Securing Your Mail Server by Blacklisting Suspicious Domains

Hello and welcome to another "special interest" post on MeAgainstTheWeb.de! Today, we'll discuss a crucial aspect of securing your mail server: blacklisting suspicious domains. By implementing this measure, you can prevent spam and other malicious activities from infiltrating your inbox.

Make your mail server a bit more secure by blacklisting the following domains. These domains are hand-picked by myself, and I block them in all mail server configurations. You are welcome to use it.

Suspicious Domains

Be aware: The first 4 lines are blocking all .cn, .cyou, .mk and .ru domains.

# Update on 28aug23
24recommend.mixh.jp
.cn
.cyou
.mk
.ru
ac-rennes.fr
adygeya.su
aerostatus.net
aet-biomass.com
aet.dk
ageprepcare.com.au
aksasultansofrasi.ch
alfazoners.gen.tr
alphaplus-conseil.fr
alsorouh.net
amagicalnightinthedesert.com
amigosdavida.org
anunciorama.es
arabrcp.org
arbecom.es
arcep.td
art-host.pl
associazioneleco.it
asterakimoulampro.gr
at4s.in
aussiebuyin.com.au
aviafrica.net
bagagevagn.se
bell.net
bestion-hotel.capetown
billiga-ismaskiner.se
binictaxi.ch
boosterindextournament.com
brickvagn.se
btn-muenzen.de
bubrrecatstudio.ch
bueromoebelservice.com
butikskylar.se
buyhoodiagordoniiplus.com
byggabar.se
caiado.com.br
campstgeorge.org
capsuladetmaxagrodisa.com
carbonkimono.com
cei.edu.do
cgtsalamanca.org
chafingdish.se
chasingallshines.com
civilwarhomestead.com
cms14.kayna.org
codehupy.org.py
comeagainstronger.com
concierge-prive.ch
congress-urology.org
creaba.org.br
crisisgroup.org
daloon-as.dk
decocortinas.es
degblandare.net
depeval.org
dev-zero.org
dfds.info
disabledhelpline.org
discounting.ch
dishhome.com.np
dominose.free.hr
elevenevents.es
elijahfellowshipcc.org
ensafecolombia.com
eraseandrewind.org
ettlehousingcompartment.org
ex-vital.de
extintorestarvi.es
festanmes.pl
finanzen-zero.net
finsky-palace.radio.am
flyantigua.net
fondolechero.org
foretagsutemobler.se
fussball-tischkicker.com
garderobsbrickor.se
gastonsers.autos
gclexperts.net
gelinstar.com.es
gerasetiona.adygeya.su
glaenzendreinigung.ch
glucklichnews.de
gmx.net
goldenhair.at
golostalys.free.hr
gourmetdouble.com
greenmedialive.ie
greenroad.gr
grunchem.com
guteszulesen.de
handtork.net
hangseng.ch
hendersonprinting.net
highschoolinvestigation.com
hilfreichmail.de
himalayan.holdings
homerooted.org
hopehand.no
hpinvestigations.com
iaeti.org
iaso-organization.org
illusionarygenius.org
inuk9.es
investinafrica.nl
iseedchurch.org
iskross.se
jacate.fr
joosterline.eu
ju-fa.hu
kaffekokare.net
kalbererliegenschaften.ch
kbi4.org
kctd.org
kebabkniv.se
kkoms.com
koksklader.se
korvvarmeri.se
kottkvarn.net
laterparallels.com
leamingtonpath.com
legamissionaria.it
li.me
lonestarair.net
lookinglikeasnack.net
lovenestfamily.org
mail.raymon.ltd
majesticdimes.com
manancialdasabedoria.org
marcosnavarropersonaltrainers.es
marianogarciaabogado.es
mariebeatrice-micouleau.fr
maxipinfo.de
maythehorsebewithyou.org
mazamins.uk
megagrossmarkt.ch
mein-dailystock.de
metamorph.es
michelo.org
ministrandoemfe.org
miqueias.net
morris-energy.org
mrgadgetsolutions.co.uk
munpokharabids.gov.np
nb.sympatico.ca
nbnet.nb.ca
ncconsulting.com.do
neos.north-kazakhstan.su
never-hostel.radio.fm
newpilotagegroups.com
news-ultima.de
news.tomorrow.one
newsletter-empfehlung.de
nline.net.ua
nokelanser.hz.cz
notistall.balashov.su
notoaharmony.com
notstromgenerator.net
novasol.io
novosibirsk-ac.ru
nugasur.es
obraslux.es
ogradesimonovic.rs
onet.pl
onlineworkshopsandevents.org
oppnamoderater.se
osaka-monorail.co.jp
otimoonline.com.br
otrt.org
otrt.td
palconsulting.net
panditpublications.org
parlzim.gov.zw
paulvega.ch
pei.sympatico.ca
phdinstitute.org
pitchbit.ch
podolsky12.online
priyaeducationabroad.com
qactrep.com
qandt.ch
rapportannuel-assurancemaladie-essonne.fr
rieber.net
royalcrossgym.hu
rshdl.org
ryaca.ca
sandpanda.org
sastinseros.mom
satte-raba.de
sayed.es
sayed.ltd
saynotoalcohol.in
scribbleshark.com
sentinelle.nl
serviplusintegral.org
shepmatictechnologies.co.za
sierrabrava.net
simeonscamp.org
skatersdressinblack.com
skynet.be
smadeal24.de
soins-chamaniques-suisse.ch
solodatos.es
sormilaacharjee.com
sparkpost.bulthuis.eu
stayinthecircle.org
stepintrade.net
substack.com
sunindustries.org
superfanpage.org
sust.edu
svlyachtclub.org
talesoftheshelter.com
taufeeq.net
taxeapprentissagechevrollier.fr
teleappcare.com
tendm.fr
thatwaswild.org
theharshdesert.com
tokyo-workers.org
topmusic.ch
topmusique.ch
torrida.net
towardstheorigin.com
treasureofgames.com
u-bahn.fr
uckyjackpot4you.com
vagnersalazar.com.br
vergolanz.co.nz
versandkaiser.net
villagrillhaus.ch
vitalesthe.nl
wasd.tv
wealthexperts.net
wewe.global
whiterosedental.ca
wuerth.it
xn--gerstbau-bf-vhb.ch
zadiservices.fr
zipinskys.com.es
zkrt.net
zonasul.com.br

About Blacklisting Domains

Now, you may be wondering why blacklisting these domains is necessary. Well, spammers and hackers often use these domains to send out malicious emails, phishing attempts, and other cyber threats. By blacklisting them, you're effectively blocking a large portion of potential threats and keeping your inbox clean and safe.

Here's how to add these domains to your mail server's blacklist:

Access your mail server's control panel.
Locate the blacklist or spam filtering settings.
Add the domains from the list above to the blacklist.
Save your changes and restart your mail server if necessary.
Remember, this is just one step in securing your mail server. Always stay vigilant and keep an eye out for any suspicious activities or emails. It's essential to have strong security measures in place, such as using secure passwords, enabling two-factor authentication, and keeping your software up-to-date.

I hope you found this post helpful in securing your mail server against potential threats. You are welcome to share your thoughts, experiences, or additional tips in the comments section below. Stay safe, and happy emailing!