JH/17 Bug 68: The spamd_address main option now supports an optional
timeout value per server.
+JH/18 Bug 1581: Router and transport options headers_add/remove can
+ now have the list separator specified.
+
+JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
+ option values.
+
Exim version 4.85