MemoServ allows users to send memos to other users with registered nicks even when they are offline. Memos can be sent to individual users or to all ops in a specific channel.
Use the FORWARD command to forward all messages sent a nickname to another nickname. When a user sends a memo, they will see the nickname the memo is being forwarded to. This allows you to receive all your memos on one nickname, thus minimizing hassle and confusion.