Mailing Lists at UD: Class and major lists (P.O. Box)

The P.O. Box system is a closed system used to send messages to pre-defined lists of students and employees. It is useful if you want to send messages to

It is a closed system; that is, if you want to send a message to a UD P.O. Box list, you must log in to the P.O. Box service. In addition, you can only use P.O. Box to send messages to other University of Delaware email addresses (e.g.,,, etc.). Because it is a closed system, members of a P.O. Box list are not subject to spam messages.

Further information

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