Configuración Servidor Correo Postfix DOVECOT (Virtual Domain, Aliases, Users)

Instalacion_Postfix_Dovecot.sh

## INSTALACION POSTFIX CON DOVECOT
## POSTFIX - MULTIPLES DOMINIOS & USUARIOS
## if ! type -path "dig" > /dev/null 2>&1; then yum install bind-utils -y; fi
# Grupo de usuarios virtuales
groupadd vmail -g 2222

# Agregamos el usuario (vmail) con el ID 2222 al sistema
useradd vmail -r -g 2222 -u 2222 -d /var/vmail -m -c "mail user"

## INSTALL POSTFIX
yum install postfix cronie

## EDITAMOS LA CONFIGURACION DE POSTFIX 
## vim /etc/postfix/main.cf

## VALIDE QUE LAS SIGUIENTE VARIABLES SE ENCUENTREN CONFIGURADAS CON LOS 
## MISMOS VALORES 
queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/libexec/postfix
data_directory = /var/lib/postfix
mail_owner = postfix
unknown_local_recipient_reject_code = 550
alias_maps = hash:/etc/postfix/aliases
alias_database = $alias_maps

inet_interfaces = all
inet_protocols = ipv4
mydestination = $myhostname, localhost.$mydomain, localhost

debug_peer_level = 2
debugger_command =
         PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
         ddd $daemon_directory/$process_name $process_id & sleep 5

sendmail_path = /usr/sbin/sendmail.postfix
newaliases_path = /usr/bin/newaliases.postfix
mailq_path = /usr/bin/mailq.postfix
setgid_group = postdrop
html_directory = no
manpage_directory = /usr/share/man
sample_directory = /usr/share/doc/postfix-2.6.6/samples
readme_directory = /usr/share/doc/postfix-2.6.6/README_FILES

relay_domains = *
virtual_alias_maps=hash:/etc/postfix/vmail_aliases
virtual_mailbox_domains=hash:/etc/postfix/vmail_domains
virtual_mailbox_maps=hash:/etc/postfix/vmail_mailbox

virtual_mailbox_base = /var/vmail
virtual_minimum_uid = 2222
virtual_transport = virtual
virtual_uid_maps = static:2222
virtual_gid_maps = static:2222

smtpd_sasl_auth_enable = yes
smtpd_sasl_type = dovecot
smtpd_sasl_path = /var/run/dovecot/auth-client
smtpd_sasl_security_options = noanonymous
smtpd_sasl_tls_security_options = $smtpd_sasl_security_options
smtpd_sasl_local_domain = $mydomain
broken_sasl_auth_clients = yes

smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination

mkdir /etc/postfix/vmail_domains
## vim /etc/postfix/vmail_domains

echo "mydomain.com            OK" >> /etc/postfix/vmail_domains
echo "my-otherdomain.com      OK" >>  /etc/postfix/vmail_domains

mkdir /etc/postfix/vmail_mailbox
## vim /etc/postfix/vmail_mailbox

echo "info@mydomain.com           mydomain.com/info/" >>  /etc/postfix/vmail_mailbox
echo "info@my-otherdomain.com     my-otherdomain.com/info/" >> /etc/postfix/vmail_mailbox

mkdir /etc/postfix/vmail_aliases

## vim /etc/postfix/vmail_aliases

echo "info@mydomain.com           info@mydomain.com" >> /etc/postfix/vmail_aliases
echo "info@my-otherdomain.com     foo@bar.tld" >> /etc/postfix/vmail_aliases

postmap /etc/postfix/vmail_domains
postmap /etc/postfix/vmail_mailbox
postmap /etc/postfix/vmail_aliases

touch /etc/postfix/aliases
## vim +/submission /etc/postfix/master.cf
## Agregar la siguiente linea 
## submission inet n       -       n       -       -       smtpd
## <-ENDLINE->

## AHORA INSTALAMOS DOVECOT (POP3, IMAP)
yum install dovecot

## cp /etc/dovecot/dovecot.conf{,.orig}
## vim /etc/dovecot/dovecot.conf

listen = *
ssl = no
protocols = imap lmtp
disable_plaintext_auth = no
auth_mechanisms = plain login
mail_access_groups = vmail
default_login_user = vmail
first_valid_uid = 2222
first_valid_gid = 2222
#mail_location = maildir:~/Maildir
mail_location = maildir:/var/vmail/%d/%n

passdb {
    driver = passwd-file
    args = scheme=SHA1 /etc/dovecot/passwd
}
userdb {
    driver = static
    args = uid=2222 gid=2222 home=/var/vmail/%d/%n allow_all_users=yes
}
service auth {
    unix_listener auth-client {
        group = postfix
        mode = 0660
        user = postfix
    }
    user = root
}
service imap-login {
  process_min_avail = 1
  user = vmail
}

touch /etc/dovecot/passwd
doveadm pw -s sha1 | cut -d '}' -f2

## vim /etc/dovecot/passwd
## info@mydomain.com:DOzcsKI8HY0bg8LAuz0DPKwS3WA=
## info@mydomain.com:<<- PEGAR AQUI STRING GENERADO POR doveadm- >>

chown root: /etc/dovecot/passwd
chmod 600 /etc/dovecot/passwd

chkconfig postfix on
chkconfig dovecot on

service postfix restart
service dovecot restart

# you can also use swaks to test your smtp server, for example:
# swaks --to support@mydomain.com --from email@address.net

## PARA CREAR UNA CUENTA NUEVA ########################
## vim /etc/postfix/vmail_mailbox
## ...
## test@dominio.com           dominio.com/test/
#######################################################
## postmap /etc/postfix/vmail_mailbox
## postmap /etc/postfix/vmail_aliases

## reiniciamos el servicio
## service postfix restart

### GENERAR PASSWORD ################################
## doveadm pw -s sha1 | cut -d '}' -f2
## Incorporamos esa password al directorio de dovecot ##
## vim /etc/dovecot/passwd
## ...
## support@mydomain.com:DOzcsKI8HY0bg8LAuz0DPKwS3WA=