Postfix and NEWSMASTER

[Chris Martin]

Recently I replaced sendmail on this machine with postfix and now mail
to bare usernames (like usenet) is sent to username at myISP.

According to the Postfix mailing list, the cure is to add @localhost
(in my case) to all bare usernames.

I tried to do this with "--with-newsmaster=usenet at localhost" but it
appears to chop the value off at the "@" -- innshellvars has 

  NEWSMASTER=usenet

even after a 

  make distclean

and

  ./configure ... --with-newsmaster=usenet at localhost ...

(confirmed by the line in config.status)