è da un po' di giorni, che mi tornano indietro email che io non ho mai inviato dal mio indirizzo di posta...



questo è un esempio...

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

...@....com
This message has been rejected because it has
a potentially executable attachment "readme.cmd"
This form of attachment has been used by
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If you meant to send this file then please
package it up as a zip file and resend it.




che può essere????
?