This is a mostly dead group now...
I just retired (2) Open Endian boxes in place for pfSense Hardware.
But to try to get your situation fixed.
You need to NAT the incoming interface and set the rule (and port) to
map over to the correct values to talk to your server. If you have
antivirus or any other options that might interfere with normal mail ops
on the EFW - disable those, once you have smtp on 26, just do a
portmapping from 25 to 26... (in all honesty, if you can run SSL - best
way) - and I believe you can make that transparent though the
firewall/proxy, depending on how you have it setup.
Let me know what the IP schemes are on each and... and what the EFW(s)
are config'd as far as IP and routes...
Thanks
Jason
On 6/16/15 5:20 PM, Victor Amram wrote:
Hello - I'm trying to receive email on a non-standard port. I use a
3rd-party MX record service which sends to my internal domain on TCP
port 26. I have a DNAT rule configured to listen for incoming
connections on TCP 26 and ALLOW/forward the connection to my internal
server running SMTP on port 26 instead of 25.
This works seamlessly when I point the router to send port 26 traffic
to a Microsoft ISA 2004 server that I'm trying to retire, but fails
miserably with the EFW. No mail at all comes in if I switch the NAT
to point to the RED interface of the EFW, but it does work if I point
it to the equivalent "RED" interface of the MS ISA server.
I've tried disabling the IDS, same result, no mail gets in.
The EFW is behind my ISP router, so the RED interface is using a
private IP in the 192.168.10.x range. The Green interface is on my
internal network, and my mail server is using a 172.16.x.x IP address.
Please help!
Thanks,
VW72
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