Also in order to escape the "target flood limit" you can use the CPRIVMSG command, but not all networks support that, for seeing if your network support that or not, on connect look at the status messages if that command is there.. You must see somethink like WHOX WALLCHOPS WALLVOICES USERIP CPRIVMSG CNOTICE SILENCE=15 MODES=6 MAXCHANNELS=20 MAXBANS=45
For ussing that command you must have op on the channel where the user join, the syntax is:
CPRIVMSG <nick> <channel> <text>
You can use in mIRC /cprivmsg nick #ChannelwhereYouAre op the message