MemoServ CHECK
Checks whether the last memo you sent to nick has been read or not. Note that this only works with nicks...
How to use MemoServ
MemoServ is a utility allowing IRC users to send short messages to other IRC users, whether they are online at the time or not, or to channels(*). Both the sender's nickname and the target nickname or channel must be registered in order to send a memo. Read more for commands and help.