" (", sender_host_authenticated, US") smtp.auth=", authenticated_id);
if (authenticated_sender)
g = string_append(g, 2, US" smtp.mailfrom=", authenticated_sender);
" (", sender_host_authenticated, US") smtp.auth=", authenticated_id);
if (authenticated_sender)
g = string_append(g, 2, US" smtp.mailfrom=", authenticated_sender);