Estimate Exchange (Online) Transport rule size

Get-TransportRuleEstimatedSize.ps1

#Help identify rule size for limit
# https://docs.microsoft.com/en-us/office365/servicedescriptions/exchange-online-service-description/exchange-online-limits#journal-transport-and-inbox-rule-limits
$TransportRules = Get-TransportRule
$Result = @()
Foreach($TransportRule in $TransportRules){
    if($Matches){$Matches.Clear()}
    $RuleLength = 0
    $Regex = $TransportRule.Description -match "If the message:([\w\W]*)Take the following actions:"
    if($Regex){
        $RuleLength+= $Matches[1].trim().Length
    }
    if($Matches){$Matches.Clear()}
    $Regex = $TransportRule.Description -match "Except if the message:([\w\W]*)"
    if($Regex){
        $RuleLength+= $Matches[1].trim().Length
    }
    $Rule = [PSCustomObject]@{
        Name = $TransportRule.Name
        Priority = $TransportRule.Priority
        State = $TransportRule.State
        RuleLength = $RuleLength
    }
    $Result += $Rule
}
$Result |sort RuleLength -Descending