F/R/E/E/4/U

출처 : http://www.linux.co.kr/tips/userview.html

작성자 : 조기호

sendmail.cf 에 아래 줄을 추가
---------------------------------------------------------------
HSubject: $>Check_Subject
D{WORMmsg}Access Denied - This message may contain a virus.

SCheck_Subject
Rnew photos from my party! $#error $: 550 ${WORMmsg}
RRe: new photos from my party! $#error $: 550 ${WORMmsg}
RFW: new photos from my party! $#error $: 550 ${WORMmsg}
---------------------------------------------------------------

## $#error $앞에 빈칸은 space 가 아니라 tab 입니다.

추가 하셧다면
killall -HUP sendmail
하시며 됩니다.

테스트 :

[root@mail mail]# /usr/lib/sendmail -bt
ADDRESS TEST MODE (ruleset 3 NOT automatically invoked)
Enter
> Check_Subject new photos from my party!
Check_Subject input: new photos from my party !
Check_Subject returns: $# error $: 550 Access Denied - This message may contain a virus .
>
CTRL+D

관련 링크: http://www.linux.co.kr/tips/userview.html