if (tls_certificate_verified) fprintf(f, "-tls_certificate_verified\n");
if (tls_cipher != NULL) fprintf(f, "-tls_cipher %s\n", tls_cipher);
if (tls_peerdn != NULL) fprintf(f, "-tls_peerdn %s\n", string_printing(tls_peerdn));
+#ifndef USE_GNUTLS
+if (tls_sni != NULL) fprintf(f, "-tls_sni %s\n", string_printing(tls_sni));
+#endif
#endif
/* To complete the envelope, write out the tree of non-recipients, followed by