This is the #1 reason emails disappear completely. You might have created a filter that says “Skip Inbox + Delete it” for a certain sender.
Chances are, you’ve accidentally blocked the sender, or a filter is automatically deleting their messages.
Gmail automatically deletes emails that have been in the Spam folder for more than 30 days. If you cannot find an email from a blocked sender, it may have been permanently deleted by the system. how to see blocked emails on gmail
Gmail automatically deletes messages in Spam after 30 days. If the email is older than that, it’s gone forever.
Gmail does have a small, hidden list of manually blocked emails—but only for addresses you’ve explicitly blocked via the “Block user” button. This is the #1 reason emails disappear completely
It is a common misconception that Gmail has a dedicated "Blocked Folder" where all blocked emails go to die. In reality, Gmail handles blocking differently than some other email providers.
Have a missing email that still won’t show up? Leave a comment below with what you’ve tried, and I’ll help troubleshoot. Gmail automatically deletes emails that have been in
If you want to see a list of everyone you have blocked (without searching for emails), you must check your Google Account settings.