CentOS 5
Sponsored Link

Run with Clamav
2015/01/19
[1] Configure SMTP Server in order to scan emails to protect from virus or spams. Install clamav first.
[root@mail ~]#
yum --enablerepo=epel -y install clamd amavisd-new
 
# install from EPEL
[root@mail ~]#
vi /etc/amavisd.conf
# line 20: specify domain name

$mydomain
= '
srv.world
';
# line 113: uncomment and specify FQDN

$myhostname
= '
mail.srv.world
';
# line 115: uncomment

$notify_method
= 'smtp:[127.0.0.1]:10025';

$forward_method
= 'smtp:[127.0.0.1]:10025';
# line 322: change like follows

['ClamAV-clamd',
  \&ask_daemon, ["CONTSCAN {}\n", "
/var/run/clamav/clamd.sock
"],
  qr/\bOK$/m, qr/\bFOUND$/m,
  qr/^.*?: (?!Infected Archive)(.*) FOUND$/m ],
[root@mail ~]#
vi /etc/postfix/main.cf
# add at the bottom

content_filter=smtp-amavis:[127.0.0.1]:10024
[root@mail ~]#
vi /etc/postfix/master.cf
# add at the bottom

smtp-amavis unix -       -       n      -       2       smtp
      -o smtp_data_done_timeout=1200
      -o smtp_send_xforward_command=yes
      -o disable_dns_lookups=yes
127.0.0.1:10025 inet n   -       n       -      -       smtpd
      -o content_filter=
      -o local_recipient_maps=
      -o relay_recipient_maps=
      -o smtpd_restriction_classes=
      -o smtpd_client_restrictions=
      -o smtpd_helo_restrictions=
      -o smtpd_sender_restrictions=
      -o smtpd_recipient_restrictions=permit_mynetworks,reject
      -o mynetworks=127.0.0.0/8
      -o strict_rfc821_envelopes=yes
      -o smtpd_error_sleep_time=0
      -o smtpd_soft_error_limit=1001
      -o smtpd_hard_error_limit=1000

[root@mail ~]#
/etc/rc.d/init.d/clamd start

Starting Clam AntiVirus Daemon: Bytecode: Security mode set to "TrustSigned".
[ OK ]
[root@mail ~]#
/etc/rc.d/init.d/amavisd start

Starting Mail Virus Scanner (amavisd):
[ OK ]

[root@mail ~]#
/etc/rc.d/init.d/spamassassin start

Starting spamd:
[ OK ]

[root@mail ~]#
/etc/rc.d/init.d/postfix restart

Shutting down postfix:
[ OK ]

Starting postfix:
[ OK ]

[root@mail ~]#
chkconfig amavisd on

[root@mail ~]#
chkconfig spamassassin on

[root@mail ~]#
chkconfig clamd on

  These lines below are added in header section of emails after this configuration.
 
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