Thank you very much for your reply.
I do not use the smart folder, I use the inbox. After I long press the footer "all messages loaded", 3 additional days' of emails are loaded but certainly not all of the "missing" emails, some of which are weeks old, some of which are unopened and not deleted from the server. If I close Aqua Mail, then reopen it, the 3 additional days of emails do not appear in my inbox. I must go through the long press process again to get them back into my inbox.
I used an old Windows laptop yesterday, fired it up and opened Outlook on it. It loaded all of the undeleted emails that currently reside on Outlook per my "active" Windows desktop computer plus all emails, including those I've deleted, for approximately the past 3 months. They all appeared in Outlook's inbox. So I do not believe the issue I'm having with Aqua Mail is related to the server of my internet provider.
I ran the test and sent you the file.
Thanks for whatever help you can give me. I would like to rely on Aqua Mail for my daily email needs but find I can't do that presently since my emails just drop out of my inbox.