客户来信反映说邮件发送失败，退信内容如下：
reason: 554 Service unavailable; Client host [*********邮件服务器] blocked using Barracuda Reputation; http://bbl.barracudacentral.com/q.cgi?ip=116.231.5.113)
解决方法参考如下说明:
 
1.当你采用outlook express 客户端软件采用尚易企业邮箱发信服务器smtp.corpease.net 或者smtp.c2.corpease.net 来发送邮件给[email protected]时,收到一封系统退信.如下信息:
rThe message to [email protected] is bounced because : SMTP error,
DOT: 554 Service unavailable; Client host [mail3.corpease.net] blocked using Barracuda Reputation;
http://bbl.barracudacentral.com/q.cgi?ip=219.137.86.109
2. 如上信息显示,你所在OFFICE 上网场所的上网公网的IP地址: 219.137.86.109被加入了Barracuda 的黑名单,如果您着急发信,可以打开http://mail.corpease.net 或者 http://mail.c2.corpease.net 进入Web mail来发送邮件,即可成功发送.也可以采用如下方法取消IP黑名单.首先在IE的浏览器地址栏中输入: http://bbl.barracudacentral.com/q.cgi?ip=219.137.86.109 看到如下网址http://www.barracudacentral.org/lookups/ip-reputation,如下图示:
3.如上图所示,点击"click here"按钮.弹出一个新的页面http://www.barracudacentral.org/rbl/removal-request/219.137.86.109 ,如下图所示:
2. 如上图所示:在表单中会显示有IP 地址,需要输入email address ,phone number ,等相信息,然后点击: submit request 按钮,弹出一个新的网址:http://www.barracudacentral.org/rbl/removal-request及如下信息:
Request Received
Thank you for submitting your request. If this is your first request, your IP address will have its reputation increased to "normal" for 48 hours while we investigate. It may take up to 1 hour for the reputation increase to propagate to all Barracuda Spam Firewalls globally. We appreciate your patience and apologize for any inconvenience.
Your confirmation number is BBR21248411389-10719-4260.
2. 以上信息提示 如果这是你的第一次提交，你的IP地址就会在48之内升级为“正常”,即你提交的IP地址 将会从 Barracuda 的黑名单数据库中取消掉.,然后你再用客户端软件发送邮件,就可以成功了.