No, that's not what's happening and I'm not intentionally or accidentally deleting the email on the iPhone. What do you think of the idea of switching to POP on the iPhone. The way I use email, I never want to synch emails on my iPhone or iPad with the Mail app on my Mac. I want to delete or move emails on the Mac always.
Let me review the scenario as it is now to make sure we're on the same page (and thanks, Charles, for working with me). It frustrates me to ask for help since I've been a computer professional since 1961 and a programmer since 1976 :)
- An email arrives in my Mac Mail inbox on my Mac, my iPhone and my iPad.
- If I click on the email to open it and see the contents on my iPhone.
- Instantly it vanishes from the inbox on both the Mac and the iPad. Just the act of opening it makes that happen.
That does sound like iMap behavior but I'm sure(?) that on an earlier IOS there was a button to say "leave mail on the server". I can't find that option on the iPhone now.
And I think the only variable between when it worked and now is the upgrade to IOS 18..
Chaz
Thankful for your help