I got a new SG125 (V9) appliance and attempted to replace my old UTM120 (V8) with it.
I uploaded the last settings backup into the SG125 and when I checked all the settings seemed to have come over correctly and everything appeared fine.
When I did the physical replacement and put the new appliance on the network everything seemed to work. Our site to site VPN was up, internet surfing and file uploading worked, etc... I thought everything was golden.
Then I found there was no inbound email traffic. Nothing was coming in over the LAN and anyone attempting to send or receive emails from outside the LAN was getting connection errors. I attempted to telnet to the appliance over port 25 from the WAN side and couldn't connect. Then I tried the LAN side and was able to connect and sent an email manually with no problems.
One final thing I attempted was setting up a firewall rule to pass all traffic. While that ran, I tried connecting from the WAN side again and checked the log but there were no connection attempts showing.
* I am using the SMTP Proxy in simple mode (no profiles) which then either relays (when applicable) emails or delivers to the internal email server.
* NAT and Firewall settings are all the same between the appliances. Nothing is blocking or changing inbound email ports.
...and yet somewhere, somehow all the email ports are being blocked...
In the end I had to put the old 120 back in place. [:(]
Does anyone have any ideas what I might be missing or should check?
Thanks
--
Loren McDonald
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