====== Zustellbarkeit von E-Mails ======
  * [[https://begriffs.com/posts/2018-09-18-dmarc-mailing-list.html|Actually, DMARC works fine with mailing lists]]
  * [[https://www.eco.de/themen/e-mail/downloads/email-authentication/|Email Authentication für Empfänger]]
  * [[https://talosintelligence.com/reputation_center/|Talos Reputation Center]]