OnCommandAUTH
OnCommandEXPN
OnCommandHELP
OnCommandMAIL
OnCommandRCPT
OnCommandSAML
OnCommandSEND
OnCommandSOML
OnCommandTURN
OnCommandVRFY
OnReceiveMessage
OnReceiveMessageParsed
OnReceiveRaw
OnBeforeCommandHandler
OnConnect
OnDisconnect
OnException
OnExecute
OnListenException
OnNoCommandHandler