This is a weird one. First off, running High Sierra 10.13.6. I couldn't just transition my old iPhotos to the new Photos, even with iPhoto upgrader.
So, I had to manually drag all my photos from the iPhoto library (Package contents - originals) and also from my external drive where I had the...
When I trash or junk delete a mail-message, it keeps showing in my list of arrived mails - until I close and reopened the mail application.
I appreciate that some people may need the trash folder as a hold folder but I don't!
When I delete a message I don't want it to show up ANYWHERE in Mail ...