smtpd_banner = $myhostname ESMTP
biff = no
append_dot_mydomain = no
readme_directory = no
compatibility_level = 2

# TLS parameters
smtp_tls_cert_file = /etc/letsencrypt/live/quietlife.nl/fullchain.pem
smtp_tls_key_file = /etc/letsencrypt/live/quietlife.nl/privkey.pem
smtp_tls_security_level = may
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache

smtpd_tls_auth_only = yes
smtpd_tls_cert_file = /etc/letsencrypt/live/quietlife.nl/fullchain.pem
smtpd_tls_key_file = /etc/letsencrypt/live/quietlife.nl/privkey.pem
smtpd_tls_security_level = may
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtpd_tls_received_header = yes

# Use strong ciphers
smtpd_tls_ciphers = high
smtpd_tls_mandatory_ciphers = high
smtpd_tls_protocols = TLSv1.2, !TLSv1.1, !TLSv1, !SSLv3, !SSLv2
smtpd_tls_mandatory_protocols = TLSv1.2, !TLSv1.1, !TLSv1, !SSLv3, !SSLv2
smtpd_tls_exclude_ciphers = MD5, DES, ADH, RC4, PSD, SRP, 3DES, eNULL, aNULL
smtpd_tls_mandatory_exclude_ciphers = MD5, DES, ADH, RC4, PSD, SRP, 3DES, eNULL, aNULL
smtpd_tls_eecdh_grade = ultra

tls_eecdh_ultra_curve = secp384r1
tls_high_cipherlist = AES384+EECDH:AES384+EDH:AES256+EECDH:AES256+EDH
tls_preempt_cipherlist = yes
tls_ssl_options = NO_RENEGOTIATION

# Enable SMTP for authenticated users and hand off authentication to Dovecot
smtpd_sasl_type = dovecot
smtpd_sasl_path = private/auth
smtpd_sasl_auth_enable = yes
smtpd_recipient_restrictions =
        permit_sasl_authenticated,
        permit_mynetworks,
        reject_unauth_destination

# Network and host parameters
myhostname = vitas.quietlife.nl
myorigin = /etc/mailname
mydestination = localhost
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
inet_interfaces = all
inet_protocols = all

# Mail queue parameters
maximal_queue_lifetime = 12h
bounce_queue_lifetime = 12h
maximal_backoff_time = 1h
minimal_backoff_time = 5m
queue_run_delay = 5m

# Mailbox parameters
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
relayhost =
mailbox_size_limit = 51200000
message_size_limit = 51200000
recipient_delimiter = +
disable_vrfy_command = yes

# Hand off local delivery to Dovecot's LMTP and tell it where to store mail
virtual_transport = lmtp:unix:private/dovecot-lmtp

# Virtual domains, users and aliases
virtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual-mailbox-domains.cf
virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-mailbox-maps.cf
virtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps.cf, mysql:/etc/postfix/mysql-virtual-email2email.cf

# Strip MUA headers
mime_header_checks = regexp:/etc/postfix/header_checks
header_checks = regexp:/etc/postfix/header_checks