&gt; However the stakeholders simply don&#x27;t care enough to do anything about it,<p>Perhaps that&#x27;s a sign that &quot;it&quot; (smtp) now works well enough with the decades of engineering investment put into spam detection, access, standardization and inter-operability that have been put into it to not justify the massive investment that an &quot;SMTP update fit for 2015&quot; would involve.