邮件无故被退，难题啊，谁能帮忙看看

luchuxiang

Thank you for contacting Barracuda Networks regarding confirmation number: BBR203-9.

We apologize for any inconvenience that this may have caused you.  Since this is not your first request for this IP, the reputation of this IP address will *not* be upgraded during the investigation.  When our investigation is complete, you will receive a decision via email.

There are a number of reasons this IP address may have been listed as "poor", including:

1. The email server at this IP address contains a virus and has been sending out spam
2. The email server at this IP address may be configured incorrectly
3. The PC at this IP address may be infected with a virus or botnet software program
4. An individual in the organization at this IP address may have a PC infected with a virus or botnet program
5. This IP address may be a dynamic IP address which was previously utilized by a known spammer
6. The marketing department of a company at this IP address may be sending out bulk emails that do not comply with the CAN-SPAM Act
7. This IP address may have a insecure wireless network attached to it which could allow unknown users to use it's network connection to send out bulk email
8. In some rare cases, your recipients' Barracuda Spam Firewall may be misconfigured

If you do not think any of the above apply, please contact the person who manages this IP address, as they may be better able to investigate this issue.

As a courtesy, we have also checked several of the popular Realtime Black Lists for the IP address: 58.253.116.82.  This IP currently appears on the following RBLs (and needs to be handled through their own delisting processes):

CBL - Composite Blocking List at http://cbl.abuseat.org/
XBL - Spamhaus XBL at http://www.spamhaus.org/xbl/
SBLXBL - Spamhaus SBLXBL at http://www.spamhaus.org/xbl/
ZEN - Spamhaus ZEN at http://www.spamhaus.org/zen


Thank you for your time and understanding.

Barracuda Central by Barracuda Networks
http://www.barracudacentral.com/
intent@barracuda.com

luchuxiang

救命啊。。是什么原因啊