jelletje18
November 19th, 2019, 11:02 PM
About a week ago my mailserver, locally hosted on a raspberry pi, was still working. I could receive and send email via the gmail website. I used pop3(port 995) to receive email and smtp(port 587) to send email. (For privacy reasons i used example.com instead of my actual domain name.)
Two days ago things stopped working as normal. Things i can do right now:
- I can send emails to external addresses using gmail.
- I can receive emails, using pop3, sent to my own emailaddress.
- I can send emails to my own emailaddress from my own server using sendmail. So local emails work.
The problem arises when I try to send an email from an external emailaddress(e.g. hotmail) to my server. Nothing happens at all. It does not show op in any logs(/var/log/mail.log) and some hours later, on the external email, I receive an email that the mail could not be sent.
I can ping my server, my webserver is function fine. I can telnet into my server just fine.
The ports are successfully opened, I even tried to completely open the Pi to the world, this did not change anything. I have a static IP-address as well. In the router I have assigned a static IP to the Pi
I tried openssl s_client -connect mail.example.com:995, this gives no errors.
This is my main.cf:
# 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 (Raspbian)
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/example.com/fullchain.pem
smtpd_tls_key_file=/etc/letsencrypt/live/example.com/privkey.pem
smtpd_use_tls=yes
smtpd_tls_auth_only = yes
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
# Milter configuration
#milter_default_action = accept
#milter_protocol = 6
#smtpd_milters = local:/opendkim/opendkim.sock
#non_smtpd_milters = $smtpd_milters
# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.
myhostname = example.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = localhost
relayhost = [smtp.tweak.nl]:587
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
#Handing off local delivery to Dovecot's LMTP, and telling 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
inet_protocols = ipv4
Here is the result of netstat -tulpn:
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:993 0.0.0.0:* LISTEN 9283/dovecot
tcp 0 0 0.0.0.0:995 0.0.0.0:* LISTEN 9283/dovecot
tcp 0 0 0.0.0.0:5355 0.0.0.0:* LISTEN 10120/systemd-resol
tcp 0 0 0.0.0.0:139 0.0.0.0:* LISTEN 1076/smbd
tcp 0 0 0.0.0.0:587 0.0.0.0:* LISTEN 1052/master
tcp 0 0 0.0.0.0:5900 0.0.0.0:* LISTEN 734/vncserver-x11-c
tcp 0 0 0.0.0.0:8112 0.0.0.0:* LISTEN 1187/python
tcp 0 0 0.0.0.0:465 0.0.0.0:* LISTEN 1052/master
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 812/sshd
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 1052/master
tcp 0 0 0.0.0.0:445 0.0.0.0:* LISTEN 1076/smbd
tcp 0 0 0.0.0.0:58846 0.0.0.0:* LISTEN 1179/python
tcp 0 0 0.0.0.0:61696 0.0.0.0:* LISTEN 1179/python
tcp6 0 0 :::993 :::* LISTEN 9283/dovecot
tcp6 0 0 :::995 :::* LISTEN 9283/dovecot
tcp6 0 0 127.0.0.1:8005 :::* LISTEN 849/java
tcp6 0 0 :::3306 :::* LISTEN 938/mysqld
tcp6 0 0 :::5355 :::* LISTEN 10120/systemd-resol
tcp6 0 0 :::139 :::* LISTEN 1076/smbd
tcp6 0 0 :::5900 :::* LISTEN 734/vncserver-x11-c
tcp6 0 0 :::8080 :::* LISTEN 849/java
tcp6 0 0 :::80 :::* LISTEN 4326/apache2
tcp6 0 0 :::22 :::* LISTEN 812/sshd
tcp6 0 0 :::443 :::* LISTEN 4326/apache2
