If you have a look at the lines from the debug window you can clearly see the line sent to the server then the server sending the 301 reply then the message that was sent and who sent it.

line sent to server and with who it was for
[11:12] -> mesra.kl.my.dal.net PRIVMSG moet :FLOODCHECK
301 reply
[11:12] <- :mesra.kl.my.dal.net 301 moet moet :testing something ..
message returning
[11:12] <- :moet!zebra@218-101-96-20.dialup.clear.net.nz PRIVMSG moet :FLOODCHECK