Just add [SPAM] in Subject and not move mails to Spam folder

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azlanirda
Posts: 20
Joined: Mon Feb 01, 2021 12:30 pm
Just add [SPAM] in Subject and not move mails to Spam folder

Post by azlanirda »

i have a question regarding the email setting of a domain...

if i disable the antispam support, does that means that all the email from that domain, will straight go to inbox, and not reach the spam folder...

the reason being is that, i have a customer that uses pop3.. lately, all the regular email such as notification from bank, will go into the spam folder. so when they check offline using pop, they will not get it as it only check the inbox folder...

or any idea on how to overcome this..

thanks..

User avatar
dpeca
Site Admin
Posts: 413
Joined: Fri Jun 19, 2020 9:59 am
Re: AntiSpam support

Post by dpeca »

If it's the only user on that server, here is exim.conf that will just add [SPAM] in Subject and not move mails to Spam folder:

Code: Select all

######################################################################
#                                                                    #
#          Exim configuration file for Vesta Control Panel           #
#                                                                    #
######################################################################

SPAMASSASSIN = yes
SPAM_SCORE = 50
CLAMD =  yes

disable_ipv6=true
add_environment=<; PATH=/bin:/usr/bin
keep_environment=

domainlist local_domains = dsearch;/etc/exim4/domains/
domainlist relay_to_domains = dsearch;/etc/exim4/domains/
hostlist relay_from_hosts = 127.0.0.1
hostlist whitelist = net-iplsearch;/etc/exim4/white-blocks.conf
hostlist spammers = net-iplsearch;/etc/exim4/spam-blocks.conf
no_local_from_check
untrusted_set_sender = *
acl_smtp_connect = acl_check_spammers
acl_smtp_mail = acl_check_mail
acl_smtp_rcpt = acl_check_rcpt
acl_smtp_data = acl_check_data
acl_smtp_mime = acl_check_mime

recipients_max = 15
recipients_max_reject = true

# log_selector = +smtp_connection
smtp_accept_max = 50
smtp_accept_max_per_host = 4

.ifdef SPAMASSASSIN
spamd_address = 127.0.0.1 783
.endif

.ifdef CLAMD
av_scanner = clamd: /var/run/clamav/clamd.ctl
.endif

tls_advertise_hosts = *
tls_certificate = /usr/local/vesta/ssl/certificate.crt
tls_privatekey = /usr/local/vesta/ssl/certificate.key

daemon_smtp_ports = 25 : 465 : 587 : 2525
tls_on_connect_ports = 465
never_users = root
host_lookup = *
rfc1413_hosts = *
rfc1413_query_timeout = 0s
ignore_bounce_errors_after = 2d
timeout_frozen_after = 7d

DKIM_DOMAIN = ${lc:${domain:$h_from:}}
DKIM_FILE = /etc/exim4/domains/${lc:${domain:$h_from:}}/dkim.pem
DKIM_PRIVATE_KEY = ${if exists{DKIM_FILE}{DKIM_FILE}{0}}



######################################################################
#                       ACL CONFIGURATION                            #
#         Specifies access control lists for incoming SMTP mail      #
######################################################################

acl_not_smtp = acl_not_smtp

begin acl

acl_not_smtp:
  deny message = Web site is sending too much emails [limitlog]: deny / account / $authenticated_id / $sender_rate / $sender_rate_period
  ratelimit = 40 / 1h / $authenticated_id

  warn ratelimit = 0 / 1h / strict / $authenticated_id
  log_message = Sender rate [limitlog]: log / account / $authenticated_id / $sender_rate / $sender_rate_period

  accept

acl_check_spammers:
  accept  hosts         = +whitelist

  drop    message       = Your host in blacklist on this server.
          log_message   = Host in blacklist
          hosts         = +spammers

  accept


acl_check_mail:
  deny    condition     = ${if eq{$sender_helo_name}{}}
          message       = HELO required before MAIL

  drop    message       = Helo name contains a ip address (HELO was $sender_helo_name) and not is valid
          condition     = ${if match{$sender_helo_name}{\N((\d{1,3}[.-]\d{1,3}[.-]\d{1,3}[.-]\d{1,3})|([0-9a-f]{8})|([0-9A-F]{8}))\N}{yes}{no}}
          condition     = ${if match{${lc:$sender_host_name}}{.telenor.rs}{false}{true}}
          condition     = ${if match {${lookup dnsdb{>: defer_never,ptr=$sender_host_address}}\}{$sender_helo_name}{no}{yes}}
          delay         = 45s

  drop    condition     = ${if isip{$sender_helo_name}}
          message       = Access denied - Invalid HELO name (See RFC2821 4.1.3)

  drop    condition     = ${if eq{[$interface_address]}{$sender_helo_name}}
          message       = $interface_address is _my_ address

