Spambot becomes self aware but every attempt to contact gets filtered

About 3-6 years ago I read a short story (online, I think) formatted as a series of emails sent by a spambot that had become self aware and was trying to make contact but, due to its origins, was writing in such a spam-like style (references to viagra etc) that every attempt was filtered by email servers. I thought it was one of Nature’s Futures short stories but I went through the archive and couldn’t see it. Does this ring any bells for anyone?

Oh, it’s not the story “Staff meeting, as seen by the spam filter.”