private messange "read receipt", exist???[free]

[marcoaureliocommodo]

hello
is there a mod that plays the following function:
when the recipient opens it my private message I get a private message where is written for example "he has read the message"

thanks

[All Colours Sam]

http://custom.simplemachines.org/mods/index.php?mod=1629

[Matthew K.]

The modification Suki linked you to should work, can you confirm that it does?