syslog server configured yet syslog server not getting any logs

hello,

i've configured syslog server on of our clients' vdom,

including the configuration -

config log syslogd override-setting <---     set override enable     set status enable     set server "CUSTOMER EXTERNAL SERVER IP (OMMITED for security measurments) "     set reliable enable     set port 601     set facility syslog <---     set source-ip "OUR VDOM EXTERNAL IP ( OMMITED for security measurments) "     set format default end config log syslogd override-filter <---     set severity notification     set forward-traffic enable     set local-traffic enable     set multicast-traffic enable     set sniffer-traffic enable     set anomaly enable     set voip enable     set dns enable     set filter ''     set filter-type include end

diagnose sniffer packet any "host ***** and port 601" 4 0 interfaces=[any] filters=[host ***** and port 601] 0.905981 ***-WAN out *****.10568 -> ******.601: fin 2063666531 ack 1219845830 0.905983 WAN out ommited.10568 -> *****.601: fin 2063666531 ack 1219845830 0.905984 port35 out ommited.10568 -> *****.601: fin 2063666531 ack 1219845830 0.906015 ***-WAN out ommited.6695 -> *****.601: syn 3437827387 0.906016 WAN out ommited.6695 -> *****.601: syn 3437827387 0.906017 port35 out ommited.6695 -> *****.601: syn 3437827387

according to the results and configuration , all configured properly yet the server doesn't receive any logs from the fortigate.

thanks in advance ,

Thomas .