I created a seam component to send all errors raised in the application by email,

just create a seam component as described below:

package br.com.sanepar.sns.mbean;

import java.io.Serializable;

import org.jboss.seam.ScopeType;

import org.jboss.seam.annotations.In;

import org.jboss.seam.annotations.Name;

import org.jboss.seam.annotations.Observer;

import org.jboss.seam.annotations.Scope;

import org.jboss.seam.contexts.Contexts;

import org.jboss.seam.exception.Exceptions;

import org.jboss.seam.faces.FacesMessages;

import org.jboss.seam.faces.Renderer;

import br.com.sanepar.sns.util.ServerUtils;

@SuppressWarnings("serial")

@Name("error")

@Scope(ScopeType.APPLICATION)

public class ErrorAction extends Exceptions implements Serializable {

    @In

    private Renderer renderer;

    @In(value = "org.jboss.seam.handledException", required = false)

    public Exception exception;

    @In

    FacesMessages facesMessages;

    @Observer(value = "org.jboss.seam.exceptionHandled")

    public void sendMail() {

        sendErrorMail(exception, "Exception no servidor "+ ServerUtils.getServerAddress());

        facesMessages.add("Ocorreram erros ao executar a operação.");

    }

    public void sendErrorMail(Throwable throwable, String message) {

        StringBuffer err = new StringBuffer();

        if (throwable != null) {

            err.append(throwable.getLocalizedMessage()).append("\n");

            err.append(throwable.getMessage()).append("\n");

            for (StackTraceElement elem : throwable.getStackTrace()) {

                err.append(elem.getFileName()).append(":")

                        .append(elem.getLineNumber()).append(":")

                        .append(elem.getClassName()).append(":")

                        .append(elem.getMethodName()).append("\n");

            }

        }

        Contexts.getEventContext().set("subject", message);

        Contexts.getEventContext().set("body", err.toString());

        Contexts.getEventContext().set("to", "leandrog@sanepar.com.br");

        Contexts.getEventContext().set("to", "klerisonk@sanepar.com.br");       

        renderer.render("/acaoMail.xhtml");

    }

}

create a page for sending email

<?xml version="1.0" encoding="ISO-8859-1" ?>

<m:message xmlns="http://www.w3.org/1999/xhtml"

    xmlns:m="http://jboss.com/products/seam/mail"

    xmlns:h="http://java.sun.com/jsf/html">

    <m:from name="SNS - Sistema Normativo da Sanepar" address="sns@sns.com" />

    <m:to name="Leandro">leandrog@sanepar.com.br</m:to>

    <m:subject>

    #{subject}   

    </m:subject>

    <p>

        <m:body>

        #{body}

        </m:body>

    </p>

</m:message>

and add the e-mail configuration in components.xml

<mail:mail-session host="10.100.1.70" auto-create="true" />

the ServerUtils

package br.com.sanepar.sns.util;

/**

* @author Leandro de Godoy

*18/06/2012

*/

import javax.faces.context.FacesContext;

import javax.servlet.http.HttpServletRequest;

public class ServerUtils {

    public static final String SERVER_SEPARATOR=":";

    public static final String FILE_SEPARATOR="/";

    //mudar para o endereco do servidor alvo

    public static final String HOST_STATIC_PATH ="http://localhost:8080/";

    public static String getServerAddress() {

        HttpServletRequest req = (HttpServletRequest) FacesContext

                .getCurrentInstance().getExternalContext().getRequest();

        String address = req.getScheme() +SERVER_SEPARATOR+FILE_SEPARATOR+FILE_SEPARATOR+ req.getServerName()

                + SERVER_SEPARATOR+req.getServerPort()+FILE_SEPARATOR;

        return address;

    }

}

Oh my god, seam is fantastic