如何获得反向DNS? [英] How to get a reverse DNS?

问题描述

我发给GMX和WEB的所有邮件都回复了潜在的垃圾邮件.我在Google中搜索时发现，我需要反向DNS.

all my mails to GMX and WEB come back with the response of spam potential. I'm searching in google and I found, that I need a reverse DNS.

我的DNS配置:

$TTL 86400
@   IN SOA ns1.first-ns.de. postmaster.robot.first-ns.de. (
    2016110200   ; serial
    14400        ; refresh
    1800         ; retry
    604800       ; expire
    86400 )      ; minimum

@                        IN NS      robotns3.second-ns.com.
@                        IN NS      robotns2.second-ns.de.
@                        IN NS      ns1.first-ns.de.

@                        IN A       999.999.999.999
localhost                IN A       127.0.0.1
mail                     IN A       999.999.999.999
www                      IN A       999.999.999.999
ftp                      IN CNAME   www
imap                     IN CNAME   www
loopback                 IN CNAME   localhost
pop                      IN CNAME   www
relay                    IN CNAME   www
smtp                     IN CNAME   www
@                        IN MX 10   mail

对于反向DNS，我必须更改什么?

What I have to change for a reverse DNS?

推荐答案

您需要创建一个ptr记录，该记录使dns可以查找您的主机名而不是ip地址.

You need to create a ptr record which enables dns to lookup your hostname rather than ip address.

示例:

100.0.168.192.in-addr.arpa.6230 IN PTR mailserver.example.com.

100.0.168.192.in-addr.arpa. 6230 IN PTR mailserver.example.com.

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