I am having the same kind of problem with List-ID= .  I made the change and
it has had overnight to mature...and listserv does not accept the alias.
 
Bob Zenhausern, Ph.D.        Internet: [log in to unmask]
St. John's University        Unibase: [log in to unmask]
SB 15 Marillac               Phone:  718-990-6447
Jamaica, NY 11439            Fax:    718-990-6705