main.cf

command_directory = /usr/sbin

daemon_directory = /usr/lib/postfix

data_directory = /var/lib/postfix

mydomain = ***

myhostname = $mydomain
unknown_local_recipient_reject_code = 550
mynetworks = 127.0.0.0/8
smtpd_banner = $myhostname ESMTP ***

debugger_command =
     PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin
     ddd $daemon_directory/$process_name $process_id & sleep 5

sendmail_path = /usr/sbin/sendmail

newaliases_path = /usr/bin/newaliases

mailq_path = /usr/bin/mailq

setgid_group = postdrop

html_directory = no

manpage_directory = /usr/share/man

sample_directory = /usr/share/doc/postfix

readme_directory = /usr/share/doc/postfix
inet_protocols = ipv4

append_dot_mydomain = no
biff = no
smtpd_helo_required = yes
smtpd_recipient_restrictions = permit_mynetworks,
    permit_sasl_authenticated,
    reject_unauth_destination,
    reject_unauth_pipelining,
    reject_non_fqdn_recipient
smtpd_sender_restrictions = permit_mynetworks,
    reject_sender_login_mismatch,
    permit_sasl_authenticated,
    reject_unknown_helo_hostname,
    reject_unknown_recipient_domain,
    reject_unknown_sender_domain
smtpd_client_restrictions = permit_mynetworks,
    permit_sasl_authenticated,
    reject_unknown_client_hostname

smtpd_relay_restrictions =

# Maximum size of Message in bytes (50MB)
message_size_limit = 52428800

## SASL Auth Settings
smtpd_sasl_auth_enable = yes
smtpd_sasl_local_domain = $myhostname
broken_sasl_auth_clients = yes
## Dovecot Settings for deliver, SASL Auth and virtual transport
smtpd_sasl_type = dovecot
#virtual_transport = dovecot
virtual_transport = vmail
dovecot_destination_recipient_limit = 1
smtpd_sasl_path = private/auth

# Virtual delivery settings
virtual_mailbox_base = /
virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual_mailbox_maps.cf
virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual_mailbox_domains.cf
virtual_alias_maps = mysql:/etc/postfix/mysql-virtual_alias_maps.cf
smtpd_sender_login_maps = mysql:/etc/postfix/mysql-virtual_sender_permissions.cf
virtual_uid_maps = static:8
virtual_gid_maps = static:8

# Local delivery settings
local_transport = local
alias_maps = $alias_database

# Default Mailbox size, is set to 0 which means unlimited!
mailbox_size_limit = 0
virtual_mailbox_limit = 0

### TLS settings
smtp_tls_note_starttls_offer = yes
#smtpd_tls_security_level = may
smtpd_tls_cert_file =/etc/letsencrypt/live/***/fullchain.pem
smtpd_tls_key_file = /etc/letsencrypt/live/***/privkey.pem
smtpd_tls_received_header = yes

#opendkim
milter_protocol = 6
milter_default_action = accept
smtpd_milters = inet:localhost:12301
non_smtpd_milters = inet:localhost:12301

# spf policy agent
policyd-spf_time_limit = 3600
check_policy_service = reject_unauth_destination,
    check_policy_service unix:private/policyd-spf

# antivirus
content_filter = scan:127.0.0.1:10025
#receive_override_options = no_address_mappings