CentOS7.2下，Postfix+Dovecot环境下，可以发送邮件，但是不能接收

renogardhjk 2017-03-22 08:41:13

1，域名是在万网注册并解析的，如下：

2，用一台笔记本NSLOOKUP命令可以看到如下：
C:\Users\Administrator>nslookup www.hjk-mail.xyz
服务器: UnKnown
Address: 192.168.1.1

非权威应答:
名称: www.hjk-mail.xyz
Address: 114.115.211.195

C:\Users\Administrator>nslookup mail.hjk-mail.xyz
服务器: UnKnown
Address: 192.168.1.1

非权威应答:
名称: mail.hjk-mail.xyz
Address: 114.115.211.195

3，Postfix配置如下：
main.cf文件：
myhostname = mail.hjk-mail.xyz
mydomain = hjk-mail.xyz
myorigin = $mydomain
inet_interfaces = all
inet_interfaces = localhost
inet_protocols = ipv4
local_recipient_maps =
mynetworks = 168.100.189.0/28, 127.0.0.0/8
mynetworks = hash:/etc/postfix/network_table
smtpd_sasl_type = dovecot
smtpd_sasl_[ath = private/auth

smtpd_sasl_auth_enable = yes
broken_sasl_auth_clients = yes
smtpd_sasl_local_domain = $myhostname
smtpd_sasl_security_options = noanonymous
smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
smtpd_sasl_security_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
message_size_limit = 15728640

4，dovecot配置
dovecot.conf文件：
protocols = imap pop3 lmtp
listen = *, ::
disable_plaintext_auth = no
ssl = no

10-auth.conf文件：
disable_plaintext_auth = no
!include auth-system.conf.ext
!include auth-sql.conf.ext

现在是情况是能够发邮件，但是用别的邮件发邮件到这个邮箱会出现退回
退信原因：无法与收件人(root@hjk-mail.xyz)所在服务商建立连接，收件人域名可能不存在(connet to mail.hjk-mail.xyz[114.116.211.195]:Connection timed out(port:25))

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