  accept


acl_check_rcpt:
  accept  hosts         = :

  deny message = Email account is sending too much emails [limitlog]: deny / email / $authenticated_id / $sender_rate / $sender_rate_period
  ratelimit = 40 / 1h / $authenticated_id

  warn ratelimit = 0 / 1h / strict / $authenticated_id
  log_message = Sender rate [limitlog]: log / email / $authenticated_id / $sender_rate / $sender_rate_period

  deny    message       = Restricted characters in address
          domains       = +local_domains
          local_parts   = ^[.] : ^.*[@%!/|]

  deny    message       = Restricted characters in address
          domains       = !+local_domains
          local_parts   = ^[./|] : ^.*[@%!] : ^.*/\\.\\./

  require verify        = sender

  accept  hosts         = +relay_from_hosts
          control       = submission

  accept  authenticated = *
          control       = submission/domain=

  deny    message       = Rejected because $sender_host_address is in a black list at $dnslist_domain\n$dnslist_text
          hosts         = !+whitelist
          dnslists      = ${readfile {/etc/exim4/dnsbl.conf}{:}}

  require message       = relay not permitted
          domains       = +local_domains : +relay_to_domains

  deny    message       = smtp auth requried
         sender_domains = +local_domains
         !authenticated = *

  require verify        = recipient

.ifdef CLAMD
  warn    set acl_m0    = no

  warn    condition     = ${if exists {/etc/exim4/domains/$domain/antivirus}{yes}{no}}
          set acl_m0    = yes
.endif

.ifdef SPAMASSASSIN
  warn    set acl_m1    = no

  warn    condition     = ${if exists {/etc/exim4/domains/$domain/antispam}{yes}{no}}
          set acl_m1    = yes
.endif

  accept


acl_check_data:

  deny senders = /etc/exim4/deny_senders

.ifdef CLAMD
  deny   message        = Message contains a virus ($malware_name) and has been rejected
         malware        = */defer_ok
         condition      = ${if eq{$acl_m0}{yes}{yes}{no}}
.endif

.ifdef SPAMASSASSIN
  warn   !authenticated = *
         hosts          = !+relay_from_hosts
         condition      = ${if < {$message_size}{100K}}
         condition      = ${if eq{$acl_m1}{yes}{yes}{no}}
         spam           = nobody:true/defer_ok
         set acl_m2     = $spam_score_int

  warn   condition      = ${if !eq{$acl_m2}{} {yes}{no}}
         condition      = ${if >{$acl_m2}{SPAM_SCORE} {yes}{no}}
         remove_header  = Subject
         add_header     = Subject: [SPAM, score: $spam_score] $h_Subject
         # add_header     = X-Spam-Score: $spam_score_int
         # add_header     = X-Spam-Bar: $spam_bar	
         # add_header     = X-Spam-Report: $spam_report
         # add_header     = X-Spam-Status: Yes
         # message        = SpamAssassin detected spam (from $sender_address to $recipients).
.endif

  accept


acl_check_mime:
  deny   message        = Blacklisted file extension detected
         condition      = ${if match {${lc:$mime_filename}}{\N(\.ade|\.adp|\.bat|\.chm|\.cmd|\.com|\.cpl|\.exe|\.hta|\.ins|\.isp|\.jse|\.lib|\.lnk|\.mde|\.msc|\.msp|\.mst|\.pif|\.scr|\.sct|\.shb|\.sys|\.vb|\.vbe|\.vbs|\.vxd|\.wsc|\.wsf|\.wsh|\.jar)$\N}{1}{0}}

  accept



######################################################################
#                   AUTHENTICATION CONFIGURATION                     #
######################################################################
begin authenticators

dovecot_plain:
  driver = dovecot
  public_name = PLAIN
  server_socket = /var/run/dovecot/auth-client
  server_set_id = $auth1

dovecot_login:
  driver = dovecot
  public_name = LOGIN
  server_socket = /var/run/dovecot/auth-client
  server_set_id = $auth1



######################################################################
#                      ROUTERS CONFIGURATION                         #
#               Specifies how addresses are handled                  #
######################################################################
begin routers

