This is a very strange issue. I have my mail app set up for an online provider. Sending/receiving is fine, but when I open my email it says my inbox has 9999 messages, 2242 unread. The main issue is that now, for some reason, when I delete emails from my inbox they disappear, then reappear the next time I open email or if it checks for new emails. I had a vendor-provided email but they apparently got tired of handling that and sent it to AOL. It's still my original email address but it's now AOL online. I heard rumors that AOL has outsourced that email to a 3rd party but I'm not sure. At any rate, is there a setting in the Mail app where I can tell it to allow me to delete messages locally? I've never had this issue and I've been using Macs for MANY years. Thanks in advance.