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--- opensmtpd [2021/02/11 11:10] – created admin
+++ opensmtpd [2023/12/13 19:17] (current) – admin
@@ Line 1: / Line 1: @@
 ====== OpenSMTPD ======
+Installieren mit:
+<code>apt install opensmtpd opensmtpd-filter-senderscore mariadb-client mariadb-server</code>
+Dann die Datei /etc/smtpd.conf anpassen. Meine sieht jetzt so aus:
+<code>
+pki "mail.domain.tld" cert "/etc/letsencrypt/live/mail.domain.tld/fullchain.pem"
+pki "mail.domain.tld" key "/etc/letsencrypt/live/mail.domain.tld/privkey.pem"
+srs key "lassdirwasschöneseinfallenhier"
+# internal aliases to root
+table aliases file:/etc/mail/aliases
+# External Mails in Database vmail
+table domains mysql:/etc/mail/mysql.conf
+table virtuals mysql:/etc/mail/mysql.conf
+table credentials mysql:/etc/mail/mysql.conf
+filter check_rdns phase connect match !rdns \
+    disconnect "550 no rDNS"
+filter senderscore \
+    proc-exec "filter-senderscore -junkBelow 70 -slowFactor 5000"
+filter rspamd proc-exec "filter-rspamd"
+listen on eth0 tls pki mail.domain.tld filter { senderscore, rspamd, check_rdns }
+listen on eth0 port 465 smtps pki mail.domain.tld auth <credentials> filter { rspamd }
+listen on eth0 port 587 tls-require pki mail.domain.tld auth <credentials> filter { rspamd }
+action "local_mail" mbox alias <aliases>
+action "domain_mail" maildir "/var/vmail/%{dest.domain:lowercase}/%{dest.user:lowercase}" virtual <virtuals>
+action "outbound" relay
+action "RECV" lmtp "/var/run/dovecot/lmtp" rcpt-to virtual <virtuals>
+# match from any for domain <domains> action "domain_mail"
+match from any for domain <domains> action "RECV"
+match from local for local action "local_mail"
+match from local for any action "outbound"
+match auth from any for any action "outbound"
+</code>
+Die oben erwähnte /etc/mail/mysql.conf sieht bei mir folgendermasen aus, das muss man dann eben auf sein Datenbankschema anpassen, aber zum dokumentieren der Syntax einmal hier:
+<code>
+host            localhost
+username        vmail
+password        DatenbankPasswort
+database        vmail
+query_alias SELECT destination FROM virtuals WHERE email=?;
+query_credentials SELECT user, password FROM credentials WHERE user=?;
+query_domain SELECT domain FROM domains WHERE domain=?;
+</code>