tcp6 0 0 :::445 :::* LISTEN 1076/smbd
tcp6 0 0 :::61696 :::* LISTEN 1179/python
dovecot -n
# 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.16 (fed8554)
# OS: Linux 4.19.66-v7+ armv7l Debian 9.11 ext4
auth_mechanisms = plain login
log_path = /var/log/dovecot.log
mail_location = maildir:/data/mail/vhosts/%d/%n
namespace {
inbox = yes
location =
mailbox {
special_use = \Drafts
name = Drafts
}
mailbox {
special_use = \Junk
name = Junk
}
mailbox {
special_use = \Sent
name = Sent
}
mailbox {
special_use = \Sent
name = Sent Messages
}
mailbox {
special_use = \Trash
name = Trash
}
prefix =
name = inbox
}
passdb {
args = /etc/dovecot/dovecot-sql.conf.ext
driver = sql
}
postmaster_address = %d
protocols = " imap lmtp pop3"
service replication-notify-fifo {
name = aggregator
}
service anvil-auth-penalty {
name = anvil
}
service auth-worker {
user = vmail
name = auth-worker
}
service {
unix_listener {
group = postfix
mode = 0666
user = postfix
path = /var/spool/postfix/private/auth
}
unix_listener {
mode = 0600
user = vmail
path = auth-userdb
}
user = dovecot
name = auth
}
service config {
name = config
}
service dict-async {
name = dict-async
}
service dict {
name = dict
}
service login/proxy-notify {
name = director
}
service dns-client {
name = dns_client
}
service doveadm-server {
name = doveadm
}
service imap-hibernate {
name = imap-hibernate
}
service {
inet_listener {
port = 0
name = imap
}
name = imap-login
}
service imap-urlauth {
name = imap-urlauth-login
}
service imap-urlauth-worker {
name = imap-urlauth-worker
}
service token-login/imap-urlauth {
name = imap-urlauth
}
service imap-master {
name = imap
}
service indexer-worker {
name = indexer-worker
}
service indexer {
name = indexer
}
service ipc {
name = ipc
}
service {
unix_listener {
group = postfix
mode = 0600
user = postfix
path = /var/spool/postfix/private/dovecot-lmtp
}
name = lmtp
}
service log-errors {
name = log
}
service {
inet_listener {
port = 0
name = pop3
}
name = pop3-login
}
service login/pop3 {
name = pop3
}
service replicator-doveadm {
name = replicator
}
service login/ssl-params {
name = ssl-params
}
service stats-mail {
name = stats
}
ssl = required
ssl_cert = </etc/letsencrypt/live/example.com/fullchain.pem
ssl_key = # hidden, use -P to show it
userdb {
args = uid=vmail gid=vmail home=/data/mail/vhosts/%d/%n
driver = static
}
protocol lmtp {
service replication-notify-fifo {
name = aggregator
}
service anvil-auth-penalty {
name = anvil
}
service auth-worker {
name = auth-worker
}
service auth-client {
name = auth
}
service config {
name = config
}
service dict-async {
name = dict-async
}
service dict {
name = dict
}
service login/proxy-notify {
name = director
}
service dns-client {
name = dns_client
}
service doveadm-server {
name = doveadm
}
service imap-hibernate {
name = imap-hibernate
}
service imap {
name = imap-login
}
service imap-urlauth {
name = imap-urlauth-login
}
service imap-urlauth-worker {
name = imap-urlauth-worker
}
service token-login/imap-urlauth {
name = imap-urlauth
}
service imap-master {
name = imap
}
service indexer-worker {
name = indexer-worker
}
service indexer {
name = indexer
}
service ipc {
name = ipc
}
service lmtp {
name = lmtp
}
service log-errors {
name = log
}
service pop3 {
name = pop3-login
}
service login/pop3 {
name = pop3
}
service replicator-doveadm {
name = replicator
}
service login/ssl-params {
