Javax.mail. Mail. SendFailedException: Sending failed problem

Recently, I have been using the email sending function, and I always encountered problems. I found it later. It was not caused by a program problem.

javax.mail.SendFailedException: Sending failed; 
 nested exception is: 
class javax.mail.MessagingException: 554 MI:STC 0,smtp10,DsCowLC7LwPACzRN7qcQAA--.2883S2 1295256512 
at javax.mail.Transport.send0(Transport.java:218) 
at javax.mail.Transport.send(Transport.java:80) 
at mbspublic.mail.sendmail.sendmsg_mediaset(sendmail.java:1302) 
at mbspublic.mail.sendmail.main(sendmail.java:1962) 

In fact, this is a problem of server 163. Your email delivery rate is too high, so it has been temporarily restricted