few questions on mailscanner

hey friends,

I am using MailScanner version 4.4 on Fedora Core 3 with Postfix 2.15. I am very much satisfied with the MailScanner now I want to make few changes in MailScanner like

a) Adding Disclaimer for outgoing messages.
b) I want to forward all the messages marked as spam to a user and at the same time don't want to send the copy to the recipient(The forward does send a copy to the recipient).
c) There are few ex employees of our company on whose ids we keep on getting spam , I want to ban or reject the mails send to their mail ids.
d) Is there any way I can reject the mails based on subject header for example if a mail contains subject line as "sex" , I don't want to deliver mails containing such messages.

I know most of these questions are very simple to answer or they might be mentioned in the documentation but as my mail server is on production server I don't want to take any chances .

I am using Spam Assassin with Clamav.

Please let me know if you need any further inputs.


Thanks & Regards