[DM-MUG] Spam on .Mac

[John Kisner]

Today I had an avalanche of spam through my .Mac account.  It looks  
like it was generated mostly from bounced emails that I "sent" -- but  
of course I did not send.  So it looks like someone used my email  
address on .Mac to send out a load of spam to some email list that had  
been collected.  Some of the "replies" were failure to deliver  
notices, some were "you need to be on my approved list to send email",  
some were from business accounts saying their address had changed, etc.

Should I have my .Mac address changed?  Are there other measures that  
can be taken?