Time is more important than bandwidth but i keep bandwidth in mind as well. The solution you can deploy on the mail-server itself and put a plugin in your mail-client to pull mails.
Initial contact problem: According to mine solution all those mails which are declared as spam are not popped by your mail-client but only their header comes to you and that too into spam-folder. After that there is one component of solution at server side which automatically mails a form to all those which are not in the user's white-list and black-list if some one replied to that form then it moves the mail from spam-folder to some intermediate folder so that user show some importance to those mails and can add those users to his/her white-list or black-list after reading it.
The simple solution to this Spam Control is by combination of three technologies White-List,Black-List and Content-filtering.
The very first thing is you create your own white-list by picking up the email-ids from your addressbook. White-list can be extended to more levels by extending your addressbook with the addressbooks of your friends or enterprise. This is how you creates your white-list which allows all your friends and all friends of your friends can sent you mail.
So all the mail that user recieves will be filtered based on his/her black-list and white-list. The mails from unknown users move to some special folder "spam-folder" from which user can add email-ids to his white-list and to his black-list.
I have solution to this problem for more info mail me...
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Time is more important than bandwidth but i keep bandwidth in mind as well. The solution you can deploy on the mail-server itself and put a plugin in your mail-client to pull mails.
Initial contact problem: According to mine solution all those mails which are declared as spam are not popped by your mail-client but only their header comes to you and that too into spam-folder. After that there is one component of solution at server side which automatically mails a form to all those which are not in the user's white-list and black-list if some one replied to that form then it moves the mail from spam-folder to some intermediate folder so that user show some importance to those mails and can add those users to his/her white-list or black-list after reading it.
Craeating law for spam is absurd.
The simple solution to this Spam Control is by combination of three technologies White-List,Black-List and Content-filtering.
The very first thing is you create your own white-list by picking up the email-ids from your addressbook. White-list can be extended to more levels by extending your addressbook with the addressbooks of your friends or enterprise. This is how you creates your white-list which allows all your friends and all friends of your friends can sent you mail. So all the mail that user recieves will be filtered based on his/her black-list and white-list. The mails from unknown users move to some special folder "spam-folder" from which user can add email-ids to his white-list and to his black-list.
I have solution to this problem for more info mail me...