+char *g_mime_message_get_reply_to_string (void *ctx, GMimeMessage *message);
+
+void g_mime_parser_set_scan_from (GMimeParser *parser, gboolean flag);
+
+gboolean g_mime_signature_status_good (GMimeSignatureStatus status);
+
+gboolean g_mime_signature_status_bad (GMimeSignatureStatus status);
+
+gboolean g_mime_signature_status_error (GMimeSignatureStatus status);
+
+gint64 g_mime_utils_header_decode_date_unix (const char *date);
+
+/**
+ * Return string for valid User ID (or NULL if no valid User ID exists)
+ */
+const char *g_mime_certificate_get_valid_userid (GMimeCertificate *cert);
+
+#ifdef __cplusplus
+}
+#endif
+