Can't send system emails

[surrealist]

First of all, this is my first post here, so hello to everybody who reads me


I've just installed a Zimbra OS version on a CentOS 5.5 machine, and I have a little problem.

I can send emails perfectly to example.com and external domains from any account I've created, but there are some emails that i can't send. What I'm trying to do is simple, just in a terminal:

<CODE>
echo “This was a test” | sendmail -f anyaccount@example.com root
</CODE>

This generates a response to anyaccount@example.com that says:

<code>
<root@server2.myfanta.com>: mail for server2.example.com loops back to myself
</code>

The problem is that root account points to root@server2.example.com instead root@example.com

My configuration looks like this:

hostname: server2.example.com

cat /etc/hosts
<code>
# Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1 localhost.localdomain localhost

11.11.11.11 server2.example.com server2

</code>

dig example.com mx

<code>

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> example.com mx

;; global options: printcmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 45469

;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 3



;; QUESTION SECTION:

;example.com. IN MX



;; ANSWER SECTION:

example.com. 7250 IN MX 10 mail.example.com.



;; AUTHORITY SECTION:

example.com. 45157 IN NS ns1.example.com.

example.com. 45157 IN NS ns2.example.com.



;; ADDITIONAL SECTION:

mail.example.com. 7250 IN A 11.11.11.11

ns1.example.com. 7250 IN A 11.11.11.11

ns2.example.com. 7250 IN A 22.22.22.22



;; Query time: 0 msec

;; SERVER: 213.186.33.99#53(213.186.33.99)

;; WHEN: Tue Sep 28 15:29:26 2010

;; MSG SIZE rcvd: 134
</code>

db.named.example.com

<code>
example.com. 14400 IN MX 10 mail
mail 14400 IN A 11.11.11.11
server2 14400 IN A 22.22.22.22 ; Main IP

22-22-22-22 14400 IN A 11.11.11.11 ; Secondary Ip (Failover)
</code>

cat /etc/aliases

<code>
root: system-server2@example.com
</code>

The server that has installed Zimbra is the only that can send this emails to root, the rest of the servers i have send this ones normally.

This server only have one domain: example.com

Anyone have an idea of what is happening here? All comments are welcome and apreciated.

Thank you!