# 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 $mail_name (Ubuntu)
biff = no
# appending .domain is the MUA's job.
append_dot_mydomain = no
# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h
readme_directory = no
# TLS parameters
smtpd_tls_cert_file = /etc/letsencrypt/live/mail.mydomain.com/fullchain.pem
smtpd_tls_key_file = /etc/letsencrypt/live/mail.mydomain.com/privkey.pem
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtp_sasl_security_options = noanonymous
myhostname = mail.mydomain.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = mydomain.com, mail.mydomain.com, localhost.mydomain.com, localhost
relayhost = 192.168.3.141:26
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 192.168.3.0/24 192.168.3.0/24
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = all
home_mailbox = Maildir/
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_local_domain =
smtpd_sasl_security_options = noanonymous
broken_sasl_auth_clients = yes
smtpd_sasl_auth_enable = yes
smtp_destination_concurrency_limit = 2
smtpd_client_connection_count_limit = 10
smtpd_client_connection_rate_limit = 30
disable_vrfy_command = yes
smtpd_restriction_classes = local_only, insiders_only
insiders_only = check_sender_access hash:/etc/postfix/insiders, reject
local_only = check_recipient_access hash:/etc/postfix/local_domains, reject
smtpd_recipient_restrictions = check_sender_access hash:/etc/postfix/restricted_senders,check_sender_access hash:/etc/postfix/sender_access,check_recipient_access hash:/etc/postfix/protected_destinations, permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination
smtp_tls_security_level = may
smtpd_tls_security_level = may
smtp_tls_note_starttls_offer = yes
smtpd_tls_loglevel = 1
smtpd_tls_received_header = yes
sender_bcc_maps = hash:/etc/postfix/sender_bcc
recipient_bcc_maps = hash:/etc/postfix/recipient_bcc
#virtual_alias_maps = hash:/etc/postfix/vmaps
milter_default_action = accept
milter_protocol = 2
smtpd_milters = inet:localhost:8891
non_smtpd_milters = inet:localhost:8891
smtp_mime_header_checks = regexp:/etc/postfix/smtp_mime_header_checks
#mime_header_checks = regexp:/etc/postfix/mime_header_checks
autoresponder_destination_recipient_limit = 1
maximal_queue_lifetime = 1d
message_size_limit = 102400000