11. Routers and transports can now have multiple headers_add and headers_remove
option lines. The concatenated list is used.
+12. New ACL modifier "remove_header" can remove headers before message gets
+ handled by routers/transports.
+
+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.
+
Version 4.80
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