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AlienVault OTX
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DNS Resolutions
Date
IP Address
2017-01-25
5.9.237.40
(
ClassC
)
2024-10-12
62.84.180.163
(
ClassC
)
Port 80
HTTP/1.1 301 Moved PermanentlyDate: Sat, 12 Oct 2024 00:25:47 GMTServer: ApacheLocation: https://www.rbl-dns.com/Content-Length: 232Content-Type: text/html; charsetiso-8859-1 !DOCTYPE HTML PUBLIC -//IETF//DTD HTML 2.0//EN>html>head>title>301 Moved Permanently/title>/head>body>h1>Moved Permanently/h1>p>The document has moved a hrefhttps://www.rbl-dns.com/>here/a>./p>/body>/html>
Port 443
HTTP/1.1 200 OKDate: Sat, 12 Oct 2024 00:25:47 GMTServer: ApacheX-Powered-By: PHP/5.6.40Upgrade: h2,h2cConnection: UpgradeTransfer-Encoding: chunkedContent-Type: text/html; charsetUTF-8 !DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd>html xmlnshttp://www.w3.org/1999/xhtml>head>meta http-equivContent-Type contenttext/html; charsetutf-8> title>The FREE Global Real Time Black & White List DNSBL, RBL, DNSWL | Email Spam Protection, Junk Email Filter, by RBL-DNS.com/title> meta namekeywords contentspam protection, email filter, DNSBL services, Black List, White List, Spam protection, DNSWL, DNS White List, DNS Black List, block list, block spam, bulk email, junk email, spam filtering, spam filters, spam services, spam virus, bulk email, spammers, stop spam /> meta namedescription contentRBL-DNS, FREE Real Time Black & White List Services, RBL, DNSBL, SURBL, DNSWL, Spam Protection, Junk Email Filter /> meta nameresource-type contentdocument> meta namerobots contentindex,follow> meta namerevisit-after content15 Days> meta nameclassification contentDNSBL> meta namedistribution contentGLOBAL> meta namerating contentSAFE FOR KIDS> link relshortcut icon typeimage/x-icon href/favicon.ico /> link hrefstyle.css relstylesheet typetext/css /> script languagejavascript typetext/javascript>function clearText(field){if (field.defaultValue field.value) field.value ;else if (field.value ) field.value field.defaultValue;} /script>/head>body>div idbackground_section_top>div classcontainer>div idheader>div idlogo>img src/images/RBLLOGO.png>h3>FREE DNSBL Servicesbr>DNSBL Usage: bl.rbl-dns.com/h3>/div>div idsearch_box>/div>div idmenu>div idmenu_bg_l>/div>div idmenu_bg_r>ul> li classcurrent>a href/>b>MAINPAGE/b>/a>/li> li>a hrefspam>b>SPAM LIST/b>/a>/li> li>a hrefdul>b>DUL LIST/b>/a>/li> li>a hrefwhite>b>WHITE LIST/b>/a>/li> li>a hrefprivate>b>GLOBAL MIRRORS/b>/a>/li> li>a hrefcontact>b>CONTACT US/b>/a>/li>/ul>/div>/div>/div>/div>/div>div idbackground_section_middle>div classcontainer>div idcontent_area>div idleft>div classsection>div classsection_top_pc>Database Check/div>div classsection_middle>ul>li>a href/bl>font size3>Black List Lookup/font>/a>/li>li>a href/wl>font size3>White List Lookup/font>/a>/li>/ul> p>b>Your IP: 52.40.234.105/b>div classcleaner_with_height>/div>/div>div classsection_bottom>/div>/div>div classsection>div classsection_top_pic>b>RBL-DNS.com/b>/div>div classsection_middle>table border0 cellpadding0 cellspacing3 width100%> tbody> tr> td classsmall_gray_text valigntop> /td> /tr> tr> td classsmall_gray_text valigntop> table border0 cellpadding0 cellspacing3 width100%> tbody> tr> td classsmall_gray_text valigntop> font size3>b>Free DNSBL Services/b>/td> /tr> tr> td classsmall_gray_text valigntop> p>font size2>Use of the RBL-DNS DNSBLs is free of charge for everybody by setting your mail servers DNSBL feature toquery b>bl.rbl-dns.com/b>/font> p>font size3>b>Professional DNSBL/b>/p> /td> /tr> /tbody> /table> p>font size2>Synchonize option isavailable for any email provider./p>ul>li>a href/private>font size2>b>read more .../b>/a>/font>/li>/ul> /font> /td> /tr> /tbody>/table>div classcleaner_with_height> /div>/div>div classsection_bottom>/div>/div>/div>div idright>h1>DNSBL / RBL Services/h1>p>DNSBL/ RBL Services img srcimages/image.jpg alignright height113 hspace10 vspace10 width160>(b>DNSB/b>lackb>L/b>istor b>DNS B/b>lackhole b>L/b>istor b>R/b>ealtime b>B/b>lackhole b>L/b>ist)A system for identifying spammers based on their IP addresses. Mostmail servers are able to query a DNSBL to determine if a specific IPaddress is on the list. p>/p> b>p>DNSBL/RBL/b> uses the DNS protocol to query the well-known IP addresses which have been complaint to send worm, virus & junk mail. Using RBLs toprevent junk, virus & worm email is very effective. Thealgorithm of RBLs is different with that of Anti-Spam and Anti-Virusservices as RBLs works based on IP address, while Anti-Spam andAnti-Virus services work based on the message content. p>The RBL-DNS (RBL)utilizes a standard DNSBL (Domain Name System Block List)implementation that can be used to reduce spam volume on many popularemail systems. DNSBL systems list IP addresses, often those that havebeen observed by the list operator to be sending spam or hostingspammers. By adding DNSBL entries to an email server configuration,those email servers can either reject connection attempts from listedIP addresses or use that listing to apply appropriate filtering policy. /p> p>It is important to notethat a DNSBL cannot stop anyone from sending email. A DNSBL onlyprevents delivery at the receiving end at the receivers instruction.DNSBLs are strictly defensive tools, and they cannot do any offensivedamage such as denial of service attacks. /p> h1>What is RBL Blacklist?