https://www.epo.org/en/node/it-possible-recover-mail-trash-mailbox

Is it possible to recover mail from trash in the Mailbox?

The administrator can choose to set the trash to be emptied once a day, once a week, once every four weeks or once every 12 weeks. Thus, depending on the setting chosen, you can recover communications from trash for up to a maximum of 12 weeks.

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