> On May 20, 2018, at 7:24 PM, John Levine <[hidden email]> wrote:
> Has anyone actually seen it happen in the
> wild in the past decade?
I have a dataset with ~1.4 million MX hosts. Running through those
at a gentle pace (one at a time) after the first ~200 MX hosts I have
10 that don't announce 8BITMIME. So it certainly happens. Whether
there's anyone behind those MTAs looking at DKIM is a rather different
posttls-finger: Connected to mail.webbrowserbellen.be[22.214.171.124]:25
posttls-finger: < 220 HELO welcome to smtp.voipcentrale.nl
posttls-finger: > EHLO amnesiac
posttls-finger: < 250-hollanddns.com [192.0.2.1], this server offers 2 extensions
posttls-finger: < 250-SIZE 51200000
posttls-finger: < 250 HELP
posttls-finger: > QUIT
posttls-finger: < 221 Service closing transmission channel
> On May 20, 2018, at 7:59 PM, Viktor Dukhovni <[hidden email]> wrote:
> I have a dataset with ~1.4 million MX hosts. Running through those
> at a gentle pace (one at a time) after the first ~200 MX hosts I have
> 10 that don't announce 8BITMIME.
I stopped the scan after 2308 MX hosts of which 72 did not offer 8BITMIME.
The purported Exim versions were:
The next most common non-8bit MTAs were 12 instances of