/h1>p>An RBL blacklist, also known by several other names including DNSBL (Domain Name System Blacklist), Remote Block List (RBL), Realtime Blackhole List (RBL), or simply Spam Blacklist or Block List, is a constantly updated list of IP addresses that are known to send spam or other malicious content.br>If an IP address is identified as a source of spam or malware, it gets added to an RBL blacklist. This can happen due to intentional spamming or even accidental configuration issues on a mail server.br>When you send an email, your servers IP address is checked against these RBLs by the receiving server. If your IP is listed, your email might get rejected or marked as spam. being on an RBL blacklist can seriously affect your email deliverability, meaning your legitimate emails might not reach their intended recipients.br>Spam is any unsolicited, irrelevant, or inappropriate email sent to a large number of recipients without their consent. For example, emails sent to recipients who have not opted-in or given explicit consent to receive communications from the sender can constitute spam. br>If you’re a cold email marketer, avoiding your emails being marked as spam becomes even trickier. However, a few strategies can help you avoid being flagged by these blocklists (more on this later).p>h1>What Makes Your IP Being Blacklisted?/h1>p>Getting your IP blacklisted can be due to several reasons. Here’re a few common reasons that can put your emails in the suspicious position:br>b>- Complaints from Recipients:/b> If a significant number of people who receive your emails mark them as spam, email providers consider it a strong indicator of unwanted emails. This can lead to your IP being blacklisted to protect their users from potential spammers.br> b>- Poor Contact Database:/b> Sending emails to invalid or inactive addresses is a red flag for email providers. These addresses might be old, misspelled, or simply non-existent. A high bounce rate (emails that fail to deliver) due to a poor contact list suggests spammy practices and could trigger blacklisting. Learn more about how list quality can affect your inbox placement. br>b>- Spamtraps:/b> These are strategically placed email addresses designed to catch spammers. They are typically never used by real people and only exist to collect spam emails. Sending emails to even a single spamtrap can land your IP on a blacklist because its a clear sign of someone trying to distribute unsolicited emails.br>b>- New IP:/b> Email providers are more cautious about new IPs because they have no established reputation. To avoid suspicion, consistently send legitimate emails and build a positive sending history to establish trust with email providers.br>b>- High Sending Volume:/b> Sending a large number of emails in a short period can be mistaken for a spam campaign. Email providers might interpret this sudden surge as an attempt to distribute unwanted emails and blacklist your IP to protect their users from potential spam attacks.table border0 width100% cellspacing0 cellpadding0> tr> td width100% height15 bgcolor#1f5c7b> /td> /tr> /table> table border0 width100% cellspacing0 cellpadding0> tr> td width100% height10 bgcolor#ffffff> /td> /tr> /table>h1>DNSBL Usage/h1>P> The DNSBL / RBL can bequeried directly as b>bl.rbl-dns.com/b>P>Currently, the following zones exist:P>P>- b>bl.rbl-dns.com/b> combination of spam.rbl-dns.com and dul.rbl-dns.com in a single zone.br>- b>spam.rbl-dns.com/b> (Open Relay, Hijacked PCs, Spam Source)br>- b>dul.rbl-dns.com/b> (Dynamic, ADSL, Cable, no PTR Networks)br>table border0 width100% cellspacing0 cellpadding0> tr> td width100% height15 bgcolor#1f5c7b> /td> /tr> /table> table border0 width100% cellspacing0 cellpadding0> tr> td width100% height10 bgcolor#ffffff> /td> /tr> /table>h1>How to use RBL-DNS Services/h1>P>Doing a DNSBL lookup on a message at SMTP connect time is cheap in hardware cycles and system time. Your DNS server may even have it cached from the last time the spammer tried.p alignjustify>Mail rejected by a DNSBL during delivery is not silently discarded or lost. A DNSBL realtime rejection creates a delivery status notification to the sender identifying the cause of the rejection, thereby allowing troubleshooting on the senders end.p alignjustify>By rejecting the connection attempt in real-time, a DNSBL also avoids any problems associated with an email system accepting delivery, closing the connection, and then trying to return the mail to a potentially forged address after the message is determined to be spam.p alignjustify>DNS is inherently very efficient, using minimal amounts of bandwidth. Using BL will use much less bandwidth than having to accept every spam and virus email sent to your email system. By rejecting these spam messages during the SMTP connection, no further data is sent thereby reducing overall bandwidth requirements. DNS caching by your local DNS server also prevents redundant queries from utilizing excessive bandwidth. p alignjustify>The use of the RBL-DNS DNSBLs is free of charge for low-volume non-commercial use.br>p alignjustify>For professional use, internet ISPs, or hosting providers, we can provide your unlimited or dedicated realtime access to all RBL-DNS DNSBLs from your network.p alignjustify>Free mirror service is provided to sites who are willing to host a public mirror (serving data to other free users).p>a hrefservices>span classread_text>read more/span>/a> /p> /div>/p>/div>/div>/div>/div>div idbackground_section_bottom>div classcontainer>div idfooter_section>center>font color#FFFFFF>Copyright © RBL-DNS.com. All rights reserved./font>/div>/div>/body>/html>
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