ID: 14450 Title: Checkmk Docker container: Commend myhostname in /etc/postfix/main.cf Component: Site Management Level: 1 Class: Bug fix Version: 2.2.0i1 This werk commends myhostname in /etc/postfix/main.cf. Some mailservers reject mails with BOGUS HELO if you let myhostname uncommended.