269 lines
7.6 KiB
Plaintext
269 lines
7.6 KiB
Plaintext
# ============ Basic settings ============
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# Debian specific: Specifying a file name will cause the first
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# line of that file to be used as the name. The Debian default
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# is /etc/mailname.
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#myorigin = /etc/mailname
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myorigin = /etc/mailname
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smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
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biff = no
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# appending .domain is the MUA's job.
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append_dot_mydomain = no
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# Uncomment the next line to generate "delayed mail" warnings
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#delay_warning_time = 4h
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readme_directory = /usr/share/doc/postfix
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html_directory = /usr/share/doc/postfix/html
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## - The Internet protocols Postfix will attempt to use when making
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## - or accepting connections.
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## - DEFAULT: ipv4
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inet_protocols = ipv4
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#inet_interfaces = all
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inet_interfaces =
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127.0.0.1
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192.168.0.254
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myhostname = at-254.ak.netz
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mydestination =
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at-254.ak.netz
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localhost
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## - The list of "trusted" SMTP clients that have more
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## - privileges than "strangers"
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## -
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mynetworks =
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127.0.0.0/8
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192.168.0.254/32
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smtp_bind_address = 192.168.0.254
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#smtp_bind_address6 =
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## - The method to generate the default value for the mynetworks parameter.
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## -
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## - mynetworks_style = host" when Postfix should "trust" only the local machine
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## - mynetworks_style = subnet (default value) "when Postfix should "trust" SMTP
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## - clients in the same IP subnetworks as the local machine.
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## - mynetworks_style = class" when Postfix should "trust" SMTP clients in the same
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## - IP class A/B/C networks as the local machine.
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## -
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#mynetworks_style = host
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## - The maximal size of any local(8) individual mailbox or maildir file,
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## - or zero (no limit). In fact, this limits the size of any file that is
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## - written to upon local delivery, including files written by external
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## - commands that are executed by the local(8) delivery agent.
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## -
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mailbox_size_limit = 0
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## - The maximal size in bytes of a message, including envelope information.
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## -
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## - we user 50MB
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## -
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message_size_limit = 52480000
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## - The system-wide recipient address extension delimiter
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## -
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recipient_delimiter = +
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## - The alias databases that are used for local(8) delivery.
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## -
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alias_maps =
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hash:/etc/aliases
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## - The alias databases for local(8) delivery that are updated
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## - with "newaliases" or with "sendmail -bi".
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## -
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alias_database =
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hash:/etc/aliases
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## - The maximal time a message is queued before it is sent back as
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## - undeliverable. Defaults to 5d (5 days)
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## - Specify 0 when mail delivery should be tried only once.
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## -
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maximal_queue_lifetime = 3d
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bounce_queue_lifetime = $maximal_queue_lifetime
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## - delay_warning_time (default: 0h)
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## -
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## - The time after which the sender receives a copy of the message
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## - headers of mail that is still queued. To enable this feature,
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## - specify a non-zero time value (an integral value plus an optional
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## - one-letter suffix that specifies the time unit).
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## - Time units: s (seconds), m (minutes), h (hours), d (days), w (weeks).
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## - The default time unit is h (hours).
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delay_warning_time = 1d
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# ============ Relay parameters ============
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#relayhost =
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# ============ SASL authentication ============
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# Enable SASL authentication
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smtp_sasl_auth_enable = yes
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# Forwarding to the ip-adress of host b.mx.oopen.de
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relayhost = [b.mx.oopen.de]
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# File including login data
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smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
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# Force using a (TLS) security connection
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# obsulete - use smtp_tls_security_level instead
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#smtp_use_tls = yes
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#smtp_tls_enforce_peername = no
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smtp_tls_security_level = encrypt
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# Disallow methods that allow anonymous authentication.
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smtp_sasl_security_options = noanonymous
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# ============ TLS parameters ============
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## - Aktiviert TLS für den Mailempfang
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## -
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## - may:
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## - Opportunistic TLS. Use TLS if this is supported by the remote
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## - SMTP server, otherwise use plaintext
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## -
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## - This overrides the obsolete parameters smtpd_use_tls and
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## - smtpd_enforce_tls. This parameter is ignored with
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## - "smtpd_tls_wrappermode = yes".
