I couldn't find a mailing list where the question I have really fits in. And since it's tangentially related to Listserv, I'm posting it here. For the last week or so, all mail to Australian mailling list subscribers has been bouncing with the error: CUNYVM.CUNY.EDU unable to deliver following mail to recipient(s): <[log in to unmask]> 550 Host 'CCADFA.CC.ADFA.OZ.AU' Unknown despite the fact that the hosts (I have several) can all be verified locally using "nslookup". The postmaster at Cunyvm.Cuny.EDU confirmed there was a problem getting to Australian nodes, but that's it. Since I'm assuming that the rest of you are having similar problems, I wanted to ask two questions. One, any ideas on how to get this fixed? I have no idea who to contact. Second, what have you done with your Australian subscribers? I "SET ... NOMAIL" for all mine and hopefully will be able to re-enable their mail service soon. Any information or suggestions would be appreciated. -jj