name = ssl-params
}
service stats-mail {
name = stats
}
}
protocol lda {
service replication-notify-fifo {
name = aggregator
}
service anvil-auth-penalty {
name = anvil
}
service auth-worker {
name = auth-worker
}
service auth-client {
name = auth
}
service config {
name = config
}
service dict-async {
name = dict-async
}
service dict {
name = dict
}
service login/proxy-notify {
name = director
}
service dns-client {
name = dns_client
}
service doveadm-server {
name = doveadm
}
service imap-hibernate {
name = imap-hibernate
}
service imap {
name = imap-login
}
service imap-urlauth {
name = imap-urlauth-login
}
service imap-urlauth-worker {
name = imap-urlauth-worker
}
service token-login/imap-urlauth {
name = imap-urlauth
}
service imap-master {
name = imap
}
service indexer-worker {
name = indexer-worker
}
service indexer {
name = indexer
}
service ipc {
name = ipc
}
service lmtp {
name = lmtp
}
service log-errors {
name = log
}
service pop3 {
name = pop3-login
}
service login/pop3 {
name = pop3
}
service replicator-doveadm {
name = replicator
}
service login/ssl-params {
name = ssl-params
}
service stats-mail {
name = stats
}
}
protocol imap {
service replication-notify-fifo {
name = aggregator
}
service anvil-auth-penalty {
name = anvil
}
service auth-worker {
name = auth-worker
}
service auth-client {
name = auth
}
service config {
name = config
}
service dict-async {
name = dict-async
}
service dict {
name = dict
}
service login/proxy-notify {
name = director
}
service dns-client {
name = dns_client
}
service doveadm-server {
name = doveadm
}
service imap-hibernate {
name = imap-hibernate
}
service imap {
name = imap-login
}
service imap-urlauth {
name = imap-urlauth-login
}
service imap-urlauth-worker {
name = imap-urlauth-worker
}
service token-login/imap-urlauth {
name = imap-urlauth
}
service imap-master {
name = imap
}
service indexer-worker {
name = indexer-worker
}
service indexer {
name = indexer
}
service ipc {
name = ipc
}
service lmtp {
name = lmtp
}
service log-errors {
name = log
}
service pop3 {
name = pop3-login
}
service login/pop3 {
name = pop3
}
service replicator-doveadm {
name = replicator
}
service login/ssl-params {
name = ssl-params
}
service stats-mail {
name = stats
}
}
protocol pop3 {
service replication-notify-fifo {
name = aggregator
}
service anvil-auth-penalty {
name = anvil
}
service auth-worker {
name = auth-worker
}
service auth-client {
name = auth
}
service config {
name = config
}
service dict-async {
name = dict-async
}
service dict {
name = dict
}
service login/proxy-notify {
name = director
}
service dns-client {
name = dns_client
}
service doveadm-server {
name = doveadm
}
service imap-hibernate {
name = imap-hibernate
}
service imap {
name = imap-login
}
service imap-urlauth {
name = imap-urlauth-login
}
service imap-urlauth-worker {
name = imap-urlauth-worker
}
service token-login/imap-urlauth {
name = imap-urlauth
}
service imap-master {
name = imap
}
service indexer-worker {
name = indexer-worker
}
service indexer {
name = indexer
}
service ipc {
name = ipc
}
service lmtp {
name = lmtp
}
service log-errors {
name = log
}
service pop3 {
name = pop3-login
}
service login/pop3 {
name = pop3
}
service replicator-doveadm {
name = replicator
}
service login/ssl-params {
name = ssl-params
}
service stats-mail {
name = stats
}
Postfix master.cf:
