機能リクエスト:送信済みメールをファイル(emlまたはmsg)としてエクスポート

I as an administrator have the need to export a sent (but not delivered) email to a file to forward it to external support so that they can analyse it. Exporting a sent email seems to be not possible yet, thus this feature request. Respective support question:

「いいね!」 2