We get a lot of crap email address signups at http://feefighters.com We do a little bit of filtering to check that the email address is legit, but let you get by anyway (with an additional click) if it isn't... we have a 1-click unsubscribe but this is making me rethink whether we should let fake email addresses through at all.

We recently got this email from Fake.com

Hello

We own the domain fake.com, and from time to time some moron out there in the world-wide-waste-of-time uses our name to try and sign up for something...

Not just that, there’s also a whole slew of dozy IT people who test links by doing the same thing without doing a whois check first!

Whichever it is, could you please delete this account?

Thanks [redacted]

fake landscapes - the artificial plant company http://www.fake.com*

Somehow I don't think this has the desired effect... that's a tough domain name for this sort of thing, feel sorry for the guy but not much we can do.