$olFolderInbox=6
$oOutlook=New-Object -ComObject Outlook.Application
$oNamespace=$oOutlook.GetNamespace("MAPI")
$oFolder=$oNamespace.GetDefaultFolder($olFolderInbox)

$RedmineApiKey="<APIキー>"
$RedmineUrl="<redmineのURL>/issues.xml?format=xml&key=$RedmineApiKey"
$ProjectId=1 #プロジェクトID
$TrackerId=1 #トラッカーID

foreach($oItem in $oFolder.Items)
{
    if(($oItem.Unread) -and ($oItem.SenderEmailAddress -like "*nakazawa@exbrain.jp*")){
        $postBody  ="<?xml version=`"1.0`" encoding=`"UTF-8`"?>"
        $postBody +="<issue>"
        $postBody +="<project_id>$ProjectId</project_id>"
        $postBody +="<tracker_id>$TrackerId</tracker_id>"
        $postBody +="<subject>" + $oItem.Subject + "</subject>"
        $postBody +="<description>" + $oItem.Body + "</description>"
        $postBody +="<start_date>" + $oItem.ReceivedTime.ToString("yyyy-MM-dd") + "</start_date>"
        $postBody +="<due_date>" + $oItem.ReceivedTime.addMonths(1).ToString("yyyy-MM-dd") + "</due_date>"
        $postBody +="</issue>"

        Invoke-WebRequest -Uri $RedmineUrl -Method POST -ContentType "application/xml; charset=utf-8" -Body $postBody

        $oFolder1=$oFolder.Folders | ?{$_.name -match "フォルダ1"}
        $oFolder2=$oFolder1.Folders | ?{$_.name -match "フォルダ2"}
        $oItem.move($oFolder2)
    }
}