+As a special exception, the Claws Mail team gives permission to link
+the code of its release of Claws Mail with the four Spamassassin files
+src/plugins/spamassassin/libspamc.c, src/plugins/spamassassin/libspamc.h,
+src/plugins/spamassassin/utils.c and src/plugins/spamassassin/utils.h
+included in the releases, which are licenced under the Apache License version
+2.0. The Claws Mail team allow the compilation and distribution of
+Claws Mail with these files without invoking GPL clause 2(b).
+