我在www@xxxx.com邮箱内发现大量主题为：iRedMail SMTP server: errors from unknown[12.12.123.123】的邮件，内容如下：
Transcript of session follows.

Out: 220 c6.d.de.static.xlhost.com ESMTP iRedMail
In:  EHLO snt0-omc2-s31.snt0.hotmail.com
Out: 250-c6.d.de.static.xlhost.com
Out: 250-PIPELINING
Out: 250-SIZE 15728640
Out: 250-ETRN
Out: 250-STARTTLS
Out: 250-AUTH PLAIN LOGIN
Out: 250-AUTH=PLAIN LOGIN
Out: 250-ENHANCEDSTATUSCODES
Out: 250-8BITMIME
Out: 250 DSN
In:  MAIL FROM:<timothyiller@hotmail.com> SIZE=11903
Out: 250 2.1.0 Ok
In:  RCPT TO:<support@leawo.com>
Out: 451 4.3.0 <timothyiller@hotmail.com>: Temporary lookup failure
In:  RSET
Out: 250 2.0.0 Ok
In:  QUIT
Out: 221 2.0.0 Bye

而且客户端我用foxmail，总是提示我密码错误，重输入密码，但我的密码是正常的，谢谢！