#
# Postfix master process configuration file. For details on the format
# of the file, see the master(5) manual page (command: "man 5 master" or
# on-line: http://www.postfix.org/master.5.html).
#
# Do not forget to execute "postfix reload" after editing this file.
#
# ================================================== ========================
# service type private unpriv chroot wakeup maxproc command + args
# (yes) (yes) (no) (never) (100)
# ================================================== ========================
smtp inet n - n - - smtpd
#smtp inet n - y - 1 postscreen
#smtpd pass - - y - - smtpd
#dnsblog unix - - y - 0 dnsblog
#tlsproxy unix - - y - 0 tlsproxy
submission inet n - n - - smtpd
# -o syslog_name=postfix/submission
# -o smtpd_tls_security_level=encrypt
# -o smtpd_sasl_auth_enable=yes
# -o smtpd_reject_unlisted_recipient=no
# -o smtpd_client_restrictions=$mua_client_restrictions
# -o smtpd_helo_restrictions=$mua_helo_restrictions
# -o smtpd_sender_restrictions=$mua_sender_restrictions
# -o smtpd_recipient_restrictions=
# -o smtpd_relay_restrictions=permit_sasl_authenticated ,reject
# -o milter_macro_daemon_name=ORIGINATING
smtps inet n - y - - smtpd
# -o syslog_name=postfix/smtps
# -o smtpd_tls_wrappermode=yes
# -o smtpd_sasl_auth_enable=yes
# -o smtpd_reject_unlisted_recipient=no
# -o smtpd_client_restrictions=$mua_client_restrictions
# -o smtpd_helo_restrictions=$mua_helo_restrictions
# -o smtpd_sender_restrictions=$mua_sender_restrictions
# -o smtpd_recipient_restrictions=
# -o smtpd_relay_restrictions=permit_sasl_authenticated ,reject
# -o milter_macro_daemon_name=ORIGINATING
#628 inet n - y - - qmqpd
pickup unix n - y 60 1 pickup
cleanup unix n - y - 0 cleanup
qmgr unix n - n 300 1 qmgr
#qmgr unix n - n 300 1 oqmgr
tlsmgr unix - - y 1000? 1 tlsmgr
rewrite unix - - y - - trivial-rewrite
bounce unix - - y - 0 bounce
defer unix - - y - 0 bounce
trace unix - - y - 0 bounce
verify unix - - y - 1 verify
flush unix n - y 1000? 0 flush
proxymap unix - - n - - proxymap
proxywrite unix - - n - 1 proxymap
smtp unix - - y - - smtp
relay unix - - y - - smtp
# -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
showq unix n - y - - showq
error unix - - y - - error
retry unix - - y - - error
discard unix - - y - - discard
local unix - n n - - local
virtual unix - n n - - virtual
lmtp unix - - y - - lmtp
anvil unix - - y - 1 anvil
scache unix - - y - 1 scache
#
# ================================================== ==================
# Interfaces to non-Postfix software. Be sure to examine the manual
# pages of the non-Postfix software to find out what options it wants.
#
# Many of the following services use the Postfix pipe(8) delivery
# agent. See the pipe(8) man page for information about ${recipient}
# and other message envelope options.
# ================================================== ==================
#
# maildrop. See the Postfix MAILDROP_README file for details.
# Also specify in main.cf: maildrop_destination_recipient_limit=1
#
maildrop unix - n n - - pipe
flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient}
#
# ================================================== ==================
#
# Recent Cyrus versions can use the existing "lmtp" master.cf entry.
#
# Specify in cyrus.conf:
# lmtp cmd="lmtpd -a" listen="localhost:lmtp" proto=tcp4
#
# Specify in main.cf one or more of the following:
# mailbox_transport = lmtp:inet:localhost
# virtual_transport = lmtp:inet:localhost
#
# ================================================== ==================
#
# Cyrus 2.1.5 (Amos Gouaux)
# Also specify in main.cf: cyrus_destination_recipient_limit=1
#
#cyrus unix - n n - - pipe
# user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user}
#
# ================================================== ==================
# Old example of delivery via Cyrus.
#
#old-cyrus unix - n n - - pipe
# flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user}
#
# ================================================== ==================
#
# See the Postfix UUCP_README file for configuration details.
#
uucp unix - n n - - pipe
flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
#
# Other external delivery methods.
#
ifmail unix - n n - - pipe
flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
bsmtp unix - n n - - pipe
flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient
scalemail-backend unix - n n - 2 pipe
flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension}
mailman unix - n n - - pipe
flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
${nexthop} ${user}
I hope this is enough information for you to be able to help me, if it isn't, please let me know and I'll post more.
