13. New dnsdb lookup pseudo-type "a+". A sequence of "a6" (if configured),
"aaaa" and "a" lookups is done and the full set of results returned.
+14. New expansion variable $headers_added with content from ACL add_header
+ modifier (but not yet added to messsage).
+
+15. New 8bitmime status logging option for received messages. Log field "M8S".
+
Version 4.80
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