最近使用金笛邮件遇到的退信问题
 

收到退信：
<Failure Reason>
The maximum number of tentatives has been reached
</Failure Reason>

Below is reported the message header:

查看SMTP日志，里面只有成功发送的有记录。
然后查看SENDMAIL日志，里面记录：
SMTP-Send MX="maila.mailex.chinaunicom.cn." SMTP-Helo="mail.tnetstar.com" MessageID="S259A1A19EE" RealFrom="liu.lu@tnetstar.com" RealTo="zhangkui5@chinaunicom.cn" From="liu.lu@tnetstar.com" To="zhangkui5@chinaunicom.cn" Failed! [level1 ErrCode=-41 ErrString="Bad server response" ErrInfo="can't get remote smtp server welcome message(-1000)"]
2010-04-02 15:25:48 [0] [DEBUG] [1503] success to connect remote SMTP server(mailb.mailex.chinaunicom.cn.:202.108.100.145)
2010-04-02 15:26:17 [0] [DEBUG] [20030] fail to create channel
2010-04-02 15:26:17 [0] [ERROR] [1121] SMTP-Send MX="mailb.mailex.chinaunicom.cn." SMTP-Helo="mail.tnetstar.com" MessageID="S259A1A19EE" RealFrom="liu.lu@tnetstar.com" RealTo="liwei.lin@chinaunicom.cn" From="liu.lu@tnetstar.com" To="liwei.lin@chinaunicom.cn" Failed! [level1 ErrCode=-41 ErrString="Bad server response" ErrInfo="can't get remote smtp server welcome message(-1000)"]
2010-04-02 15:26:17 [0] [DEBUG] [1503] success to connect remote SMTP server(mailc.mailex.chinaunicom.cn.:202.108.100.145)
2010-04-02 15:26:17 [0] [DEBUG] [20030] fail to create channel
2010-04-02 15:26:17 [0] [ERROR] [1121] SMTP-Send MX="mailb.mailex.chinaunicom.cn." SMTP-Helo="mail.tnetstar.com" MessageID="S259A1A19EE" RealFrom="liu.lu@tnetstar.com" RealTo="wangchb@chinaunicom.cn" From="liu.lu@tnetstar.com" To="wangchb@chinaunicom.cn" Failed! [level1 ErrCode=-41 ErrString="Bad server response" ErrInfo="can't get remote smtp server welcome message(-1000)"]
2010-04-02 15:26:17 [0] [DEBUG] [1503] success to connect remote SMTP server(mailc.mailex.chinaunicom.cn.:202.108.100.145)
2010-04-02 15:26:18 [0] [DEBUG] [20030] fail to create channel
2010-04-02 15:26:18 [0] [ERROR] [1121] SMTP-Send MX="mailb.mailex.chinaunicom.cn." SMTP-Helo="mail.tnetstar.com" MessageID="S259A1A19EE" RealFrom="liu.lu@tnetstar.com" RealTo="zhangkui5@chinaunicom.cn" From="liu.lu@tnetstar.com" To="zhangkui5@chinaunicom.cn" Failed! [level1 ErrCode=-41 ErrString="Bad server response" ErrInfo="can't get remote smtp server welcome message(-1000)"]
2010-04-02 15:26:18 [0] [DEBUG] [1503] success to connect remote SMTP server(mailc.mailex.chinaunicom.cn.:202.108.100.145)
2010-04-02 15:26:47 [0] [DEBUG] [20030] fail to create channel
2010-04-02 15:26:47 [0] [ERROR] [1121] SMTP-Send MX="mailc.mailex.chinaunicom.cn." SMTP-Helo="mail.tnetstar.com" MessageID="S259A1A19EE" RealFrom="liu.lu@tnetstar.com" RealTo="liwei.lin@chinaunicom.cn" From="liu.lu@tnetstar.com" To="liwei.lin@chinaunicom.cn" Failed! [level1 ErrCode=-41 ErrString="Bad server response" ErrInfo="can't get remote smtp server welcome message(-1000)"]
2010-04-02 15:26:47 [0] [DEBUG] [20030] fail to create channel
2010-04-02 15:26:47 [0] [ERROR] [1121] SMTP-Send MX="mailc.mailex.chinaunicom.cn." SMTP-Helo="mail.tnetstar.com" MessageID="S259A1A19EE" RealFrom="liu.lu@tnetstar.com" RealTo="wangchb@chinaunicom.cn" From="liu.lu@tnetstar.com" To="wangchb@chinaunicom.cn" Failed! [level1 ErrCode=-41 ErrString="Bad server response" ErrInfo="can't get remote smtp server welcome message(-1000)"]
2010-04-02 15:26:48 [0] [DEBUG] [20030] fail to create channel

退信解答
 

造成这种退信的原因很多，比如金笛邮件在给其他邮件服务器发信的时候，长时间连接不到对方邮件服务器就会造成这样的退信。加下我QQ1290953659 咱们一起解决这个问题:)