Irony

I got an email recently - one of the dozens of spam emails I receive daily - that both annoyed and amused me.

The subject header said: "Brian, sick of deleting spam email !? Spam Remedy kills all spam automatically! sjgqxgeyyu." It then went on - in poorly written, idiotic sales doublespeak - to promise to keep my email box free and uncluttered of spam and automatically block "unwanted, dangerous, or offensive" email.

Do you suppose the person that sent it even knows the definition of irony?