Why are older inbox messages deleting for no reason?
Older emails in my inbox periodically delete automatically without my deleting them to trash. They disappear from my inbox and are not in my trash. I find they are gone and I have found no way to recover them.
การตอบกลับทั้งหมด (6)
is your account IMAP?
Yes, my account is IMAP.
How old is "older"? Who is the email provider for this account? Do they have a clear statement about their retention policy?
Periodically groups of emails that are several months old disappear.
Comporium, our local telecommunications company, has been our internet provider for 10+ years.. They do not delete emails from their server until the email user does so. I know they are not the problem.
You leave messages in the Inbox? Try moving them somewhere else. If the deletions stop then we know it is your server doing it, or some unexpected interaction between it and Thunderbird.
I file my messages, incoming and outgoing, according to topic, context or correspondents. I aim to keep my Inbox, Sent, Trash and Junk folders empty. I don't get any random deletions.