Outlook auto-clearing your email trash is usually due to a default retention policy or settings in your account. Here’s what you can check:

1. Retention Policy Settings:

Go to Settings > Mail > Retention Policies (or similar).

Check if a policy is applied to automatically delete items in your trash.


2. Empty Deleted Items on Exit:

For desktop Outlook, go to File > Options > Advanced.

Look for Empty Deleted Items folder when exiting Outlook and uncheck it if enabled.

3. Rules:

Check for any custom rules in Outlook that might automatically clear your trash.

These suggestions refer to Outlook trash but other devices may also be responsible for deleting your trash. Phones using IMAP settings could also be deleting trash across all devices.

Check for setting in your webmail

https://webmail.frogstar.com/cpsess2731344458/3rdparty/roundcube/?_task=settings&_action=preferences