Topic: No connection on WAN

[Guest]

I have updated a 5.5 to 5.6 and then to 6.0.1-01.
The mail works great with Clamav and also VPN but...on the same Wan there is some others PC and they cannot connect with SME:only IP from internet (extra my WAN range)can make ssh pptp smtp
I used telnet to port 25 but the message was a timeout.
Any suggestions?

[Guest]

...not a SME problem but misconfigured network!