Since I installed OS X 10.10.4 just about 99% of my mail appears in the junk mailbox whether it is or is not junk. I have reset all the junk mail preferences on all my Macs (MacBook, MacBook Retina and iMac), insured that iCloud is set up properly, etc. All to no avail. The same situation exists on my iOS devices as well. Any assistance/ideas will be most welcome.