Java Mail郵件SMTP協議返回信息 535 5.7.3 Authentication unsuccessful.

當郵件使用SMTP協議 身份認證時，如果出現

javax.mail.AuthenticationFailedException: 535 5.7.3 Authentication unsuccessful.

則說明你的用戶名與你的密碼不正確導致驗證失敗！

SMTP_AUTH_Fail_Response Message

SMTP_AUTH_Fail_Response is defined as follows. This message, identified by the 535 status code, is defined in [RFC2554] section 4, and indicates that the authentication has terminated unsuccessfully because the user name or password is incorrect.

 535 5.7.3 <human-readable-string><CR><LF>

詳情見SMAP協議SMAP