Package: exim4-base Version: 4.84.2-2+deb8u1 Severity: important libnss-myhostname does have an interesting way of interpreting what gethostbyname is supposed to return. Upstream thinks this behavior is just fine, see #756224.
Unfortunately, this breaks exim's creation of primary_hostname, resulting in unqualified addresses getting qualified the wrong way and ultimately not being delivered. This can lead to loss of mail. Since the Debian maintainer of libnss-myhostname thinks that packages that rely on an FQDN actually being an FQDN should conflict with libnss-myhostname, we should seriously think about adding this conflict. This will have unfortunate results for the installation base of libnss-myhostname, sadly. Greetings Marc
