我尝试发送JAVA的电子邮件。然而，发送到收件箱的邮件会立即发送新邮件，其中包含以下内容;
**Delivery to the following recipient failed permanently:
to-email@gmail.com
Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain gmail.com by gmail-smtp-in.l.google.com. [2a00:1450:4010:c05::1b].
The error that the other server returned was:
550-5.1.1 The email account that you tried to reach does not exist. Please try
550-5.1.1 double-checking the recipient's email address for typos or
550-5.1.1 unnecessary spaces. Learn more at
550 5.1.1 http://support.google.com/mail/bin/answer.py?answer=6596 tb1si15031715lbb.130 - gsmtp
**
我怎样才能防止这种情况发生？