In the application web interface window, select the Settings → Personal accounts → Backup section.
If you want user mode to display the section of personal Backup with information about messages placed there, set the View message information toggle switch to Enabled.
If you want user mode to allow deleting messages from personal Backup, set the Delete messages toggle switch to Enabled.
This is available only if the View message information option is enabled.
If you want user mode to allow delivery of safe messages from personal Backup, set the Deliver messages toggle switch to Enabled.
This is available only if the View message information option is enabled.
In the drop-down list below, select the format in which you want messages to be delivered from personal Backup:
In an attachment.
As is.
Some mail systems, for example, Microsoft Exchange Server, may reject repeated delivery of a message with the same SMTP message ID header. To deliver messages in their original form from personal Backup to such systems, you must remove the SMTP message ID header. To do so, move the Remove SMTP message ID toggle switch to the Enabled position.
Available only for the As is message delivery format.
If the message has a DKIM signature, removing the SMTP message ID header may damage it.