Tutanota?<p><a href="https:&#x2F;&#x2F;tutanota.uservoice.com&#x2F;forums&#x2F;237921-general&#x2F;suggestions&#x2F;7858974-tutanota-is-using-unauthenticated-aes-cbc-encrypti" rel="nofollow">https:&#x2F;&#x2F;tutanota.uservoice.com&#x2F;forums&#x2F;237921-general&#x2F;suggest...</a><p><a href="http:&#x2F;&#x2F;seclists.org&#x2F;fulldisclosure&#x2F;2015&#x2F;Jun&#x2F;58" rel="nofollow">http:&#x2F;&#x2F;seclists.org&#x2F;fulldisclosure&#x2F;2015&#x2F;Jun&#x2F;58</a><p>Emphasis on the &quot;no&quot;.