On Sun, Apr 19, 2020 at 08:02:41PM +0200, Matus UHLAR - fantomas wrote: > On 19.04.20 13:11, Wietse Venema wrote: > > >Warning: libc-musl breaks DANE/TLSA security. > >Use a glibc-based Linux distribution instead. > >Remove this test to build unsupported Postfix. > >make: *** [Makefile:79: makefiles] Error 1 > > Isn't this contrary to what you have said before? > > https://marc.info/?l=postfix-users&m=158715103506366&w=2 > > However, if people want to shoot themselves in the foot, then > > Postfix won't stop them.
No, with that (trusting the AD-bit from remote nameservers) Postfix still works exactly as documented. The administrator gets exactly what he asked for. The idea with the compile-time warning is to avoid surprise behaviour in otherwise correct configurations, that differ unexpectedly only in the platform C library. The defensive check will I hope only be needed for a limited amount of time. If/when a later release of libc-musl does return a usable AD bit, the check can be removed. -- Viktor.