We are running Exchange Server 2000 utilizing the POP3 connector to retrieve and distribute mail from a global mailbox at our ISP. The ISP recently installed Spamkiller and it deletes potential spam before it reaches our mailbox. They do not provide us with a list of mail being rejected and the sender does not receive a notification. We discovered that a significant amount of mail from one of our critical clients was being rejected. We added the domain to the “whitelist” and are now receiving mail. My concern now is about what other important mail may be being rejected. I understand the need for spam control, but feel it is critical to know what is being rejected.
Is this normal practice among ISPs hosting mail?
