Originally Posted by arun87_ece
Mailserver is located in another location(Different Static IP).
Squid proxy is to block some wesites & Downloads.
No rules are set in iptables. iptable is empty.
ok...more info is needed still.
you say outlook cannot communicate with mailserver.
communicate as in...ping?? traceroute./... telnet to smtp port???
all or some of the above??? where is traceroute failing?? can you tracepath to port 25??? then we can see where it might be failing??
show output from iptables --list
i want to check default policies...
also logs on mailserver...are they picking up access attempts??
more more more info please or at least list some of the troubleshooting methods you have tried so we dont have to keep covering them....