Google&#x27;s Online Security Blog posted earlier today regarding improving email security including &quot;opportunistic TLS&quot;[1] through the M3AAWG association, which does list the above companies as either sponsors or members[2]<p>1: <a href="https:&#x2F;&#x2F;googleonlinesecurity.blogspot.com&#x2F;2015&#x2F;11&#x2F;new-research-encouraging-trends-and.html" rel="nofollow">https:&#x2F;&#x2F;googleonlinesecurity.blogspot.com&#x2F;2015&#x2F;11&#x2F;new-resear...</a><p>2: <a href="https:&#x2F;&#x2F;www.m3aawg.org&#x2F;about&#x2F;roster" rel="nofollow">https:&#x2F;&#x2F;www.m3aawg.org&#x2F;about&#x2F;roster</a>