Csf Doesnt Allow Out/income Emails

my forum is VB and its doesnt sent any email for users!

i check the options and everything looks fine ..

my vps had csf firewall installed ..

the csf.conf is

# Lists of ports in the following comma separated lists can be added using a
# colon (e.g. 30000:35000).

# Allow incoming TCP ports
TCP_IN = "53,1116,80"

# Allow outgoing TCP ports
TCP_OUT = "53,80,3306,1116"

# Allow incoming UDP ports
UDP_IN = "1116,53"

# Allow outgoing UDP ports
# To allow outgoing traceroute add 33434:33523 to this list
UDP_OUT = "53,1116"

# Allow incoming PING
ICMP_IN = "0"

# Set the per IP address incoming ICMP packet rate
# To disable rate limiting set to "0"
ICMP_IN_RATE = "1/s"

# Allow outgoing PING
ICMP_OUT = "1"

# Set the per IP address outgoing ICMP packet rate
# To disable rate limiting set to "0"
ICMP_OUT_RATE = "1/s"

and the version of csf is

[root@www csf]# /usr/sbin/csf -v
csf: v4.56 (generic)
[root@www csf]#

am useing centOS5 and ssh port 1116

am not useing any of control panel or ftp ...

the email i configured it with google.com/a services ..