Add DANE/TLSA support
Please add support for DANE in Postfix / TLSA records in DNS to ISPConfig. In these days everything against spam should be done. DANE/TLSA is a great effort to achieve this goal.
Here some links with more information:
https://www.paranoids.at/ispconfig-tlsa-patch-for-dane-using-postfix/ https://sys4.de/de/blog/2014/05/24/einen-tlsa-record-fuer-dane-mit-bind-9-publizieren/ https://www.kernel-error.de/postfix/postfix-dane-tlsa