I'm using Contact Form 7 to set a contact form incluidng file attachement option. But it doesn't work at all. I fill the form and afte sending it, for the attachemtn file option shows "Fail trying to send file", no more reason explained. I've tried to put [your-file] in the File Attachemnt section and also in the Body message area, and didn't work either. Any idea? Could 2.8 be the problem?