Use nslookup to check whether the IP of the mail server is blacklisted by Spam Advisory
There are many spam advisory databases on the Internet, such as spamhaus and so on.
For example, to query whether IP 1.2.3.4 is blacklisted by ahbl.org, use the following command
Nslookup 4.3.2.1.dnsbl.ahbl.org
If the returned result is Non-existent domain, there is no problem.
If the return result is 127.0.0.x, it means that it is blacklisted, and x can be a value of 1-255, depending on the database.
Of course, some databases provide web query, which is also very convenient.
The advantage of viewing with commands is that you can write scripts to view multiple databases at the same time.
Attach a list of domain names of some anti-spam organizations
Asiaspam.spamblocked.com
Bl.deadbeef.com
Bl.emailbasura.org
Bl.spamcop.net
Blackholes.five-ten-sg.com
Blacklist.woody.ch
Bogons.cymru.com
Cbl.abuseat.org cdl.anti-spam.org.cn
Combined.abuse.ch
Combined.rbl.msrbl.net
Db.wpbl.info
Dnsbl-1.uceprotect.net
Dnsbl-2.uceprotect.net
Dnsbl-3.uceprotect.net
Dnsbl.abuse.ch
Dnsbl.ahbl.org
Dnsbl.cyberlogic.net
Dnsbl.inps.de
Dnsbl.njabl.org
Dnsbl.sorbs.net
Drone.abuse.ch
Duinv.aupads.org
Dul.dnsbl.sorbs.net
Dul.ru
Dyna.spamrats.com
Dynip.rothen.com
Eurospam.spamblocked.com
Fl.chickenboner.biz
Http.dnsbl.sorbs.net
P_w_picpaths.rbl.msrbl.net
Ips.backscatterer.org
Isps.spamblocked.com
Ix.dnsbl.manitu.net
Korea.services.net
Lacnic.spamblocked.com
Misc.dnsbl.sorbs.net
Noptr.spamrats.com
Ohps.dnsbl.net.au
Omrs.dnsbl.net.au
Orvedb.aupads.org
Osps.dnsbl.net.au
Osrs.dnsbl.net.au
Owfs.dnsbl.net.au
Owps.dnsbl.net.au
Pbl.spamhaus.org
Phishing.rbl.msrbl.net
Probes.dnsbl.net.au
Proxy.bl.gweep.ca
Proxy.block.transip.nl
Psbl.surriel.com
Rbl.interserver.net
Rdts.dnsbl.net.au
Relays.bl.gweep.ca
Relays.bl.kundenserver.de
Relays.nether.net
Residential.block.transip.nl
Ricn.dnsbl.net.au
Rmst.dnsbl.net.au
Sbl.spamhaus.org
Short.rbl.jp
Smtp.dnsbl.sorbs.net
Socks.dnsbl.sorbs.net
Spam.dnsbl.sorbs.net
Spam.rbl.msrbl.net
Spam.spamrats.com
Spamlist.or.kr
Spamrbl.imp.ch
T3direct.dnsbl.net.au
Tor.ahbl.org
Tor.dnsbl.sectoor.de
Torserver.tor.dnsbl.sectoor.de
Ubl.lashback.com
Ubl.unsubscore.com
Virbl.bit.nl
Virus.rbl.jp
Virus.rbl.msrbl.net
Web.dnsbl.sorbs.net
Wormrbl.imp.ch
Xbl.spamhaus.org
Zen.spamhaus.org
