Why are acknowledgments of spam reports mistakenly marked as spam by DCC?
There is probably no mistake. DCC detect bulk mail and not only unsolicited bulk mail. Whether a bulk message is spam depends on whether you solicited or asked for it. Some INTERNET service providers have sent literally millions of acknowledgments of spam reports, which makes them bulk mail. Bulk mail you want to receive should be whitelisted in your master or per-user whiteclnt file.
There is probably no mistake. DCC detect bulk mail and not only unsolicited bulk mail. Whether a bulk message is spam depends on whether you solicited or asked for it. Some INTERNET service providers have sent literally millions of acknowledgments of spam reports, which makes them bulk mail. Bulk mail you want to receive should be whitelisted in your master whiteclnt file or a per-user whiteclnt file.