Every couple of days Thunderbird is scrambling my emails. Lets give these emails names. I have the original, and I have the parasite. The original could be from anyone but invariably contains an attachment and is always a useful email, never a newsletter or a forum subscription or anything I can afford to lose. The parasite is always an email with a wordpress database attachment. I've had this plugin running for over a year and only have just started having this problem and the problem occurs after the email is sent anyway. Both the original and the parasite will be in my inbox, right next to each other. The parasite will be untouched but when I view the original it's contents will be gone and replaced by a copy of the parasite. The only helpful thing I could find online was advice to compact the folders weekly which I've just done but does anyone else know what might be going on.