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--- linux:mail:postfix [2020/10/23 19:39] – created ms
+++ linux:mail:postfix [2023/01/11 20:29] (current) – external edit 127.0.0.1
@@ Line 3: / Line 3: @@
 <code>
 apt-get install postfix bsd-mailx
+# alle default Angaben übernehmen
 optional
 apt-get install mailutils
 </code>
+===== Postfix für Strato einrichten =====
+<code>
+vi /etc/postfix/main.cf
+# See /usr/share/postfix/main.cf.dist for a commented, more complete version
+# Debian specific:  Specifying a file name will cause the first
+# line of that file to be used as the name.  The Debian default
+# is /etc/mailname.
+#myorigin = /etc/mailname
+smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
+biff = no
+# appending .domain is the MUA's job.
+append_dot_mydomain = no
+# Uncomment the next line to generate "delayed mail" warnings
+#delay_warning_time = 4h
+readme_directory = no
+# See http://www.postfix.org/COMPATIBILITY_README.html -- default to 2 on
+# fresh installs.
+compatibility_level = 2
+# TLS parameters
+smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
+smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
+smtpd_use_tls = yes
+smtp_use_tls = yes
+smtp_enforce_tls = yes
+smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
+smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
+#
+smtp_sasl_auth_enable = yes
+smtp_sasl_security_options = noanonymous
+smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
+smtp_tls_wrappermode = yes
+smtp_tls_security_level = encrypt
+# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
+# information on enabling SSL in the smtp client.
+smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated defer_unauth_destination
+myhostname = vm38
+alias_maps = hash:/etc/aliases
+alias_database = hash:/etc/aliases
+mydestination = $myhostname, vm38, localhost.localdomain, , localhost
+relayhost = smtp.strato.de:465
+mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
+mailbox_size_limit = 0
+recipient_delimiter = +
+inet_interfaces = all
+inet_protocols = all
+</code>
+==== User und Passwort konfigureieren ====
+<code>
+vi /etc/postfix/sasl_passwd
+smtp.strato.de musterman@example.de:geheimes_passwort
+</code>
+<code>
+postmap /etc/postfix/sasl_passwd
+</code>
+<code>
+chown root:root /etc/postfix/sasl_passwd /etc/postfix/sasl_passwd.db
+chmod 0600 /etc/postfix/sasl_passwd /etc/postfix/sasl_passwd.db
+</code>
+<code>
+root> systemctl restart postfix.service
+oder
+root> /etc/init.d/postfix restart
+</code>
+==== Mailversand testen ====
+<code>
+echo "Dies ist eine Testmail" | mailx -s "Test" name@domain.de
+</code>
+paralell dazu Log-Datei beobachten
+<code>
+root> tail -f /var/log/mail.log
+</code>