Strange email

I am receiving several emails a day as follows:

From
Status: R
X-Status: N
X-KMail-EncryptionState:
X-KMail-SignatureState:

That is the entire message saved in my KMail inbox (mbox config).
Can anyone tell me what they are, and how they find me?

Doug.

--
Registered Linux User No. 277548.
They say lightning never strikes twice in the same place. My typing is
about as accurate. Apologies for any typos that slip in. - Doug.

Doug, look, somewhere they've got your email-address and now
someone trys to send you mails. I think the mail header is
broken therefore you get Status: R ...
....or, although Murphy told you not to do that,
you have touched your running mail-system :-)
Cheers,
Monzai

Doug Laidlaw wrote:
> I am receiving several emails a day as follows:
>
> From
> Status: R
> X-Status: N
> X-KMail-EncryptionState:
> X-KMail-SignatureState:
>
> That is the entire message saved in my KMail inbox (mbox config).
> Can anyone tell me what they are, and how they find me?
>
> Doug.
>