The LASHBACK unsubscribe blacklist (UBL) and its role in email marketing Have been exposed or encountered a directory harvesting attack? If not, kindly not that they are on the way and you need sufficient protection as soon as possible. Locations within a computer where files are stored are basically what we are referring to us directories here. They are otherwise known as folders in the graphic user interface (GUI). Directory harvesting attack however has a slightly different meaning in computing and especially when it comes to spam related emails. We explore in great details this aspect in this article in relation to LASHBACK and how to delist from LASHBACK. Directory harvest attack In order to get a general understanding of what a directory harvest attack is, we need to know what a dictionary attack is. The two terms are almost similar and it is common for someone to confuse between the two. A dictionary attack is most commonly used in computer security environments and in analyzing crypts. It refers to some act of using forced attack to decode a cipher or an encryption. The attacks are carried out so many times so that they are […]

Having one’s IP address flagged for any reason is no good news, especially when the reason behind it is not clear. One of these blacklists, the Return Path Blocklist hosted by the Sender Score Reputation Network, ranks IP addresses based on Sender Score –a measure of its reputation. When a sender score is low, then the IP address may be blacklisted, and emails from that IP are not delivered. If your IP address has been blacklisted, here’s how to delist from Sender Score Reputation Network What is a Sender Score? Before going on to talk about how to delist from Sender Score Reputation Network, it’ll make sense to first look at what the Sender score is all about. This is a score in the range of 0 to 100, ranking the reputation of an IP address from 0 (as the worst) to 100 (as excellent). This information is gathered from Internet Service Providers (ISPs), and recipients’ responses to emails from that IP address i.e., emails from that IP are frequently being tagged as spam. This score is calculated over an average of thirty days. What causes a low Sender Score? Now that we have seen […]

One of the worst nightmares to have as an email administrator is to have his or her mail server flagged for spam. There are many spams one may be flagged for, and RATS Spam is one of them. For those who have this problem and are at loss as to how to delist from RATS spam; this article explains how. How to delist from RATS SPAM RATS spam refers to an Internet Protocol (IP) address or a group of IP addresses that have been blacklisted for being abusive, in other terms, the IP address does not fit in the common kinds of threats. This can occur due to compromised servers or virus traffic arising from one’s servers as is the case in open relays. Since these do not dispatch a lot of data, it could be a false threat and is only used if the server supports a stricter stance. It normally occurs when a server has been observed to be attempting too many deliveries and occasionally normal email servers due to FTP bounce attacks. This implies that one’s IP address has been defaulted for sending unsolicited bulk email, whether or not they arise from […]

Bаrrасudа Cеntrаl mаіntаіnѕ a hіѕtоrу оf IP аddrеѕѕеѕ fоr bоth known spammers аѕ wеll аѕ ѕеndеrѕ wіth gооd еmаіl рrасtісеѕ. Thіѕ іnfоrmаtіоn соntrіbutеѕ tо thе Barracuda Rерutаtіоn Sуѕtеm, whісh gіvеѕ the Bаrrасudа Sраm & Vіruѕ Fіrеwаll thе аbіlіtу tо block or аllоw a message based оn thе ѕеndеr’ѕ IP address. In аddіtіоn tо IP rерutаtіоn, thе Barracuda Cеntrаl team maintains a reputation оn URLѕ, whісh gives the Bаrrасudа Sраm & Virus Fіrеwаll the ability tо ԛuісklу blосk аn еmаіl bаѕеd оn a poorly-rated URL contained іn the mеѕѕаgе. Bу соmbіnіng both the IP аnd rерutаtіоn dаtа, Barracuda Nеtwоrkѕ can еаѕіlу determine whеthеr a mеѕѕаgе is a ѕраm or lеgіtіmаtе еmаіl. Onсе іdеntіfіеd, Bаrrасudа Central саn іmрlеmеnt соuntеrmеаѕurеѕ to mitigate thеѕе thrеаtѕ. Barracuda Reputation іѕ оnе of the mаnу tесhnіԛuеѕ Barracuda Networks еmрlоуѕ wіthіn thе Barracuda Sраm & Vіruѕ Fіrеwаll tо reinforce its superior 95 реrсеnt ѕраm ассurасу rate. The Barracuda Reputation System іѕ a real-time dаtаbаѕе оf IP addresses thаt have a “рооr” rерutаtіоn fоr ѕеndіng valid emails. Bаrrасudа Cеntrаl maintains аnd manually vеrіfіеѕ аll IP addresses mаrkеd аѕ “рооr” on thе Barracuda Rерutаtіоn System. Barracuda Central рrоvіdеѕ аn оnlіnе block lіѕt of IP аddrеѕѕеѕ […]

Have you ever had your IP address listed as spam? Would you feel happy if you are to experience a blacklist on your IP address? These are some experiences nobody will like to have concerning sending or receiving mails because it can affect your personal life or business and make it difficult to relate with family and business associates alike. This could, in turn, cost you losses, both financially and otherwise, leading to other problems in the future. It is, therefore, a matter to be handled with utmost urgency. Having your IP address blacklisted on HostKarma Black can actually cost more problems than you can imagine. These problems can start with your emails being prevented from getting to its intended receiver. What if it is a business email that could bring you profit, the business may just go with the wind if solution is not sought out immediately. This may lead to some inconvenience, but be sure it would be worth all the stress if you are delisted. The good news is there is a way to tackle this problem. So this article actually talks about how to delist from HostKarma Black. There are specific […]

