Initial AnonAddy Cloudron package

postfix-main.cf

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+# Basic configuration
+compatibility_level = 2
+smtpd_banner = $myhostname ESMTP
+biff = no
+append_dot_mydomain = no
+readme_directory = no
+
+# TLS parameters
+smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
+smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
+smtpd_use_tls=yes
+smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
+smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
+smtpd_tls_security_level = may
+smtp_tls_security_level = may
+smtpd_tls_protocols = !SSLv2, !SSLv3, !TLSv1, !TLSv1.1
+smtp_tls_protocols = !SSLv2, !SSLv3, !TLSv1, !TLSv1.1
+smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3, !TLSv1, !TLSv1.1
+smtp_tls_mandatory_protocols = !SSLv2, !SSLv3, !TLSv1, !TLSv1.1
+
+# Network and domain settings
+myhostname = CLOUDRON_APP_DOMAIN
+myorigin = CLOUDRON_MAIL_DOMAIN
+mydestination = CLOUDRON_APP_DOMAIN, localhost
+relayhost =
+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
+
+# Virtual alias domains
+virtual_alias_domains = CLOUDRON_APP_DOMAIN
+virtual_alias_maps = tcp:127.0.0.1:11334
+
+# Queue and message settings
+message_size_limit = 26214400
+mailbox_size_limit = 0
+maximal_queue_lifetime = 1d
+bounce_queue_lifetime = 1d
+
+# Milter configuration for Rspamd
+smtpd_milters = inet:127.0.0.1:11332
+non_smtpd_milters = inet:127.0.0.1:11332
+milter_protocol = 6
+milter_mail_macros = i {mail_addr} {client_addr} {client_name} {auth_authen}
+milter_default_action = accept
+
+# SMTP restrictions
+smtpd_recipient_restrictions =
+    permit_mynetworks,
+    reject_unauth_destination,
+    reject_non_fqdn_recipient,
+    reject_unknown_recipient_domain
+
+smtpd_helo_restrictions =
+    permit_mynetworks,
+    reject_invalid_helo_hostname,
+    reject_non_fqdn_helo_hostname
+
+smtpd_sender_restrictions =
+    permit_mynetworks,
+    reject_non_fqdn_sender,
+    reject_unknown_sender_domain
+
+# Logging
+maillog_file = /dev/stdout