+check_mime:
+ warn condition = ${if match{$mime_content_type}{text}}
+ mime_regex = \N(?s)([\w.+=-]+@\w[\w-]*\.[\w.-]+\w)\
+ (.+?([\w.+=-]+@\w[\w-]*\.[\w.-]+\w))?\
+ (.+?([\w.+=-]+@\w[\w-]*\.[\w.-]+\w))?\
+ (.+?([\w.+=-]+@\w[\w-]*\.[\w.-]+\w))?\
+ (.+?([\w.+=-]+@\w[\w-]*\.[\w.-]+\w))?\N
+ accept
+