Linux/Mailserver/Postfix Satellite
< Linux | Mailserver
Installation
- install postfix
apt-get install postfix
- postfix configuration (automatic during installation or "dpkg-reconfigure postfix")
- "Satellite System"
- "domain.de"
- "smtp.domain.de"
Configuration
- /etc/mailname
localhostname.localdomain
- /etc/postfix/main.cf
smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
readme_directory = no
# TLS parameters
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.
myhostname = localhostname.localdomain
mydomain = localdomain
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
relayhost = smtp.domain.de
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = loopback-only
inet_protocols = all
recipient_canonical_maps = hash:/etc/postfix/canonical_recipients
sender_canonical_maps = hash:/etc/postfix/canonical_senders
smtp_tls_note_starttls_offer = yes
smtp_tls_security_level = encrypt
smtp_tls_mandatory_ciphers = high
smtp_sasl_auth_enable = yes
smtp_sasl_security_options = noanonymous noplaintext
smtp_sasl_tls_security_options = noanonymous noplaintext
smtp_sasl_password_maps = hash:/etc/postfix/sasl_password
- /etc/postfix/canonical_recipients
root server@domain.de postmaster server@domain.de webmaster server@domain.de user user@domain.de
- /etc/postfix/canonical_senders
root hostname@domain.de postmaster hostname@domain.de webmaster hostname@domain.de user hostname@domain.de
- /etc/postfix/sasl_password
touch /etc/postfix/sasl_password echo "smtp.domain.de username:password" > sasl_password chmod 600 sasl_password
Restart
- reload maps
postmap /etc/postfix/canonical_recipients postmap /etc/postfix/canonical_senders postmap hash:/etc/postfix/sasl_password
- restart address mapping
/etc/init.d/postfix restart