https://support.archiver.gfi.com/hc/en-us/articles/360015215999-Configuring-Rule-to-Delete-Read-Receipts-for-Emails-Sent-by-Journaling-Mailbox-in-Office-365
https://support.archiver.gfi.com/hc/en-us/articles/360015215999-Configuring-Rule-to-Delete-Read-Receipts-for-Emails-Sent-by-Journaling-Mailbox-in-Office-365