# No one will use these in helo command.
/^(localhost)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/^(localhost.localdomain)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(\.local)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})

# Reject who use IP address as helo.
# Correct:      [xxx.xxx.xxx.xxx]
# Incorrect:    xxx.xxx.xxx.xxx
/^([0-9\.]+)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server sent non RFC compliant HELO identity (${1})

#
# This is the real HELO identify of these ISPs:
#   sohu.com    websmtp.sohu.com relay2nd.mail.sohu.com
#   126.com     m15-78.126.com
#   sina.com    mail2-209.sinamail.sina.com.cn
#   gmail.com   xx-out-NNNN.google.com
/^(126\.com)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server seems to be impersonating another mail server (${1})
/^(sohu\.com)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server seems to be impersonating another mail server (${1})
/^(gmail\.com)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server seems to be impersonating another mail server (${1})
/^(google\.com)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server seems to be impersonating another mail server (${1})
/^(yahoo\.com\.cn)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server seems to be impersonating another mail server (${1})
/^(yahoo\.co\.jp)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server seems to be impersonating another mail server (${1})

# Spammers.
/^(728154EA470B4AA\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(taj-co\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(CF8D3DB045C1455\.net)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(dsgsfdg\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(se\.nit7-ngbo\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(mail\.goo\.ne\.jp)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(n-ong_an\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(meqail\.teamefs-ine5tl\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(zzg\.jhf-sp\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(din_glo-ng\.net)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(fda-cnc\.ie\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(yrtaj-yrco\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(m\.am\.biz\.cn)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(xr_haig\.roup\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(hjn\.cn)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(we_blf\.com\.cn)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(netvigator\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(mysam\.biz)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(mail\.teams-intl\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(seningbo\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(nblf\.com\.cn)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(kdn\.ktguide\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(zzsp\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(nblongan\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(dpu\.cn)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(nbalton\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(cncie\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(xinhaigroup\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/^(wz\.com)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/(\.zj\.cn)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})
/(\.kornet)$/ REJECT ACCESS DENIED. Your email was rejected because it appears to come from a known spamming mail server (${1})

/^(dsldevice\.lan)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/^(system\.mail)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/^(speedtouch\.lan)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})

# Reject adsl spammers.
# match word `adsl` with word boundary `\b`.
/(\badsl\b)/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (${1})

# bypass "[IP_ADDRESS]"
/^\[(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})\]$/ OK

# Bypass HELOs used by known big ISPs which contains IP address
/\.outbound-(email|mail)\.sendgrid\.net$/ OK
/^\d{1,3}-\d{1,3}-\d{1,3}-\d{1,3}\.mail-.*\.facebook\.com$/ OK
/^outbound-\d{1,3}-\d{1,3}-\d{1,3}-\d{1,3}\.pinterestmail\.com$/ OK
/\.outbound\.protection\.outlook\.com$/ OK
/^ec2-\d{1,3}-\d{1,3}-\d{1,3}-\d{1,3}\..*\.compute\.amazonaws\.com$/ OK
/^out\d{1,3}-\d{1,3}-\d{1,3}-\d{1,3}\.mail\.qq\.com$/ OK

# reject HELO which contains IP address
/(\d{1,3}[\.-]\d{1,3}[\.-]\d{1,3}[\.-]\d{1,3})/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (${1})
/(\d{1,3}\.ip\.-\d{1,3}-\d{1,3}-\d{1,3}\.eu)/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (${1})
/(pppoe)/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (${1})
/(dsl\.brasiltelecom\.net\.br)/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (${1})
/(dsl\.optinet\.hr)/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (${1})
/(dsl\.telesp\.net\.br)/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (${1})
/(dialup)/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (${1})
/(dhcp)/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (${1})
/(static-pool-[\d\.-]*\.flagman\.zp\.ua)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (${1})

/(speedy\.com\.ar)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (${1})
/(speedyterra\.com\.br)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (${1})
/(static\.sbb\.rs)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (${1})
/(static\.vsnl\.net\.in)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server appears to be on a dynamic IP address that should not be doing direct mail delivery (${1})

/(advance\.com\.ar)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(airtelbroadband\.in)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(bb\.netvision\.net\.il)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(broadband3\.iol\.cz)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(cable\.net\.co)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(catv\.broadband\.hu)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(chello\.nl)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(chello\.sk)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(client\.mchsi\.com)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(comunitel\.net)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(coprosys\.cz)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(dclient\.hispeed\.ch)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(dip0\.t-ipconnect\.de)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(domain\.invalid)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(dyn\.centurytel\.net)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(embarqhsd\.net)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(emcali\.net\.co)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(epm\.net\.co)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(fibertel\.com\.ar)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(freedom2surf\.net)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(hgcbroadband\.com)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(HINET-IP\.hinet\.net)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(infonet\.by)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(is74\.ru)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(kievnet\.com\.ua)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(metrotel\.net\.co)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(nw\.nuvox\.net)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(pldt\.net)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(pool\.invitel\.hu)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(pool\.ukrtel\.net)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(pools\.arcor-ip\.net)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(pppoe\.avangarddsl\.ru)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(retail\.telecomitalia\.it)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(revip2\.asianet\.co\.th)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(tim\.ro)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(tsi\.tychy\.pl)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(ttnet\.net\.tr)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(tttmaxnet\.com)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(user\.veloxzone\.com\.br)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(utk\.ru)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(veloxzone\.com\.br)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(virtua\.com\.br)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(wanamaroc\.com)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(wbt\.ru)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(wireless\.iaw\.on\.ca)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(business\.telecomitalia\.it)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(cotas\.com\.bo)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(marunouchi\.tokyo\.ocn\.ne\.jp)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(amedex\.com)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/(aageneva\.com)$/ REJECT ACCESS DENIED. Your email was rejected because the sending mail server does not identify itself correctly (${1})
/^ylmf-pc/ REJECT ACCESS DENIED

/(\.*wideragents\.com)$/ REJECT ACCESS DENIED (${1})
/(\.*resumekeep\.net)$/ REJECT ACCESS DENIED (${1})
/(\.*terracedrink\.com)$/ REJECT ACCESS DENIED (${1})
/(\.*sincemessage\.com)$/ REJECT ACCESS DENIED (${1})
/(\.*ordertranquility\.com)$/ REJECT ACCESS DENIED (${1})