1 Crie o arquivo $ {CFDIR} /mailer/copymail.m4:
PUSHDIVERT(-1)
ifdef('COPYMAIL_MAILBOX',,
'define('COPYMAIL_MAILBOX', 'postmaster')')dnl
POPDIVERT
#########################################
### COPYMAIL Mailer specification ###
#########################################
VERSIONID('$Id: cpsendmail.html,v 1.2 2002/06/14 18:39:10 freeman Exp $')dnl
LOCAL_CONFIG
D{COPYMAIL}COPYMAIL
C{CP}${COPYMAIL}
LOCAL_RULE_0
# Send all mail to copymail mailer
R$* < @ $+ . $~{CP} . > $#copymail $@ $2 . $3 . ${COPYMAIL} $: $1 @ $2 . $3 . ${COPYMAIL}
# if mail has been processed by copymail mailer, process it usual way...
R$* < @ $* . ${COPYMAIL} > $1 < @ $2 . >
# Send message to original recipient + additional mailbox: COPYMAIL_MAILBOX
Mcopymail, P=/usr/sbin/sendmail, F=fmSDFMu, S=0, R=0,
A=sendmail -N never COPYMAIL_MAILBOX.${COPYMAIL} $u
2 Adicionar ao final sendmail.mc
define('COPYMAIL_MAILBOX','user@domen')
MAILER(copymail)
3 Compile e instale o novo sendmail.mc
4 Reinicie o sendmail
5 Testes