On Sun, Oct 19, 2014 at 06:48:40PM +0300, Yaron Sheffer wrote:
> >in newer versions of the protocol, but if the client and server can't
> >negotiate that version, it's all for naught.
> >
> >https://www.techdirt.com/blog/netneutrality/articles/20141012/06344928801/revealed-isps-already-violating-net-neutrality-to-block-encryption-make-everyone-less-safe-online.shtml
>
>
> Agree on the above and thanks for the link. It is scary indeed that ISPs
> actively MITM SMTP traffic to prevent opportunistic encryption from taking
> place.
This looks exactly like the off-the-shelf Cisco ESA (formerly PIX)
firewall SMTP inspection feature. If the ISP is using that product,
the filtering in question may even be inadvertent (out of the box
default policy). So it may be a bit early to conclude a grand
conspiracy here.
--
Viktor.
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