How to configure Spring JavaMailSender for SES using SMTP?

Question

We are trying to configure Spring JavaMailSender to work with Amazon's SES service using SMTP, but we are getting this error:

javax.mail.MessagingException: Could not connect to SMTP host: email-smtp.us-east-1.amazonaws.com, port: 465, response: -1

This is our configuration:

<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
    <property name="host" value="email-smtp.us-east-1.amazonaws.com" />
    <property name="port" value="465" />
    <property name="username" value="..." />
    <property name="password" value="..." />
    <property name="javaMailProperties">
        <props>
            <prop key="mail.smtp.auth">true</prop>
            <prop key="mail.smtp.ssl.enable">true</prop>
        </props>
    </property>
</bean>

Any ideas what could be wrong? Thanks in advance.

PS: We already tried the solution here: Could not connect to SMTP host: email-smtp.us-east-1.amazonaws.com, port: 465, response: -1 without any luck.

Answer 1

Based on @GuCo answer: This is the full configuration that worked for me:

<bean id="mailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
    <property name="host" value="email-smtp.us-east-1.amazonaws.com" />
    <property name="port" value="465" />
    <property name="protocol" value="smtps" />
    <property name="username" value="..." />
    <property name="password" value="..." />
    <property name="javaMailProperties">
        <props>
            <prop key="mail.smtps.auth">true</prop>
            <prop key="mail.smtp.ssl.enable">true</prop>
            <prop key="mail.transport.protocol">smtps</prop>
        </props>
    </property>
</bean>

Do not forget the <property name="protocol" value="smtps" /> configuration, or else the javaMailProperties are not taken into consideration.