Hello Michael,
during some tests, I noticed that the DANE record for www.ipfire.org is still missing. In the first place, I thought this was because of some DNS reply caching, but it isn't.
Just for the record, should be an easy change.
Apart from that all DANE records seem to be present.
I will deal with the Postfix configuration on IPFire's MX next week (need to work at the weekend).
Best regards, Peter Müller