Am 2018-02-22 16:40, schrieb David Hofstee:
Hi,

A quick question... Does anyone have numbers on:
- the (volume) percentage of emails sent via TLS (capable mail
servers)
- the (volume) percentage of emails sent via TLS where the receiving
mta has a valid certificate
- the (volume) percentage of emails sent via TLS where the receiving
mta uses a valid certificate and supports DANE

Any answer is appreciated. Yours,

David

Hi David,

These are the numbers from the last seven days. Outbound traffic from the Munich Scientific Network (several universities). 2/3 of the traffic goes to Google, GMX, WEB.DE, Microsoft and Yahoo. GMX and WEB.DE support DANE (TLSA records).

Type        MTAs   Connections

Untrusted   3.775    2,05 %
No TLS      3.278    2,36 %
Anonymous   3.534    4,62 %
DANE          157   23,91 %
Trusted    14.428   67,04 %
---------------------------
           25.172   99,98 %

Michael

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