Two days ago things stopped working as normal. Things i can do right now:
- I can send emails to external addresses using gmail.
- I can receive emails, using pop3, sent to my own emailaddress.
- I can send emails to my own emailaddress from my own server using sendmail. So local emails work.
The problem arises when I try to send an email from an external emailaddress(e.g. hotmail) to my server. Nothing happens at all. It does not show op in any logs(/var/log/mail.log) and some hours later, on the external email, I receive an email that the mail could not be sent.
I can ping my server, my webserver is function fine. I can telnet into my server just fine.
The ports are successfully opened, I even tried to completely open the Pi to the world, this did not change anything. I have a static IP-address as well. In the router I have assigned a static IP to the Pi
I tried openssl s_client -connect mail.example.com:995, this gives no errors.
This is my main.cf:
# 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 (Raspbian)
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/example.com/fullchain.pem
smtpd_tls_key_file=/etc/letsencrypt/live/example.com/privkey.pem
smtpd_use_tls=yes
smtpd_tls_auth_only = yes
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
# Milter configuration
#milter_default_action = accept
#milter_protocol = 6
#smtpd_milters = local:/opendkim/opendkim.sock
#non_smtpd_milters = $smtpd_milters
# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for
# information on enabling SSL in the smtp client.
myhostname = example.com
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = localhost
relayhost = [smtp.tweak.nl]:587
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
#Handing off local delivery to Dovecot's LMTP, and telling 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
inet_protocols = ipv4
Here is the result of netstat -tulpn:
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:993 0.0.0.0:* LISTEN 9283/dovecot
tcp 0 0 0.0.0.0:995 0.0.0.0:* LISTEN 9283/dovecot
tcp 0 0 0.0.0.0:5355 0.0.0.0:* LISTEN 10120/systemd-resol
tcp 0 0 0.0.0.0:139 0.0.0.0:* LISTEN 1076/smbd
tcp 0 0 0.0.0.0:587 0.0.0.0:* LISTEN 1052/master
tcp 0 0 0.0.0.0:5900 0.0.0.0:* LISTEN 734/vncserver-x11-c
tcp 0 0 0.0.0.0:8112 0.0.0.0:* LISTEN 1187/python
tcp 0 0 0.0.0.0:465 0.0.0.0:* LISTEN 1052/master
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 812/sshd
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 1052/master
tcp 0 0 0.0.0.0:445 0.0.0.0:* LISTEN 1076/smbd
tcp 0 0 0.0.0.0:58846 0.0.0.0:* LISTEN 1179/python
tcp 0 0 0.0.0.0:61696 0.0.0.0:* LISTEN 1179/python
tcp6 0 0 :::993 :::* LISTEN 9283/dovecot
tcp6 0 0 :::995 :::* LISTEN 9283/dovecot
tcp6 0 0 127.0.0.1:8005 :::* LISTEN 849/java
tcp6 0 0 :::3306 :::* LISTEN 938/mysqld
tcp6 0 0 :::5355 :::* LISTEN 10120/systemd-resol
tcp6 0 0 :::139 :::* LISTEN 1076/smbd
tcp6 0 0 :::5900 :::* LISTEN 734/vncserver-x11-c
tcp6 0 0 :::8080 :::* LISTEN 849/java
tcp6 0 0 :::80 :::* LISTEN 4326/apache2
tcp6 0 0 :::22 :::* LISTEN 812/sshd
tcp6 0 0 :::443 :::* LISTEN 4326/apache2
tcp6 0 0 :::445 :::* LISTEN 1076/smbd
tcp6 0 0 :::61696 :::* LISTEN 1179/python
dovecot -n
# 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.16 (fed8554)
# OS: Linux 4.19.66-v7+ armv7l Debian 9.11 ext4
auth_mechanisms = plain login