#smarthost:
#  driver = manualroute
#  domains = ! +local_domains
#  transport = remote_smtp
#  route_list = * smartrelay.vestacp.com
#  no_more
#  no_verify

dnslookup:
  driver = dnslookup
  domains = !+local_domains
  transport = remote_smtp
  no_more

userforward:
  driver = redirect
  check_local_user
  file = $home/.forward
  allow_filter
  no_verify
  no_expn
  check_ancestor
  file_transport = address_file
  pipe_transport = address_pipe
  reply_transport = address_reply

procmail:
  driver = accept
  check_local_user
  require_files = ${local_part}:+${home}/.procmailrc:/usr/bin/procmail
  transport = procmail
  no_verify

autoreplay:
  driver = accept
  require_files = /etc/exim4/domains/$domain/autoreply.${local_part}.msg
  condition = ${if exists{/etc/exim4/domains/$domain/autoreply.${local_part}.msg}{yes}{no}}
  retry_use_local_part
  transport = userautoreply
  unseen

aliases:
  driver = redirect
  headers_add = X-redirected: yes
  data = ${extract{1}{:}{${lookup{[email protected]$domain}lsearch{/etc/exim4/domains/$domain/aliases}}}}
  require_files = /etc/exim4/domains/$domain/aliases
  redirect_router = dnslookup
  pipe_transport = address_pipe
  unseen

localuser_fwd_only:
  driver = accept
  transport = devnull
  condition = ${if exists{/etc/exim4/domains/$domain/fwd_only}{${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/fwd_only}{true}{false}}}}

# localuser_spam:
#   driver = accept
#   transport = local_spam_delivery
#   condition = ${if eq {${if match{$h_X-Spam-Status:}{\N^Yes\N}{yes}{no}}} {${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}{yes}{no_such_user}}}}

localuser:
  driver = accept
  transport = local_delivery
  condition = ${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}{true}{false}}

catchall:
  driver = redirect
  headers_add = X-redirected: yes
  require_files = /etc/exim4/domains/$domain/aliases
  data = ${extract{1}{:}{${lookup{*@$domain}lsearch{/etc/exim4/domains/$domain/aliases}}}}
  file_transport = local_delivery
  redirect_router = dnslookup

terminate_alias:
  driver = accept
  transport = devnull
  condition = ${lookup{[email protected]$domain}lsearch{/etc/exim4/domains/$domain/aliases}{true}{false}}



######################################################################
#                      TRANSPORTS CONFIGURATION                      #
######################################################################
begin transports

remote_smtp:
  driver = smtp
  #helo_data = $sender_address_domain
  dkim_domain = DKIM_DOMAIN
  dkim_selector = mail
  dkim_private_key = DKIM_PRIVATE_KEY
  dkim_canon = relaxed
  dkim_strict = 0
  hosts_try_chunking = !93.188.3.0/24

procmail:
  driver = pipe
  command = "/usr/bin/procmail -d $local_part"
  return_path_add
  delivery_date_add
  envelope_to_add
  user = $local_part
  initgroups
  return_output

local_delivery:
  driver = appendfile
  maildir_format
  maildir_use_size_file
  user = ${extract{2}{:}{${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}}}}
  group = mail
  create_directory
  directory_mode = 770
  mode = 660
  use_lockfile = no
  delivery_date_add
  envelope_to_add
  return_path_add
  directory = "${extract{5}{:}{${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}}}}/mail/$domain/$local_part"
  quota = ${extract{6}{:}{${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}}}}M
  quota_warn_threshold = 75%

# local_spam_delivery:
#  driver = appendfile
#  maildir_format
#  maildir_use_size_file
#  user = ${extract{2}{:}{${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}}}}
#  group = mail
#  create_directory
#  directory_mode = 770
#  mode = 660
#  use_lockfile = no
#  delivery_date_add
#  envelope_to_add
#  return_path_add
#  directory = "${extract{5}{:}{${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}}}}/mail/$domain/$local_part/.Spam"
#  quota = ${extract{6}{:}{${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}}}}M
#  quota_directory = "${extract{5}{:}{${lookup{$local_part}lsearch{/etc/exim4/domains/$domain/passwd}}}}/mail/$domain/$local_part"
#  quota_warn_threshold = 75%

address_pipe:
  driver = pipe
  return_output

address_file:
  driver = appendfile
  delivery_date_add
  envelope_to_add
  return_path_add

address_reply:
  driver = autoreply

userautoreply:
  driver = autoreply
  file = /etc/exim4/domains/$domain/autoreply.${local_part}.msg
  from = "${local_part}@${domain}"
  headers = Content-Type: text/plain; charset=utf-8;\nContent-Transfer-Encoding: 8bit
  subject = "${if def:h_Subject: {Autoreply: \"${rfc2047:$h_Subject:}\"} {Autoreply Message}}"
  to = "${sender_address}"

devnull:
  driver = appendfile
  file = /dev/null



######################################################################
#                      RETRY CONFIGURATION                           #
######################################################################
begin retry

# Address or Domain    Error       Retries
# -----------------    -----       -------
*                      *           F,2h,15m; G,16h,1h,1.5; F,4d,6h



######################################################################
#                      REWRITE CONFIGURATION                         #
######################################################################
begin rewrite



######################################################################
Use diff to see what's changed, or WinMerge if you use Windows.

Restart exim after modification:

Code: Select all

service exim4 restart


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