lost email Mojave
Hi - I fairly recently discovered that my in coming mail - apple mail inbox on a 2012 Mac Mini running Mojave 10.14.3 - just disappears after a week. I have set no rules. It isn't in trash, there aren't any other mailboxes. Any idea what's going on, and how I can rectify this? It doesn't happen on my MacBook...
Mac mini, OS X 10.11