My Sentbox doesn't work, any suggestions?
 

[Problem Solved]

When you click "Go advanced" while responding to a message, do you have an option "Save a copy of this message in your Sent Items folder" enabled?

Oh wow, I am a massive idiot, I never thought to actually read or check those settings...for some reason I thought they were all useless and ignored them. When I check the correct box it does work, so thank you for helping me realize the problem!

One thing that sort of annoys me though is that it used to ALWAYS remain checked..now it seems to have to be manually checked each time I send a message...hopefully that changes but I guess for now I can just select the messages I wish to store.

Thanks again!

You may want to check your "Edit Options" as well:
http://www.getdare.com/bbs/profile.php?do=editoptions
If it's not already, enable the option "Save a copy of sent messages in my Sent Items folder by default".
Hopefully, this will solve your problem...

Ok I found it, that should work, thanks! I'm far too impatient to scour though all these option menus lol, appreciate the help!