There are a few cases in which the backup may seem to not work correctly. We discuss those cases here.
Restore of an active account on a new account should NOT be done using the latest state available. Suppose that a user by mistake deletes all of his emails or that for any reason (like e.g., a server failure) the emails in an account are lost. The user wants them back and asks the admin. If the admin restores the status of the account to the latest state available, the result is that the new account will contain the latest state available, which is an empty account, since in the latest state the email have already been deleted. Therefore, in order to correctly restore the account, it is necessary to restore it at a point in time which is antecedent the emails were deleted.
When using the POP3/POP3S protocol, if the email client is configured to download email messages and delete them immediately from the server, these messages may not be included in the backup. This does not happen if the Zextras Powerstore component is installed.
When sending an email directly through an SMTP connection (e.g., using a multipurpose device or connecting to the STMP server using
telnet), then that email will not be part of the backup.
When sending email using an IMAP/SMTP client, the IMAP client must be configured to store the send email in a remote folder (using the IMAP STORE command) after the send operation, otherwise the email may not be included in the backup.
The last two cases do not apply when using a browser to connect to the
Mailbox. In this case is it the Mailbox that contacts the SMTP server to send
the email and automatically passes the email to