the head of the CNAME chain leading there (if there is one). This seems
to align better with RFC 6125.
+JH/07 Bug 2597: Fix a resource leak. Using a lookup in obtaining a value for
+ smtp_accept_max_per_host allocated resources which were not released
+ when the limit was exceeded. This eventually crashed the daemon. Fix
+ by adding a relase action in that path.
+
Exim version 4.94
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