Abstract: A first party provides a key phrase to a second party so that the second party can later initiate and send an electronic communication, such as an email message, to the first party with the key phrase included, typically in a prominent fashion such as in the subject line of the email message. In this way, the first party recipient of the email message can readily tell that the electronic communication was sent by the second party sender of the email message thus providing a measure of trust in the electronic communication.

Abstract: A calibration system and method for a multi-toolhead machine. A calibration device is installed onto the machine. When a first toolhead is calibrated with respect to the calibration device, based upon the change in position between the first toolhead and a predetermined reference on the calibration device, all of the remaining toolheads are automatically calibrated. The system is set up by calibrating each toolhead with respect to the calibration device and determining an offset between the calibrated position of each toolhead and the calibration of the first toolhead.

Abstract: A calibration system and method for a multi-toolhead machine. A calibration device is installed onto the machine. When a first toolhead is calibrated with respect to the calibration device, based upon the change in position between the first toolhead and a predetermined reference on the calibration device, all of the remaining toolheads are automatically calibrated. The system is set up by calibrating each toolhead with respect to the calibration device and determining an offset between the calibrated position of each toolhead and the calibration of the first toolhead.