Anita Cohen-Williams wrote:
 
>     I have just gotten an error message from my LISTSERV stating that someone
> tried to sign on with an unknown domain. The information to the right of the @
> are all numbers (i.e. 192.245.137.1). The host postmaster doesn't recognize
> this and neither do I. I deleted the user since it will spawn countless error
> messgaes. Has anyone else run across this sort of thing before?
 
A reverse nameserver lookup shows that the message came from the metronet.com
domain.
 
;; ANSWERS:
metronet.com.   604800  MX      0 feenix.metronet.com.
 
;; ADDITIONAL RECORDS:
feenix.metronet.com.    604800  A       192.245.137.1
 
 
/BoK
 
 
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 Bo Kleve                   Mail:  [log in to unmask]
 Linkoping University       Phone: +46 13 281761
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