Authentic networks, blocked networks and Minimum Mail Size to Bypass POP3 Virus / Spam Filtering (KBytes). What do each of these options effect.

Authentic Networks - This option is for networks that you do not want to perform POP spam filtering. When the Routefinder detects POP3 email coming from authentic networks, it will not perform spam filtering.

Blocked Networks - This option is for networks that you do want to receive email. If any POP3 email comes from the blocked networks, the mail will be flagged as SPAM.

Minimum size to bypass POP3 virus / Spam filtering - This option is set so it will not perform spam filtering when the email contains large attachments.