HI ALL!)

we run smtp server on our home server... i have two questions - when I try to manually send the mail everything's ok
mail from:...
rcpt to:....
data:....
.

the problem is that when I get that mail (i simply tried on me how does it work, I don't send mail to myself usually) fields as subject, from and for was unfilled. And I wonder how can I do it so that fields would be normally filled as in normal mail. You know there should be some other SMTP commands or something to do that...

the other question is that we do not allow relying for other users than us. but we do allow relying for us and we do that with allowing sphere of ips 192.168.0.* my question is if ips beggining with 192 are reserved for LANs so we can be sure that noone could rely through our server from outside our net...

So if anyone know please help

Thanx in advance