# Per-user system-ish filter need_ipv4 # exim -odi userx Subject: fail this This is a message to be failed. **** exim -odi userx Subject: freeze this (1) This is a message to be frozen. **** exim -odi userx Subject: reply to this This is a message to be replied to. **** exim -bpa **** exim -q **** exim -qff **** exim -odi userx Subject: freeze this (2) This is a second message to be frozen. **** exim -qqRff userx **** exim -odi userz Subject: freeze this (3) This is a third message to be frozen. **** exim -bp **** server PORT_S 220 ESMTP EHLO 250-OK 250 HELP MAIL FROM: 250 Sender OK RCPT TO: 250 Recipient OK DATA 350 Send message . 250 OK QUIT 250 OK **** exim -qqRff userz ****