Why are my emails disappearing?

Changing "days to sync" in settings brought all my disappeared emails back too

I Don't have "days to sync" option on my IMAP accounts, they are the ones that disappear. Mail from my POP account do not disappear.

That phrase is not on my IMAP mail above "delete account".......????

I am having the same problem on my iPhone5, iPad and iMac. I am using IMAP but I do not see what I am supposed to see to make the correction. Any advice?

I have same problem. How did you solve it?

My emails all disappeared

My iPad is imap. iPhone and iMac are pop accounts. I don't have an option for "days to sync". Email disappears from my imap account in my iPad.

So............?

Your entry is 5 years old but still works !! Thank you ! Thank you !!

This still worked for me in 2017! Thank you mate.

Same problem here. Emails disappear from inbox.

I found them in a folder called “all emails”

I am still looking for s solution, not just a workaround.