[exim] Sporadic unroutable address

Hi guys,

i have sporadic unroutable address problem, like this:

2005-05-04 15:24:58 H=(khc-web.co.jp) [211.247.117.96] sender verify fail
for <ignominies@???>: Unrouteable address
2005-05-04 15:24:58 H=(khc-web.co.jp) [211.247.117.96] F=<ignominies@???>
rejected RCPT <black.hawk@???>: Sender verify failed

I have similar problem in outbound email.
I\'ve tried also to install a caching dns but it doesn\'t change.

Any ideas?

Thanks

Riccardo
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