Mail vanishes from inbox

[Nancy R.]

I often keep 5 to 10 emails in my inbox for answering later or for reference. Usually that's no problem. But occasionally if I have many emails in the inbox, the oldest ones vanish. They do not get deleted to trash. They are simply gone. Forever. Lately I have been having a problem with lots of spam, so my inbox has been getting very full. Today I lost about 5 emails I needed. Any ideas why this happens and how to prevent it?

[Gunter Königsmann]

Two questions:

• Is your account set up as pop3 or as IMAP? If you use pop3 if you use two mail clients there are chances that the other client deletes all mails it has downloaded.
• Might it be that the mails don't vanish but that K9 only shows the first 20, 50 or 100 Mails - and these mails are Mail Nr. 21, 51 or 110?
  

[Nancy R.]

I believe its POP3, but I don't know how to check that. At any rate, I don't believe this is caused outside K-9. It only happens when the inbox gets full, maybe 30 emails. But it's certainly under 50. I don't know the exact number, because it happens suddenly and randomly. And infrequently. I can go months without a problem. And when they vanish, the inbox becomes empty. It shows no messages. So it's not a matter of showing only the first ones. There is nothing there anymore.

[Uwe Deutscher]

I sometimes experience this too using IMAP.

Just leave your inbox and go to your account overview or to another folder.

When you go back to your inbox all read email will show up again.

I mentioned this before.

It is definitely a bug!

[Nancy R.]

No, nothing comes back. I have gone to trash, sent, out to account level, and when I come back to the inbox, the missing emails are still missing.