Answer is Draft or Outbox
Deleted messages are stored for a time in the Trash folder until that folder is cleared ("emptied"). Messages deleted from the Trash folder can't be recovered.
it is a folder where sent messages are kept
This folder is called the Inbox, and contains both read and unread messages, which can be sorted to various sub-folders.
To resolve the issue of the full Trash folder, start by deleting any old or unwanted emails. After clearing out the unnecessary messages, compact the Trash folder to free up space. This process will help ensure that you can store more messages without running into capacity issues. Regular maintenance of your Trash folder will help prevent this problem in the future.
In Outlook, temporary files are typically stored in a hidden folder on your computer. The default location for these files is usually found at C:\Users\<YourUsername>\AppData\Local\Microsoft\Windows\INetCache\Content.Outlook\. This folder holds temporary copies of attachments and other items when you open them from email messages.
The folder that contains messages from recipients is typically called the "Inbox." This is where incoming emails are stored, allowing users to view and manage messages they have received. Depending on the email client or service, there may also be subfolders or categories within the Inbox to help organize messages further.
drafts
You can always stop un wanted inbox messages on the gmail. The inbox messages can be unsubscribed. After that the mails will always go to the spam folder.
It is usually called the "bin".
drafts
Archived messages cannot be there in any folder. You can see the archived mails in All Mails. They are for cleaning the mails off the inbox.
Messages often end up in the junk folder due to spam filters that analyze various factors, including the sender's reputation, the email content, and user behavior. If an email contains certain keywords, excessive links, or is sent from a suspicious domain, it may be flagged as potential spam. Additionally, if a recipient frequently marks similar messages as junk, the filter learns to redirect future messages from that sender to the junk folder. These measures aim to protect users from unwanted or harmful emails.