cannot resolv a.mx.bsws.de

[A. Schulze]

Hello,

messages to bsws.de and yos.net (same mx) fail because unbound could  
not resolve the names.
http://dnsviz.net/d/yos.net/dnssec/ show some strange warnings.

I found two ways general to solve the problem:
  - disable dnssec validation at all
  - disable qname-minimisation
last resort: forward the domain to an other resolver

we run unblund-1.5.9 including that patch:
http://unbound.net/pipermail/unbound-users/2016-June/004379.html

Andreas