Passivating Beans do not allow Injection of non-serializable Instance injections

Given the following Code

@ConversationScoped
@Named
public class EmailTester implements Serializable {

    private static final long serialVersionUID = 1L;

    @Inject
    private Instance<MailMessage> mailMessage;

    @Inject
    private ActiveUser activeUser;

    @Inject
    private Messages messages;
    
    @Inject 
    private Instance<Session> session;

    public void send()
    {
        MailMessage m = mailMessage.get();
        m.from(activeUser.getUser());
        m.to(activeUser.getUser());
        m.subject("test");
        m.bodyText("Blah blah blah");
        m.send(session.get());
        messages.info("Message Sent");
    }

}

Weld throws

org.jboss.weld.exceptions.IllegalProductException: WELD-000054 Producers cannot produce non-serializable instances for injection into non-transient fields of passivating beans\\n\\nProducer\: Producer Method [Session] with qualifiers [@Any @Default] declared as [[method] @Produces @ExtensionManaged public org.jboss.seam.mail.core.MailSessionProducer.getMailSession(MailConfig)]
nInjection Point\: org.jboss.weld.bean.builtin.InstanceImpl$InstanceInjectionPoint@2146ca: javax.faces.FacesException: #

: org.jboss.weld.exceptions.IllegalProductException: WELD-000054 Producers cannot produce non-serializable instances for injection into non-transient fields of passivating beans\\n\\nProducer\: Producer Method [Session] with qualifiers [@Any @Default] declared as [[method] @Produces @ExtensionManaged public org.jboss.seam.mail.core.MailSessionProducer.getMailSession(MailConfig)]
nInjection Point\: org.jboss.weld.bean.builtin.InstanceImpl$InstanceInjectionPoint@2146ca

Since a new instance is returned each time a get() is called it should not matter that the javax.mail.Session is not non-serializable