这是我的代码

spring.mail.host=smtpout.secureserver.net
spring.mail.port=465
spring.mail.username=XXXXXXXXX.com
spring.mail.password=XXXXXXXXX
spring.mail.properties.mail.transport.protocol=smtp
spring.mail.properties.mail.smtp.port=465
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true

正在显示

org.springframework.mail.MailSendException: Mail server connection failed; nested exception is javax.mail.MessagingException: Could not connect to SMTP host: smtpout.secureserver.net,port: 465,response: -1. Failed messages: javax.mail.MessagingException: Could not connect to SMTP host: smtpout.secureserver.net,response: -1
    at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:446) ~[spring-context-support-5.1.2.RELEASE.jar:5.1.2.RELEASE]
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:359) ~[spring-context-support-5.1.2.RELEASE.jar:5.1.2.RELEASE]
    at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:354) ~[spring-context-support-5.1.2.RELEASE.jar:5.1.2.RELEASE]
    at com.mbb.mbbplatform.svcs.impl.EmailServiceImpl.notifyUserByEmail(EmailServiceImpl.java:60) ~[classes/:na]
    at java.base/jdk.internal.reflect.NativeMethodaccessorImpl.invoke0(Native Method) ~[na:na]
    at java.base/jdk.internal.reflect.NativeMethodaccessorImpl.invoke(NativeMethodaccessorImpl.java:62) ~[na:na]
    at java.base/jdk.internal.reflect.DelegatingMethodaccessorImpl.invoke(DelegatingMethodaccessorImpl.java:43) ~[na:na]
    at java.base/java.lang.reflect.Method.invoke(Method.java:564) ~[na:na]