It means one or more authoritative name servers is misconfigured. You can use NSLOOKUP or DIG to find out which one and/or you can try to find the hostmaster (and then if they are are not at the same "broken" site) e-mail them. Of course you can prevent future auto-deletes by reconfiguring your list (but I don't recommend it). Broken DNS configs and/or mailers occur all the time on the Internet. That's the price you pay for open systems: too many fingers (unwashed ;-)) in the pie. In this particular case, a DNS definition for e-Mail hostB that is used to "eXchange" (mx) mail for hostA could not be "resolved" for the IP address of hostB since it was not placed in the DNS. It's sortof/kinda like forwarding your office telephone to your home phone, but programming a non-existant home number. Your caller rings you (perhaps via speed dial) like they always do, but then get a telco intercept that says your number is not in-service. -- co-owner INFOSYS, TQM-L, CPARK-L, ERAPPA-L, JANITORS, LDBASE-L, et -L [log in to unmask] "My lists are w/o PEERS ;-)" s/me +1 814 863 1843 31 Shields Bldg. -- Penn State Univ -- University Park, PA 16802-1202 USA