In order to support required IMAP4 features and desired POP3 features, the legacy mailbox IMAP and POP servers may create a special placeholder message as the first message in the mailbox. By default, the text of this placeholder message is:
This message contains information needed by the POP and IMAP servers to operate correctly. Please ignore this message.If you wish to customize the text of this placeholder message, you may create a file
/pmdf/table/ignore-msg.txt containing your
desired, site-customized text; the text of the file will be used in
place of the default text.