| SYSTEM INFORMATION | |
|---|---|
| OS type and version | Ubuntu Server 20.04 |
| Webmin version | 2.021 |
| Virtualmin version | 7.5 |
| Related packages | Postfix |
Hi! So another day, another problem to overcome!
I recently attempted to lessen “backscatter” spam, and inadvertently botched something. I followed a couple of GeoIP blocking guides, and it stopped any and all mail from reaching my server at all. I’ve unwound what I “thought” was all the alterations, however, now the server receives the emails, but doesn’t deliver them to the mailboxes of all domains & users. I attempted install of postscreen, and GeoIP Postfix Block.
Here is a copy of 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 $mail_name (Ubuntu)
biff = no
#appending .domain is the MUA’s job.
append_dot_mydomain = no
#Uncomment the next line to generate “delayed mail” warnings
#delay_warning_time = 4h
readme_directory = no
#See Postfix Backwards-Compatibility Safety Net – default to 2 on
#fresh installs.
compatibility_level = 2
#TLS parameters
smtpd_tls_cert_file = /etc/postfix/postfix.cert.pem
smtpd_tls_key_file = /etc/postfix/postfix.key.pem
smtpd_tls_security_level = may
smtp_tls_CApath=/etc/ssl/certs
smtp_tls_security_level = dane
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_relay_restrictions = defer_unauth_destination permit_mynetworks permit_inet_interfaces permit_sasl_authenticated
myhostname = rread.co.uk
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = $myhostname, rread.co.uk, localhost.co.uk, , localhost
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mailbox_command = /usr/bin/procmail-wrapper -o -a $DOMAIN -d $LOGNAME
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
inet_protocols = all
virtual_alias_maps = hash:/etc/postfix/virtual
sender_bcc_maps = hash:/etc/postfix/bcc
sender_dependent_default_transport_maps = hash:/etc/postfix/dependent
home_mailbox = Maildir/
broken_sasl_auth_clients = yes
smtp_dns_support_level = dnssec
smtp_host_lookup = dns
allow_percent_hack = no
resolve_dequoted_address = no
tls_server_sni_maps = hash:/etc/postfix/sni_map
smtpd_tls_CAfile = /etc/postfix/postfix.ca.pem
smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3, !TLSv1, !TLSv1.1
milter_default_action = accept
smtpd_milters = inet:localhost:8891
non_smtpd_milters = inet:localhost:8891smtpd_recipient_restrictions = permit_sasl_authenticated
and this is the master, where I hashed and unhashed a couple of entries.
#Postfix master process configuration file. For details on the format
#of the file, see the master(5) manual page (command: “man 5 master” or
#on-line: Postfix manual - master(5)).
#Do not forget to execute “postfix reload” after editing this file.
#==========================================================================
#service type private unpriv chroot wakeup maxproc command + args
(yes) (yes) (no) (never) (100)
#==========================================================================
#smtp inet n - y - - smtpd -o smtpd_sasl_auth_enable=yes -o smtpd_tls_security_level=may
smtp inet n - y - 1 postscreen
smtpd pass - - y - - smtpd
dnsblog unix - - y - 0 dnsblog
tlsproxy unix - - y - 0 tlsproxy
submission inet n - y - - smtpd
#-o syslog_name=postfix/submission
#-o smtpd_tls_security_level=encrypt
#-o smtpd_sasl_auth_enable=yes
#-o smtpd_tls_auth_only=yes
#-o smtpd_reject_unlisted_recipient=no
#-o smtpd_client_restrictions=$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=$mua_sender_restrictions
#-o smtpd_recipient_restrictions=
#-o smtpd_relay_restrictions=permit_sasl_authenticated,reject
#-o milter_macro_daemon_name=ORIGINATING
#628 inet n - y - - qmqpd
pickup unix n - y 60 1 pickup
cleanup unix n - y - 0 cleanup
qmgr unix n - n 300 1 qmgr
#qmgr unix n - n 300 1 oqmgr
tlsmgr unix - - y 1000? 1 tlsmgr
rewrite unix - - y - - trivial-rewrite
bounce unix - - y - 0 bounce
defer unix - - y - 0 bounce
trace unix - - y - 0 bounce
verify unix - - y - 1 verify
flush unix n - y 1000? 0 flush
proxymap unix - - n - - proxymap
proxywrite unix - - n - 1 proxymap
smtp unix - - y - - smtp
relay unix - - y - - smtp
-o syslog_name=postfix/$service_name
#-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
postlog unix-dgram n - n - 1 postlogd
#====================================================================
#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}
submission inet n - y - - smtpd -o smtpd_sasl_auth_enable=yes -o smtpd_tls_security_level=may
smtps inet n - y - - smtpd -o smtpd_sasl_auth_enable=yes -o smtpd_tls_security_level=may -o smtpd_tls_wrappermode=yes
I think I’m going to take backup of configs before I twiddle with any more LOLOLOL.
Cheers for your inevitable responses, and I’d applaud any name calling due to my marvellous ability to right ol’ make a mess of any and all things Virtualmin 