log_path = /var/log/dovecot.log
mail_location = maildir:/data/mail/vhosts/%d/%n
namespace {
inbox = yes
location =
mailbox {
special_use = \Drafts
name = Drafts
}
mailbox {
special_use = \Junk
name = Junk
}
mailbox {
special_use = \Sent
name = Sent
}
mailbox {
special_use = \Sent
name = Sent Messages
}
mailbox {
special_use = \Trash
name = Trash
}
prefix =
name = inbox
}
passdb {
args = /etc/dovecot/dovecot-sql.conf.ext
driver = sql
}
postmaster_address = %d
protocols = " imap lmtp pop3"
service replication-notify-fifo {
name = aggregator
}
service anvil-auth-penalty {
name = anvil
}
service auth-worker {
user = vmail
name = auth-worker
}
service {
unix_listener {
group = postfix
mode = 0666
user = postfix
path = /var/spool/postfix/private/auth
}
unix_listener {
mode = 0600
user = vmail
path = auth-userdb
}
user = dovecot
name = auth
}
service config {
name = config
}
service dict-async {
name = dict-async
}
service dict {
name = dict
}
service login/proxy-notify {
name = director
}
service dns-client {
name = dns_client
}
service doveadm-server {
name = doveadm
}
service imap-hibernate {
name = imap-hibernate
}
service {
inet_listener {
port = 0
name = imap
}
name = imap-login
}
service imap-urlauth {
name = imap-urlauth-login
}
service imap-urlauth-worker {
name = imap-urlauth-worker
}
service token-login/imap-urlauth {
name = imap-urlauth
}
service imap-master {
name = imap
}
service indexer-worker {
name = indexer-worker
}
service indexer {
name = indexer
}
service ipc {
name = ipc
}
service {
unix_listener {
group = postfix
mode = 0600
user = postfix
path = /var/spool/postfix/private/dovecot-lmtp
}
name = lmtp
}
service log-errors {
name = log
}
service {
inet_listener {
port = 0
name = pop3
}
name = pop3-login
}
service login/pop3 {
name = pop3
}
service replicator-doveadm {
name = replicator
}
service login/ssl-params {
name = ssl-params
}
service stats-mail {
name = stats
}
ssl = required
ssl_cert = </etc/letsencrypt/live/example.com/fullchain.pem
ssl_key = # hidden, use -P to show it
userdb {
args = uid=vmail gid=vmail home=/data/mail/vhosts/%d/%n
driver = static
}
protocol lmtp {
service replication-notify-fifo {
name = aggregator
}
service anvil-auth-penalty {
name = anvil
}
service auth-worker {
name = auth-worker
}
service auth-client {
name = auth
}
service config {
name = config
}
service dict-async {
name = dict-async
}
service dict {
name = dict
}
service login/proxy-notify {
name = director
}
service dns-client {
name = dns_client
}
service doveadm-server {
name = doveadm
}
service imap-hibernate {
name = imap-hibernate
}
service imap {
name = imap-login
}
service imap-urlauth {
name = imap-urlauth-login
}
service imap-urlauth-worker {
name = imap-urlauth-worker
}
service token-login/imap-urlauth {
name = imap-urlauth
}
service imap-master {
name = imap
}
service indexer-worker {
name = indexer-worker
}
service indexer {
name = indexer
}
service ipc {
name = ipc
}
service lmtp {
name = lmtp
}
service log-errors {
name = log
}
service pop3 {
name = pop3-login
}
service login/pop3 {
name = pop3
}
service replicator-doveadm {
name = replicator
}
service login/ssl-params {
name = ssl-params
}
service stats-mail {
name = stats
}
}
protocol lda {
