someone using my email address for their facebook account

[http://dummy.us.eu.org/robert (Robert)]

Sue - it seems that you have been sending messages on Facebook to someone
named Christia Berry, thinking that you're sending the messages to me.

I do not have a facebook account and never will.

This person seems to be using my email address for their account and maybe
that's why you've been sending them messages.

Anyway, you should stop sending them messages.  It's not a big deal -- my
spam filter just throws it away -- but it would make it slightly easier
for you to send me real messages through email in the future if I don't
have to scan through this facebook spam.

Thanks.