SMail Server

myid = os.getComputerID()
print("SMail Server " ..myid.." now online.")
rednet.open("right")
while true do
id, message = rednet.receive()
if message == "4CTIV3" then
rednet.broadcast("Computer " .. id .. " connected to the BBS")
print("Computer " .. id .. " connected to the BBS via Modem.")
end
if message == "readmail" and fs.exists(id) then
mail = fs.open(id, "r")
print("Computer " .. id .. " read his Mail.")
readmail = mail.readAll()
rednet.broadcast(readmail)
mail.close()
fs.delete(id)
end
if message == "sendmail" then
id1, to = rednet.receive()
mail = fs.open(to, "w")
mail.writeLine("From: " .. id)
mail.writeLine("To: " .. to)
id2, tm = rednet.receive()
mail.write(tm)
mail.close()
print("Computer " .. id .. " sent Mail to " .. to)
end
end