E-mail is not symmetrical. E-mail is also "spoofable." Configurations "break." The Domain Name System is not always in synch. The user authorization process is not always reliable/available. -- co-owner INFOSYS, TQM-L, CPARK-L, ERAPPA-L, JANITORS, LDBASE-L, et -L URL:mailto:[log in to unmask] "Kids: don't e-mail to strangers!"