The !full command shows you the full message given the UID displayed by the !mstatus command. It will not display messages not sent or recieved by you.

Syntax: !full UID

Example:

OvEn ToAsT (11:47:36 PM): !full 7357

toasts aim bot 0 (11:47:39 PM): examplesn: [Aug 7 21:39 UTC] will you check the /etc/inittab file on id to make sure the stuff that I did to it won't kill the computer?

Note: This message reproduced with the permission of the original sender, whose name has been replaced out of respect for privacy.