Server configuration, see https://maddy.email for more information. The default configuration of this module will setup minimal Maddy instance for mail transfer without TLS encryption.
This should not be used in a production environment.
Declarations
Type
null or strings concatenated with "\n"Default
''
# Minimal configuration with TLS disabled, adapted from upstream example
# configuration here https://github.com/foxcpp/maddy/blob/master/maddy.conf
# Do not use this in production!
auth.pass_table local_authdb {
table sql_table {
driver sqlite3
dsn credentials.db
table_name passwords
}
}
storage.imapsql local_mailboxes {
driver sqlite3
dsn imapsql.db
}
table.chain local_rewrites {
optional_step regexp "(.+)\+(.+)@(.+)" "$1@$3"
optional_step static {
entry postmaster postmaster@$(primary_domain)
}
optional_step file /etc/maddy/aliases
}
msgpipeline local_routing {
destination postmaster $(local_domains) {
modify {
replace_rcpt &local_rewrites
}
deliver_to &local_mailboxes
}
default_destination {
reject 550 5.1.1 "User doesn't exist"
}
}
smtp tcp://0.0.0.0:25 {
limits {
all rate 20 1s
all concurrency 10
}
dmarc yes
check {
require_mx_record
dkim
spf
}
source $(local_domains) {
reject 501 5.1.8 "Use Submission for outgoing SMTP"
}
default_source {
destination postmaster $(local_domains) {
deliver_to &local_routing
}
default_destination {
reject 550 5.1.1 "User doesn't exist"
}
}
}
submission tcp://0.0.0.0:587 {
limits {
all rate 50 1s
}
auth &local_authdb
source $(local_domains) {
check {
authorize_sender {
prepare_email &local_rewrites
user_to_email identity
}
}
destination postmaster $(local_domains) {
deliver_to &local_routing
}
default_destination {
modify {
dkim $(primary_domain) $(local_domains) default
}
deliver_to &remote_queue
}
}
default_source {
reject 501 5.1.8 "Non-local sender domain"
}
}
target.remote outbound_delivery {
limits {
destination rate 20 1s
destination concurrency 10
}
mx_auth {
dane
mtasts {
cache fs
fs_dir mtasts_cache/
}
local_policy {
min_tls_level encrypted
min_mx_level none
}
}
}
target.queue remote_queue {
target &outbound_delivery
autogenerated_msg_domain $(primary_domain)
bounce {
destination postmaster $(local_domains) {
deliver_to &local_routing
}
default_destination {
reject 550 5.0.0 "Refusing to send DSNs to non-local addresses"
}
}
}
imap tcp://0.0.0.0:143 {
auth &local_authdb
storage &local_mailboxes
}
''