退信问题
邮件系统最近恢复了一下,以前能发的一些地址,最近出现了些退信,大家帮我分析下。mail.c-snd.com: 554 Service unavailable; Client host blocked using Barracuda Reputation; http://www.barracudanetworks.com/reputation/?r=1&ip=222.92.104.106)
(mail.messaging.microsoft.com: 550 Service unavailable; Client host blocked using 88.blacklist.zap; Mail From IP Banned To request removal from this list please forward this message to delist@frontbridge.com)
奇怪的是222.92.104.106是我们公司网关的ip,我们公司邮件ip是222.92.104.99。
blocked using Barracuda Reputation
blocked using 88.blacklist.zap
黑名单 按照退信的信息联系相关组织解封即可。
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