edit..you specify mass e-mail..why? This is a mass Private Message mod, not mass e-mail.
There is another mod like that already, so that would not have even been considered. Also the adminstrator is the only one who can send the mass PM in my mod. The other mod, ANYONE can send a mass PM..its also alot more work for you to install. This takes a maximum of 30 seconds to install..and even some one with no php knowledge could install it.
Oh.. Sorry, I read it wrong, my bad. My brain must note be firing all six clyinders!!