The first is ok,but the second is bad

[xiaoyao80]

Dear all,
I have installed the zimbra and configured the DNS,and I created 2 accounts in zimbra(for example A and B),I can use A and B email each other,I can see the email in the inbox folder and sent folder,however the zimbra failed when i reboot the linux,at that time I can sent email,but no receive email.why?
i post some file as follow:

[xiaoyao80]

the etc/hosts is:
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
#59.42.177.36 qualipso.org.cn qualipso
192.168.168.7 qualipso.org.cn qualipso

[xiaoyao80]

the /etc/resolv.conf is:
search qualipso.org.cn
nameserver 192.168.168.7
nameserver 192.168.168.99
nameserver 59.42.177.36

[xiaoyao80]

the /etc/named.conf is:
//
// named.conf for Red Hat caching-nameserver
//

options {
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
/*
* If there is a firewall between you and nameservers you want
* to talk to, you might need to uncomment the query-source
* directive below. Previous versions of BIND always asked
* questions using port 53, but BIND 8.1 uses an unprivileged
* port by default.
*/
// query-source address * port 53;
};

//
// a caching only nameserver config
//
controls {
inet 127.0.0.1 allow { localhost; } keys { rndckey; };
};

zone "." IN {
type hint;
file "named.ca";
};

zone "localdomain" IN {
type master;
file "localdomain.zone";
allow-update { none; };
};

zone "localhost" IN {
type master;
file "localhost.zone";
allow-update { none; };
};

zone "0.0.127.in-addr.arpa" IN {
type master;
file "named.local";
allow-update { none; };
};

zone "0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0. 0.0.0.0.0.0.ip6.arpa" IN {
type master;
file "named.ip6.local";
allow-update { none; };
};

zone "255.in-addr.arpa" IN {
type master;
file "named.broadcast";
allow-update { none; };
};

zone "0.in-addr.arpa" IN {
type master;
file "named.zero";
allow-update { none; };
};

zone "qualipso.org.cn" IN {
type master;
file "domain.zone";
allow-update{none;};
};

zone "177.42.59.in-addr.arpa" IN {
type master;
file "177.42.59.zone";
allow-update{none;};
};

include "/etc/rndc.key";

[xiaoyao80]

the /var/named/domain.zone is:
$TTL 86400
@ IN SOA qualipso.org.cn. root.qualipso.org.cn.(
2007091701 ; serial
28800 ; refresh
7200 ; retry
604880 ; expiry
86400); ttl
@ IN NS qualipso.org.cn.
IN MX 10 qualipso.org.cn.
IN A 192.168.168.7
;IN A 59.42.177.36
localhost IN A 127.0.0.1
;qualipso IN A 192.168.168.7

[xiaoyao80]

the /var/named/177.42.59.zone is:
$TTL 86400
@ IN SOA qualipso.org.cn. root.qualipso.org.cn. (
2007091701 ; serial
28800 ; refresh
7200 ; retry
604880 ; expiry
86400); ttl
@ IN NS qualipso.org.cn.
36 IN PTR qualipso.org.cn.
;99 PTR dns.domain.com.

[xiaoyao80]

the /var/log/zimbra.log is:

[phoenix]

You zip file attachment is unreadable. You are also using a domain name for your MX record it should be a FQDN (e.g. mail.qualipso.org.cn), you are also using an IP address for your external records and that should also be a hostname. You should fix your external DNS records.

Please read the DNS In A Nutshell ports in the forums (search for that) and the Split DNS article from the wiki, they both tell you how to set-up a Split DNS correctly. Once you've done that you can check the configuration by running these commands on your Zimbra server:

host `hostname`  <-- type that command exactly as you see it with backticks not single quotes
dig qualipso.org.cn mx
dig qualipso.org.cn any