Hi
Values associated with tcp and udp are max connections for the local-host with embryonic connections.
You can manage this on a policy-map. This isn't on a nat configuration anymore.
The config you posted will be translated into the following commands:
object network Mail_Server
subnet x.x.x.x 255.255.255.224
!
object network dmz.srv.Mail
host x.x.x.x
nat (dmz,outside) after-auto source dynamic dmz.srv.Mail Mail_Server
However i believe your internal mail server is natted to 1 public ip and nat command should be the following instead of the previous one:
object network Mail_Server
host x.x.x.x
!
object network dmz.srv.Mail
host x.x.x.x
nat (dmz,outside) static Mail_Server
In this case the nat is done under the group object dmz.srv.Mail
Thanks
Francesco
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