this always failed, probably leading to the usual downgrade to in-clear
connections.
+JH/20 Fix TLSA lookups. Previously dns_again_means_nonexist would affect
+ SERVFAIL results, which breaks the downgrade resistance of DANE. Change
+ to not checking that list for these looks.
+
+JH/21 Bug 2434: Add connection-elapsed "D=" element to more connection
+ closure log lines.
+
Exim version 4.96
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