处理邮箱被微软加入黑名单的方法

发给客户邮件时出现如下错误：
host xxx.mail.eo.outlook.com[xxx.xxx.163.247] said: 550
    5.7.1 Service unavailable; Client host [xxx.xxx.xxx..16] blocked using FBLW15;
    To request removal from this list please forward this message to
    delist@messaging.microsoft.com (in reply to RCPT TO command)
客户的邮件系统是Exchange，不知微软的过滤规则为何挡了邮件，为了让微软把我们移出黑名单，只能给他们发邮件申诉了，delist@messaging.microsoft.com，申诉邮件内容：
Please Helpme out to solve the belowisuue.
My Below IP Address are showing Blacklisted on below dns address IP Address:IP xxx.xxx.xxx.xxx . Please Help me and removemy ip from black list Thank you!
xxxxx
十分钟以后，会收到微软回复的邮件：
Hello ,
Thank you for your delisting request SRX1251909371ID. Your ticket was received on (Jun 25 2014 07:59 AM UTC) and will be responded to within 24 hours.
Our team will investigate the address that you have requested to be removed from our blocklist. If for any reason we are not able to remove your address, one of our technical support representatives will respond to you with additional information.
Regards,
Technical Support

耐心等待微软恢复你的邮件白名单。