Versions of the SOCKS protocol
Aspose.Email (in Aspose.Email.dll) Version: 20.2
Public Enumeration SocksVersion
public enum class SocksVersion
SOCKS4 and SOCKS4a version
SOCKS4a extends the SOCKS4 protocol to allow a client to specify a destination domain name rather than an IPv4 address;
this is useful when the client itself cannot resolve the destination host's domain name to an IP address.
The SOCKS5 protocol is defined in RFC 1928. It is an extension of the SOCKS4 protocol;
it offers more choices for authentication, and adds support for IPv6 and UDP, the latter of which can be used for DNS lookups.