At 12:54 11/16/2000 Thursday, Tom Rawson wrote:
 >
 >The problematic address is a compuserve address but the bounce came back
 >from AOL.  (Yes they are the same company, but I am pretty sure each runs
 >its own mail server!)

Actually AOL appears to be "running" the CS.COM mail system, at least
according to the Internet Utility NSLOOKUP when you inquire of the MX
Resource Records:

Query:Mail Exchange (MX):cs.com
cs.com  MX      15      za.mx.aol.com
cs.com  MX      15      zb.mx.aol.com
cs.com  MX      15      zc.mx.aol.com
cs.com  MX      15      zd.mx.aol.com
cs.com  MX      15      yb.mx.aol.com
cs.com  MX      15      yc.mx.aol.com
cs.com  MX      15      yd.mx.aol.com
cs.com  MX      15      ye.mx.aol.com
cs.com  MX      15      yg.mx.aol.com
cs.com  MX      15      yh.mx.aol.com
cs.com  MX      15      xa.mx.aol.com