Waitforauth 1 - this means they have to have Imm authorization before they can pass through the Spectral Gates and enter the main part of your MUD.
If you don't want this you can go into your system directory and open up sysdata.dat and set Waitforauth's # to 0. This will pass them into the MUD without Imm authoriation.
Then leave Waitforauth on 1, then as the new character moves through the pre-auth area you'll see a log that says: Auth: PlayerName@###.###.###.### new Race Class (Deadly/Peaceful) applying... at this point you can either...
If you want an Immortal to auth the new players, yes. If there is not an Imm on when a new player logs on after so long the MUD will auto-auth them I believe.
Or you can rewrite the preauth code to whatever you like.