>>> URGENT !!!!!! How can i learn port number in c# ???

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hi all,

i wrote a programme using c#.net 2003 and there is an e-mail section in
it.

i have to learn immediately that when i sent an e-mail with my
programme, which port does it uses ???


i heared a port name called 8080 or something like this... can it be
this port ?? or anyother???



thnaks for now

.