Today, amost 3% of DANE SMTP enabled domains either fail to validate or publish unsupported TLSA records[1]. This fraction would have been even higher without an effort to notify problem sites most of which have fixed the reported issues.
This error rate is too high. The DANE Validator <https://dane.sys4.de> is intended to identify configuration errors and to help administrators create working DANE SMTP configurations. Today's release marks the first public beta. We plan to release version 1 soon. Coinciding with the release of the Validator we have also created a "DANE users" mailing list at dane-us...@sys4.de. This list will provide a forum to discuss practical issues of DANE configuration and deployment. In order to subscribe to this list visit https://mail.sys4.de/cgi-bin/mailman/listinfo/dane-users. [1] Based on DANE adoption surveys by Viktor Dukhovni. -- [*] sys4 AG https://sys4.de, +49 (89) 30 90 46 64 Franziskanerstraße 15, 81669 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein