I have been a list owner for five years of TAXACOM a list for biologists and have finally decided that it would be useful for the subscribers to have an-mail address in all of the list mail that they receive which points them to help, like this: Taxacom-List-Help: [log in to unmask] Because, I am a mere owner and not a manager of a listserv, I don't know if this can be easily done. Would anyone know if the above line could be inserted as a mail header in outgoing list mail? Our software is the 1.8a release on Berkeley's IBM mainframe. Many thanks, Jim Beach UC Berkeley/Museum Informatics Project