Exchange Powershell "NotMatch" doesn't seem to work

I'm trying to creat a listing of Exchange users that do NOT have a certain string in their list of email addresses. I am trying the one liner below and it does not work, I get back a listing of every user:

Get-MailboxServer | Get-Mailbox | where {$_.EmailAddresses -NotMatch "jrnl"} | Select EmailAddresses

However if I run this command instead, it filters out just the users who's email list DOES include the string:

Get-MailboxServer | Get-Mailbox | where {$_.EmailAddresses -Match "jrnl"} | Select EmailAddresses

So I know the variables are all getting passed in and read correctly, I just can't figure out why the "Not" form of "Match" isn't working. (I've also tried -NotLike and -NotContains with the same results)

Any assistance would be greatly appreciated.
BWK-AdminAsked:
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footechCommented:
From the PowerShell help:
   
When the input to an operator is a scalar value, comparison operators
    return a Boolean value. When the input is a collection of values, the
    comparison operators return any matching values. If there are no matches
    in a collection, comparison operators do not return anything.

    The exceptions are the containment operators (-Contains, -NotContains),
    the In operators (-In, -NotIn), and the type operators (-Is, -IsNot),
    which always return a Boolean value.

When you're testing the condition {$_.EmailAddresses -NotMatch "jrnl"}  (or using -Match), that isn't returning a boolean, but the addresses instead.  So you would get all the addresses (an array) that don't have "jrnl" in them.  An array evaluates to TRUE and so Where-Object passes along the object.

You can either look at each value in $_.EmailAddresses individually, so that you're looking at a string (a scalar value), or in this case you can kind of twist the logic a bit, looking for a match from the collection but then filtering out those that have a match.
Get-MailboxServer | Get-Mailbox | where { !($_.EmailAddresses -Match "jrnl") } | Select EmailAddresses

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BWK-AdminAuthor Commented:
That worked perfectly, thank you very much!
BWK-AdminAuthor Commented:
I was able to get the results I needed, by outputting the entire list of mailbox addresses to a text file, then using FIND from a command line to filter out mailboxes without the matching string using /V.

Now I run this code, and get the exact same results with less effort, so I know this works 100%.
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