Determining spam based on primary and secondary email addresses of a user

A processor readable storage medium that includes data and instructions, wherein the execution of the instructions on a computing device by enabling actions, comprising:

• receiving a plurality of messages;
• determining a count of messages from a same message sender address for which the messages are sent to at least one recipient's primary message addresses for which a whitelist is unemployed;
• determining a count of messages from the same message sender address for which the message is rejected based on a white list for at least one recipient's primary message address;
• determining a count of messages from the same message sender address for which the message is rejected based on being blocked from delivery to at least one recipient's secondary message address;
• comparing the determined counts of messages or combinations of determined counts of messages against one or more threshold values;
• and
• if one or more of the selected threshold values is exceeded, marking the message sender address as a spammer such that a display of at least one message from the marked message sender address is marked as spam at a client computer device.

A system for enabling a communications over a network, comprising:

• a message server component residing in a network device that is configured to receive and send messages to a client device over the network;
• and
• a spam manager component that is configured to reside on the network device or another network device, and to perform actions, including:
• receiving a plurality of messages from the message server;
• determining a count of messages from a same message sender address for which the messages are sent to at least one recipient's primary message addresses for which a whitelist is unemployed;
• determining a count of messages from the same message sender address for which the message is rejected based on a white list for at least one recipient's primary message address;
• determining a count of messages from the same message sender address for which the message is rejected based on being blocked from delivery to at least one recipient's secondary message address;
• comparing the determined counts of messages or combinations of determined counts of messages against one or more threshold values;
• and
• if one or more of the selected threshold values is exceeded, marking the message sender address as a spammer such that a display of at least one message from the marked message sender address is marked as spam at a client computer device.