이메일 전송 오류 Mail server connection failed; nested exception is javax.mail.MessagingException: Could not convert socket to TLS;

 

<property name="javaMailProperties">
    <props>
        <prop key="mail.smtp.auth">true</prop>
        <prop key="mail.smtp.starttls.enable">true</prop>
        <prop key="mail.smtp.transport.protocol">smtp</prop>
        <prop key="mail.debug">true</prop>
        <prop key="mail.smtp.ssl.trust">smtp.gmail.com</prop>
        <prop key="mail.smtp.ssl.protocols">TLSv1.2</prop>
    </props>
</property>

 

 

기존 코드에

 

    <prop key="mail.smtp.ssl.trust">smtp.gmail.com</prop>
    <prop key="mail.smtp.ssl.protocols">TLSv1.2</prop>

 

두 개의 코드를 추가했다.