Property file entries not loading

I would like read property file entry values in mailSender bean, some how i am not getting the ${smtp.host} value.
Please find below my entries and let me know the problem


<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.Pr opertyPlaceholderConfigurer" scope="singleton" lazy-init="false" >
<property name="location">
<value>classpath:smtp_config.properties</value>
</property>
</bean>

<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailS enderImpl" depends="propertyConfigurer">
<property name="host"><value>${smtp.host}</value></property>
</bean>



smtp_config.properties file
smtp.host=EXCH-TEST.soft-consulting.com

Assuming you're using Spring 2.5 or better, this is how the configuration should read:

Code:

---

<beans xmlns="http://www.springframework.org/schema/beans"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xmlns:context="http://www.springframework.org/schema/context"
      xsi:schemaLocation="http://www.springframework.org/schema/beans
                          http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
                          http://www.springframework.org/schema/context
                          http://www.springframework.org/schema/context/spring-context-2.5.xsd">
<beans>
    <context:property-placeholder location="classpath:smtp_config.properties"/>

    <bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
        <property name="host" value="${smtp.host}"/>
    </bean>
</beans>

---

If this does not work for you, please attach sample code, preferably buildable with Maven.