Logged In: YES
user_id=584113

I think the default permission for newly created files
is set to 622 on your system. This is done via the
umask 022 in the /etc/profile I assume.

What you could try is alter this to umask 077,
then restart your webserver, and try again....

However, I believe this should be fixed in the BoboMail
program itself and not trust the system wide umask here.

But, at least you have a workaround.
Next step is creating a fix!