JH/32 Bug 3096: MAIL before HELO/EHLO, where required by hosts_require_helo, is
now classed as a protocol error and subject to smtp_max_synprot_errors.
+JH/33 Bug 2994: A subdir dsearch lookup should permit a directory name that starts
+ ".." and has following characters.
+
Exim version 4.97
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