[Autocrypt] Posteo with outgoing autocrypt-headers

[Pablo]

FYI:

"Neu: Vereinfachte E-Mail-Verschlüsselung mit Autocrypt- und OpenPGP-Header" <https://posteo.de/blog/neu-vereinfachte-e-mail-verschl%C3%BCsselung-mit-autocrypt-und-openpgp-header>

(Only in german language so far. Micro-summary: Posteo now DKIM-signs present autocrypt-headers in outgoing emails, and inserts+DKIM-signs the header if customers uploaded and agreed to publish (WKD, DANE) their key.)


Cheers, Pablo