The issue of deleted items reappearing in your Hotmail (Outlook) Trash could be related to several factors. One possibility is that the items are not being permanently deleted but rather moved to a recoverable state. In Microsoft Outlook, when you delete an email, it may first go to the Deleted Items folder and then to the Recoverable Items folder if you empty the Deleted Items folder. If the retention period for these items has not expired, they may reappear in your Trash.
Another factor could be synchronization issues between your email client and the server. If you are using multiple devices to access your email, changes made on one device may not sync correctly with another, leading to deleted items reappearing.
To resolve this, ensure that you are permanently deleting the items and check your retention settings. You can also try clearing your cache or checking for any syncing issues with your email account.
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