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#smtpd_use_tls=yes
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smtp_tls_security_level=encrypt
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## - Aktiviert TLS für den Mailversand
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## -
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## - may:
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## - Opportunistic TLS: announce STARTTLS support to SMTP clients,
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## - but do not require that clients use TLS encryption.
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# smtp_use_tls=yes
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smtpd_tls_security_level=may
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## - 0 Disable logging of TLS activity.
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## - 1 Log TLS handshake and certificate information.
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## - 2 Log levels during TLS negotiation.
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## - 3 Log hexadecimal and ASCII dump of TLS negotiation process.
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## - 4 Also log hexadecimal and ASCII dump of complete transmission after STARTTLS.
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## -
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smtpd_tls_loglevel = 1
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smtp_tls_loglevel = 1
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smtpd_tls_cert_file = /etc/postfix/ssl/mailserver.crt
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smtpd_tls_key_file = /etc/postfix/ssl/mailserver.key
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## - File with DH parameters that the Postfix SMTP server should use with EDH ciphers.
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## -
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## - Dont't forget to create it, e.g with openssl:
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## - openssl gendh -out /etc/postfix/ssl/dh_1024.pem -2 1024
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## -
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smtpd_tls_dh1024_param_file = /etc/postfix/ssl/dh_1024.pem
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## - also possible to use 2048 key with that parameter
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## -
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#smtpd_tls_dh1024_param_file = /etc/postfix/ssl/dh_2048.pem
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## - File with DH parameters that the Postfix SMTP server should use with EDH ciphers.
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## -
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## - Dont't forget to create it, e.g with openssl:
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## - openssl gendh -out /etc/postfix/ssl/dh_512.pem -2 512
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## -
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smtpd_tls_dh512_param_file = /etc/postfix/ssl/dh_512.pem
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## - File containing CA certificates of root CAs trusted to sign either remote SMTP
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## - server certificates or intermediate CA certificates. These are loaded into
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## - memory !! BEFORE !! the smtp(8) client enters the chroot jail.
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## -
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smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
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## - Directory with PEM format certificate authority certificates that the Postfix SMTP
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## - client uses to verify a remote SMTP server certificate. Don't forget to create the
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## - necessary "hash" links with, for example, "
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## - /bin/c_rehash /etc/postfix/certs".
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## -
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## - !! Note !!
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## - To use this option in chroot mode, this directory (or a copy) must be inside
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## - the chroot jail.
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## -
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## - Note that a chrooted daemon resolves all filenames relative to the Postfix
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## - queue directory (/var/spool/postfix)
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## -
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#smtpd_tls_CApath = /etc/postfix/certs
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# Disable SSLv2 SSLv3 - Postfix SMTP server
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#
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# List of TLS protocols that the Postfix SMTP server will exclude or
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# include with opportunistic TLS encryption.
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smtpd_tls_protocols = !SSLv2, !SSLv3
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#
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# The SSL/TLS protocols accepted by the Postfix SMTP server
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# with mandatory TLS encryption.
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smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3
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# Disable SSLv2 SSLv3 - Postfix SMTP client
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#
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# List of TLS protocols that the Postfix SMTP client will exclude or
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# include with opportunistic TLS encryption.
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smtp_tls_protocols = !SSLv2, !SSLv3
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#
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# List of SSL/TLS protocols that the Postfix SMTP client will use
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# with mandatory TLS encryption
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smtp_tls_mandatory_protocols = !SSLv2, !SSLv3
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## - Activate des "Ephemeral Elliptic Curve Diffie-Hellman" (EECDH) key exchange
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## - openssl > 1.0
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## -
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smtpd_tls_eecdh_grade = strong
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# standard list cryptographic algorithm
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tls_preempt_cipherlist = yes
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# Disable ciphers which are less than 256-bit:
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#
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#smtpd_tls_mandatory_ciphers = high
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#
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# opportunistic
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smtpd_tls_ciphers = high
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# Exclude ciphers
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#smtpd_tls_exclude_ciphers =
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# RC4
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# aNULL
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# SEED-SHA
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# EXP
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# MD5
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smtpd_tls_exclude_ciphers =
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aNULL
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eNULL
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EXPORT
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DES
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RC4
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MD5
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PSK
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aECDH
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EDH-DSS-DES-CBC3-SHA
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EDH-RSA-DES-CDC3-SHA
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KRB5-DE5, CBC3-SHA
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smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
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smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
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