service replication-notify-fifo {
name = aggregator
}
service anvil-auth-penalty {
name = anvil
}
service auth-worker {
name = auth-worker
}
service auth-client {
name = auth
}
service config {
name = config
}
service dict-async {
name = dict-async
}
service dict {
name = dict
}
service login/proxy-notify {
name = director
}
service dns-client {
name = dns_client
}
service doveadm-server {
name = doveadm
}
service imap-hibernate {
name = imap-hibernate
}
service imap {
name = imap-login
}
service imap-urlauth {
name = imap-urlauth-login
}
service imap-urlauth-worker {
name = imap-urlauth-worker
}
service token-login/imap-urlauth {
name = imap-urlauth
}
service imap-master {
name = imap
}
service indexer-worker {
name = indexer-worker
}
service indexer {
name = indexer
}
service ipc {
name = ipc
}
service lmtp {
name = lmtp
}
service log-errors {
name = log
}
service pop3 {
name = pop3-login
}
service login/pop3 {
name = pop3
}
service replicator-doveadm {
name = replicator
}
service login/ssl-params {
name = ssl-params
}
service stats-mail {
name = stats
}
}
protocol imap {
service replication-notify-fifo {
name = aggregator
}
service anvil-auth-penalty {
name = anvil
}
service auth-worker {
name = auth-worker
}
service auth-client {
name = auth
}
service config {
name = config
}
service dict-async {
name = dict-async
}
service dict {
name = dict
}
service login/proxy-notify {
name = director
}
service dns-client {
name = dns_client
}
service doveadm-server {
name = doveadm
}
service imap-hibernate {
name = imap-hibernate
}
service imap {
name = imap-login
}
service imap-urlauth {
name = imap-urlauth-login
}
service imap-urlauth-worker {
name = imap-urlauth-worker
}
service token-login/imap-urlauth {
name = imap-urlauth
}
service imap-master {
name = imap
}
service indexer-worker {
name = indexer-worker
}
service indexer {
name = indexer
}
service ipc {
name = ipc
}
service lmtp {
name = lmtp
}
service log-errors {
name = log
}
service pop3 {
name = pop3-login
}
service login/pop3 {
name = pop3
}
service replicator-doveadm {
name = replicator
}
service login/ssl-params {
name = ssl-params
}
service stats-mail {
name = stats
}
}
protocol pop3 {
service replication-notify-fifo {
name = aggregator
}
service anvil-auth-penalty {
name = anvil
}
service auth-worker {
name = auth-worker
}
service auth-client {
name = auth
}
service config {
name = config
}
service dict-async {
name = dict-async
}
service dict {
name = dict
}
service login/proxy-notify {
name = director
}
service dns-client {
name = dns_client
}
service doveadm-server {
name = doveadm
}
service imap-hibernate {
name = imap-hibernate
}
service imap {
name = imap-login
}
service imap-urlauth {
name = imap-urlauth-login
}
service imap-urlauth-worker {
name = imap-urlauth-worker
}
service token-login/imap-urlauth {
name = imap-urlauth
}
service imap-master {
name = imap
}
service indexer-worker {
name = indexer-worker
}
service indexer {
name = indexer
}
service ipc {
name = ipc
}
service lmtp {
name = lmtp
}
service log-errors {
name = log
}
service pop3 {
name = pop3-login
}
service login/pop3 {
name = pop3
}
service replicator-doveadm {
name = replicator
}
service login/ssl-params {
name = ssl-params
}
service stats-mail {
name = stats
}
Postfix master.cf:
