Undelivered Mail Returned to Sender

Dear ,

I have 2 local domain encverdi.com (Windows domain) and enclocal.com (Linux domain). From enverdi.com domain can see and nslookup enclocal.com domain by I have configured DNS correctly. But from enclocal.com domain, I cannot see and understand encverdi.com.
Then I try to sent a mail from [email protected] to [email protected] and I get error message like below.

--------------------
<[email protected]>: Host or domain name not found. Name service error for
name=encverdi.com type=A: Host not found
--------------------

This is /var/named/forward.enclocal file:
--------------------
$TTL 86400
@ IN SOA dnsrv.enclocal.com. root.enclocal.com. (
2011071001 ;Serial
3600 ;Refresh
1800 ;Retry
604800 ;Expire
86400 ;Minimum TTL
)
@ IN NS dnsrv.enclocal.com.
@ IN A 192.168.10.42
@ IN A 192.168.10.224
mail IN A 192.168.10.42
encverdi.com. MX 10 mail.enclocal.com.
dnsrv IN A 192.168.10.42
fed19vm IN A 192.168.10.224
--------------------

This is /var/named/reverse.enclocal file:
--------------------
$TTL 86400
@ IN SOA dnsrv.enclocal.com. root.enclocal.com. (
2011071001 ;Serial
3600 ;Refresh
1800 ;Retry
604800 ;Expire
86400 ;Minimum TTL
)
@ IN NS dnsrv.enclocal.com.
@ IN PTR enclocal.com.
mail IN A 192.168.10.42
dnsrv IN A 192.168.10.42
fed19vm IN A 192.168.10.224
42 IN PTR mail.enclocal.com.
42 IN PTR dnsrv.enclocal.com.
224 IN PTR fed19vm.enclocal.com.
--------------------

This is /etc/named.conf file:
--------------------
//
// named.conf
//
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS
// server as a caching only nameserver (as a localhost DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//

options {
listen-on port 53 { 127.0.0.1; 192.168.10.42; }; #Thaw: Master DNS IP Address
listen-on-v6 port 53 { ::1; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
allow-query { localhost; 192.168.10.0/24; }; #Thaw: Range IP Address
recursion yes;

dnssec-enable yes;
dnssec-validation yes;
dnssec-lookaside auto;

/* Path to ISC DLV key */
bindkeys-file "/etc/named.iscdlv.key";

managed-keys-directory "/var/named/dynamic";
};

logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};

zone "." IN {
type hint;
file "named.ca";
};
###BEGIN
zone"enclocal.com" IN {
type master;
file "forward.enclocal";
allow-update { none; };
};
zone"10.168.192.in-addr.arpa" IN {
type master;
file "reverse.enclocal";
allow-update { none; };
};
###END
include "/etc/named.rfc1912.zones";
include "/etc/named.root.key";
----------------------

Please give me advise to configure DNS server and make it works.
Thanks and looking for your quick reply!
Thaw TRAN