Why virus notificiation message is not always displayed when the message is viewed with POP3 mail client?
This applies to F-Secure Anti-Virus for Microsoft Exchange 6.3x on all the supported platforms when e-mails are read with POP3 (Eudora, Netscape Messenger etc.) mail clients. Because of Exchange database synchronization issues, it is not always possible to display the notification text if the particular e-mail has been sent with SMTP to the Exchange server and it is read with a POP3 mail client. There isn’t a workaround to this problem. However, the problem does not affect the product ability to scan messages, it affects only to the notification message displayed to the user.