#
# Postfix master process configuration file. For details on the format
# of the file, see the master(5) manual page (command: "man 5 master" or
# on-line: http://www.postfix.org/master.5.html).
#
# Do not forget to execute "postfix reload" after editing this file.
#
# ================================================== ========================
# service type private unpriv chroot wakeup maxproc command + args
# (yes) (yes) (no) (never) (100)
# ================================================== ========================
smtp inet n - n - - smtpd
#smtp inet n - y - 1 postscreen
#smtpd pass - - y - - smtpd
#dnsblog unix - - y - 0 dnsblog
#tlsproxy unix - - y - 0 tlsproxy
submission inet n - n - - smtpd
# -o syslog_name=postfix/submission
# -o smtpd_tls_security_level=encrypt
# -o smtpd_sasl_auth_enable=yes
# -o smtpd_reject_unlisted_recipient=no
# -o smtpd_client_restrictions=$mua_client_restrictions
# -o smtpd_helo_restrictions=$mua_helo_restrictions
# -o smtpd_sender_restrictions=$mua_sender_restrictions
# -o smtpd_recipient_restrictions=
# -o smtpd_relay_restrictions=permit_sasl_authenticated ,reject
# -o milter_macro_daemon_name=ORIGINATING
smtps inet n - y - - smtpd
# -o syslog_name=postfix/smtps
# -o smtpd_tls_wrappermode=yes
# -o smtpd_sasl_auth_enable=yes
# -o smtpd_reject_unlisted_recipient=no
# -o smtpd_client_restrictions=$mua_client_restrictions
# -o smtpd_helo_restrictions=$mua_helo_restrictions
# -o smtpd_sender_restrictions=$mua_sender_restrictions
# -o smtpd_recipient_restrictions=
# -o smtpd_relay_restrictions=permit_sasl_authenticated ,reject
# -o milter_macro_daemon_name=ORIGINATING
#628 inet n - y - - qmqpd
pickup unix n - y 60 1 pickup
cleanup unix n - y - 0 cleanup
qmgr unix n - n 300 1 qmgr
#qmgr unix n - n 300 1 oqmgr
tlsmgr unix - - y 1000? 1 tlsmgr
rewrite unix - - y - - trivial-rewrite
bounce unix - - y - 0 bounce
defer unix - - y - 0 bounce
trace unix - - y - 0 bounce
verify unix - - y - 1 verify
flush unix n - y 1000? 0 flush
proxymap unix - - n - - proxymap
proxywrite unix - - n - 1 proxymap
smtp unix - - y - - smtp
relay unix - - y - - smtp
# -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
showq unix n - y - - showq
error unix - - y - - error
retry unix - - y - - error
discard unix - - y - - discard
local unix - n n - - local
virtual unix - n n - - virtual
lmtp unix - - y - - lmtp
anvil unix - - y - 1 anvil
scache unix - - y - 1 scache
#
# ================================================== ==================
# Interfaces to non-Postfix software. Be sure to examine the manual
# pages of the non-Postfix software to find out what options it wants.
#
# Many of the following services use the Postfix pipe(8) delivery
# agent. See the pipe(8) man page for information about ${recipient}
# and other message envelope options.
# ================================================== ==================
#
# maildrop. See the Postfix MAILDROP_README file for details.
# Also specify in main.cf: maildrop_destination_recipient_limit=1
#
maildrop unix - n n - - pipe
flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient}
#
# ================================================== ==================
#
# Recent Cyrus versions can use the existing "lmtp" master.cf entry.
#
# Specify in cyrus.conf:
# lmtp cmd="lmtpd -a" listen="localhost:lmtp" proto=tcp4
#
# Specify in main.cf one or more of the following:
# mailbox_transport = lmtp:inet:localhost
# virtual_transport = lmtp:inet:localhost
#
# ================================================== ==================
#
# Cyrus 2.1.5 (Amos Gouaux)
# Also specify in main.cf: cyrus_destination_recipient_limit=1
#
#cyrus unix - n n - - pipe
# user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user}
#
# ================================================== ==================
# Old example of delivery via Cyrus.
#
#old-cyrus unix - n n - - pipe
# flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user}
#
# ================================================== ==================
#
# See the Postfix UUCP_README file for configuration details.
#
uucp unix - n n - - pipe
flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
#
# Other external delivery methods.
#
ifmail unix - n n - - pipe
flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
bsmtp unix - n n - - pipe
flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient
scalemail-backend unix - n n - 2 pipe
flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension}
mailman unix - n n - - pipe
flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
${nexthop} ${user}
I hope this is enough information for you to be able to help me, if it isn't, please let me know and I'll post more.