A method and apparatus for determining whether a party sending an email communication is on a list of parties authorized by the intended receiving party. The LED tracking ring is capable of additive color mixing and in turn can simulate the color of the main projected light projecting from the main output aperture or output lens of the multiparameter light. The SOI device region has a second device-fabrication surface in which an SOI device is positioned on the silicon layer. Thereby, the cost of production of the present invention can be lowered, and tearing off of the adhesive strips is convenient. The processor also generates a second set of subcarrier signals corresponding to the CCI. The method also includes removing the aft plate from the bundled tube fuel injector to expose a portion of a plurality of pre-mix tubes so as to allow for inspection repair andor replacement of one or more of the plurality of pre-mix tubes.