title: can we restore mailbox/emails from Exchange 2013 .edb/on-prem servers, after mailbox migrated to O365
body: <p>We are in critical situation and need to restore a mailbox/emails of a migrated mailbox to Exchange online, which was then deleted more than 3months ago.</p>
  <p>We are in hybrid environment where this mailbox was migrated from on-prem Exchange 2013 server four months ago, since it was deleted months ago from Exchange online and there is no way we can recover it.</p>
  <p>Is there a chance we can restore the mailbox/emails from on-onprem server via .edb file which used to be on-prem?<br>
  Does the mailbox gets deleted from on-prem server after migrating to Exchange online?</p>