I can make it work.
C:\Program Files\jasperreports-server-4.1\apache-tomcat\webapps\jasperserver-pro\WEB-INF\js.quartz.properties
report.scheduler.mail.sender.host=smtp.gmail.com
report.scheduler.mail.sender.username=username@gmail.com
report.scheduler.mail.sender.password=s3cr3t
report.scheduler.mail.sender.from=username@gmail.com
report.scheduler.mail.sender.protocol=smtps
report.scheduler.mail.sender.port=465
C:\Program Files\jasperreports-server-4.1\apache-tomcat\webapps\jasperserver-pro\WEB-INF\applicationContext-report-scheduling.xml
<bean id="reportSchedulerMailSender" class="org.springframework.mail.javamail.JavaMailSenderImpl">
<property name="host" value="${report.scheduler.mail.sender.host}"/>
<property name="username" value="${report.scheduler.mail.sender.username}"/>
<property name="password" value="${report.scheduler.mail.sender.password}"/>
<property name="protocol" value="${report.scheduler.mail.sender.protocol}"/>
<property name="port" value="${report.scheduler.mail.sender.port}"/>
<property name="javaMailProperties">
<props>
<prop key="mail.smtps.auth">true</prop>
<prop key="mail.smtps.starttls.enable">true</prop>
</props>
</property>
</bean>
