Europa-List: strange emails

[Steven Pitt <steven.pitt2@ntlworld.com>]

I have ben receiving strange blank emails with attachments from a site ref: 
'number'@matronics.com,
the 'number' is about 10 to 15 characters long but I do not
know if it is the same each time..
I have not opened any of the attachments and ditch the messages immediately.
Is anyone else receiving such, should I be worried, am I in danger or 
endangering
anyone else?
Steve Pitt #403