remotely on a server with Exchange Admin Tools installed using Exchange Management Shell.
*note the Exchange PowerShell launches with an 'Auto' connect option (see windows shortcut properties)

So the issue was with the Exchange connection. After digging deeper in the script, I had an error importing the Exchange PSSession. Once resolved, the command executed successfully.

[PsychoData]

I will say some of the commands in these scripts have to be tweaked to run with On-prem exchange, though a lot stays the same
Combined with Issue #37 (Troubleshooting suggestions there) I'm guessing this is probably just an issue importing the session.