When I have actioned emails I will move them to my deleted folder simply for reference before reviewing at a later date and making the decision to permanently delete.
Up until recently I had emails going back to 2017. My device is set up to never automatically empty the folder.
I now find that emails pre March 5th 2024 have gone.
I have contacted BT who have simply said I should not have put emails in the deleted folder. However, from my point of view they were safe as I administer my own account. If it is BT's policy to remove after so long then they should be advising the customer.
They have not explained how or why this happened and simply advised me on my filing arrangements !
Has anyone else had this problem ? I would urge others to check your folders.