I have one public Ip address and wants to nat with one DMZ address and one insdie address
DMZ address for smtp ( anyone from outside should be able to connect to smtp server)
Inside address for http ( anyone from internet should be able to access web-server )
Is this possible.
"Can I do the same without using ASA external (Outside) IP.
Assuming I have one free public IP."
Yes, as long as the public IP address has been assigned to your company.
The static statements would change slightly ie.
assuming free public IP - 18.104.22.168
static (inside,outside) tcp 22.214.171.124 80 web-server-ip 80 netmask 255.255.255.255
static (dmz,outside) tcp 126.96.36.199 25 mail-server-ip 25 netmask 255.255.255.25
"Is similar scenario documented on cisco documentation. Any Help."
Pretty much any docs on ASA configuration will include this so a quick search "ASA configuration guides" would give you a list of docs to use.