* Return string for valid User ID (or NULL if no valid User ID exists)
*/
const char *g_mime_certificate_get_valid_userid (GMimeCertificate *cert);
+/**
+ * Return string for valid e-mail address (or NULL if no valid e-mail address exists)
+ */
+const char *g_mime_certificate_get_valid_email (GMimeCertificate *cert);
#ifdef __cplusplus
}