C # obtain the email IP address and email name.

Using system. net;

///   <Summary>
/// Obtain the email address used.
///   </Summary>
Public   Void Getuserinfo ()
{
String SIP =   "" ;

// Method 1
String Machinename = System. environment. machinename;
// Method 2
String Strhostname = DNS. gethostname ();

IPaddress [] ADDR;

// Obtain IP method 1
// ADDR = DNS. gethostaddresses (strhostname );
// Method 2
ADDR = DNS. gethostaddresses ( " 127.0.0.1 " );
// Method 3
// ADDR = DNS. gethostaddresses ("localhost ");

// Method 4
// iphostentry ihip = DNS. gethostentry (strhostname);
// ADDR = ihip. addresslist;

//Obtain the IP method 5, which indicates the old warning.
ADDR=DNS. gethostbyname (DNS. gethostname (). Addresslist;

If (ADDR. Length <= 1 )
{
SIP = ADDR [ 0 ]. Tostring ();
}
Else
{
For ( Int Icount =   0 ; Icount < ADDR. length; icount ++ )
{
SIP + =   " IP "   + (Icount +   1 ). Tostring () +   " : "   + ADDR [icount]. tostring () +   "   " ;
}
}
}