Unable to access to internal server web from outside through DNAT firewall rule

Could you also provide a screenshot of the DNAT rule itself?

...

This is still a firewall rule, see my screenshot for the NAT rules

Any one can help please

You should not have MASQ enabled for DNAT since I presume you want your internal server to respond to the public IP address on the WAN.  Did you follow this Sophos guide?
Sophos DNAT guide

Thank u for ur reply just simple question regarding the port number in my case I have 8224 of port to reach the server does i put 8224 for both service and pat? 

i followed the guide above but i allways got the same error

and when i try to access the server  throuph public IP it blocked 

no rule matched

Very simple your external port range should be 1:65535.

Ian

Good day Rachid,

I suggest, if you are still having difficulty, to use the NAT Server Access Assistant found here:
Rules and policies > NAT rules > Add NAT rule > Server access assistant (DNAT)

I just tried this for an internal server.  It asks a couple of questions then automatically creates the DNAT & Reflexive rules along with the required firewall rule.  This only took a minute or two to get working for my particular server.

To follow-up on this, it appears you can only configure internal servers using IPv4 and not IPv6.  Unless I am missing something, the NAT and firewall rules for IPv6 have no #Ports meaning I cannot configure them to receive requests incoming on any #Ports.

To follow-up on this, it appears you can only configure internal servers using IPv4 and not IPv6.  Unless I am missing something, the NAT and firewall rules for IPv6 have no #Ports meaning I cannot configure them to receive requests incoming on any #Ports.