企业云邮箱不能给国外邮箱发送邮件也经常不能收到国外件

[size=font-size: 10.5pt,10.5pt]很抱歉，您发送的邮件被退回，以下是该邮件的相关信息：[size=font-size: 10.5pt,10.5pt]

[size=font-size: 9pt,9pt] Fri, 22 May 2015 09:05:59 +0800

[size=font-size: 9pt,9pt]发送电子邮件[size=font-size: 9pt,9pt] : [size=font-size: 9pt,9pt]无线上网系统检修维护文件[size=font-size: 9pt,9pt] .rar

[size=font-size: 9pt,9pt] liufei@cqsf.com

[size=font-size: 9pt,9pt]对方服务器连接被拒绝。[size=font-size: 9pt,9pt]
(9)connect to the "mail.cqsf.com(221.215.218.88) of cqsf.com" server failed
[size=font-size: 9pt,9pt]联系管理员解决。[size=font-size: 9pt,9pt]


[size=font-size: 10.5pt,10.5pt]很抱歉，您发送的邮件被退回，以下是该邮件的相关信息：[size=font-size: 10.5pt,10.5pt]

[size=font-size: 9pt,9pt] Fri, 22 May 2015 09:05:59 +0800

[size=font-size: 9pt,9pt]发送电子邮件[size=font-size: 9pt,9pt] : [size=font-size: 9pt,9pt]无线上网系统检修维护文件[size=font-size: 9pt,9pt] .rar

[size=font-size: 9pt,9pt] niubuzhao@cqsf.com