Yutaka-san, Could you please advise me how to get authentication information for SMTP and POP3 protocols for using it afterwards in CFI? Let me explain the problem: I pass the message for our internal anti-spam system through CFI filter: #!cfi MIME-Filter: /opt/analyzer.pl It works perfectly. The problem is that the colleagues ask for per-user granularity, i.e. to create e-mails profiles for each user's login. Theoretically I can write a bidirectional filter which will not only extract mails but login information. To be honest, I've tried already to write this script but unsuccessfully... So, could you please say me if it's possible to get "login" from auth information and, ideally, pass it as a parameter for CFI? I mean something like the following: #!cfi MIME-Filter: /opt/analyzer.pl %U I'll be very grateful if you advise me how it may be implemented. Thank you in advance, -- Serge