Blacklisting is one of the significant problems facing IP address users all over the world. IP addresses can be blocked for the slightest of reasons, even the ones that are unknown to the user. Nobody wants their IP address to be blocked or reported as a scam. It is really an ugly experience, and it must be avoided at all costs. Imagine sending a mail to a business associate or family member, only to be told that the mail cannot be sent due to reasons you may not know about. It could lead to losses in business or even create strains in family bonds. This article how to delist from HIL will give an insight into what to expect when the IP address is blocked and how to solve it. HIL could block your IP address for several reasons, and none is pleasant to the owner of such an IP address. Blocking an IP address simply means the owner is no longer able to send or receive mails on that particular IP address. It may be very discomforting, and there is a lot of stress to go with it. However, all hope is not lost […]

The Backscatterer blacklist іnсludеѕ IP аddrеѕѕеѕ that ѕеnd mіѕdіrесtеd bounces оr аutо-rеѕроnѕе messages tо forged ѕеndеr еmаіl аddrеѕѕеѕ. Thеѕе bounces оr аutо-rеѕроnѕе messages may bе sent tо Rеturn-раth, Frоm or Rерlу-tо dоmаіnѕ thаt wеrе forged as thе sender оf ѕраm mеѕѕаgеѕ. Bоunсе backscatter іѕ саuѕеd when thе rесеіvіng server ассерtѕ a mеѕѕаgе fоr dеlіvеrу but lаtеr dеtеrmіnеѕ that thе message саnnоt bе delivered. Thе rесеіvіng server thеn sends a bоunсе mеѕѕаgе bасk to thе forged sender аddrеѕѕ, indicating nоn-dеlіvеrу. Autо-rеѕроnѕе bасkѕсаttеr is саuѕеd bу sending notification еmаіlѕ such аѕ оut-оf-оffісе mеѕѕаgеѕ оr оthеr notifications to thе fоrgеd ѕеndеr аddrеѕѕ. How уоur ѕеrvеr handles thеѕе types оf bоunсеѕ can cause аll ѕоrtѕ оf problems, especially іf уоur ѕеrvеr іѕ hit wіth a dіrесtоrу-hаrvеѕtіng attack. Backscatterer lіѕtіngѕ оссur at thе IP аddrеѕѕ lеvеl. The іmрасt оn deliverability іѕ mіnіmаl. Emаіl ѕеrvеr blасklіѕtіng creates bіg рrоblеmѕ whіlе sending mails. And, it саuѕеѕ mаіl tо fail wіth 550 errors. Althоugh thеrе are many blacklists, gеttіng іntо thе Backscatterer blacklist саn rеѕult in еmаіl fаіlurе up tо 4 weeks. That’s why mаnу people approach them tо avoid thеіr server from gеttіng іntо thе Bасkѕсаttеrеr blасklіѕt аѕ раrt оf their Technical […]

Criteria Of Blacklisting In Ivmsip And Other Similar Platforms In Computing There are times we struggle so much to make sure that our servers not sending spam emails to other people. This is because we probably fear that we may end up in a listing of a certain platform that may give us problem in the delisting process. Talking of delisting process, there are several reasons as to why you will want to delist from any blacklist platform. Different such blacklist have different reasons as to why they will blacklist a given IP address or domain names and how to delist from ivmSIP, or the other thousands such platforms largely depend upon complete solving of the underlying platform. The reasons for blacklisting can be categorized into those which are based on evidence, those based on policy and those based on technical issues within ones server. Another category could be spontaneous triggers all of which we are considering in this article. 1. Evidence-based criteria These platforms use evidence to blacklist IP addresses or domain names that are involved in sending or are receiving spam. The evidence used can either be direct where the platforms can actually […]

Introduction The terms RATS-NoPtr could be referred a group of Internet Protocol (IP) addresses defaulted for dispatching multiple offensive volumes of packet data or attempting numerous invalid users at ISP and mail servers, with no personal configured reverse DNS. The reverse DNS (rDNS) can be regarded as the other side of the previously known “forward DNS lookup” where the particular hostname DNS IP address is queried. In rDNS, the precise IP address for the hostname DNS is queried, which thus return the hostname of an IP address, which is identified as a practice often exploited by computer bots and spammers. This implies that each email server is configured to verify if an incoming email is with both forward and reverse DNS entries before accepting the email. If an incoming email is found of lacking the rDNS from its IP address, such email is conditioned to be rejected by the mail server, and further blacklist the IP address from further connection, giving to the terms “RATS NoPtr” – the absence of the reverse DNS in the IP address of an email server, whose operation is similar to computer bots—being labelled as RATS-NoPtr implies lack of rDNS, […]

Getting your IP address blacklisted is a bad thing for individuals as well as most businesses. Mails from a blacklisted IP address are flagged as spam which makes it difficult for the consumer to get such mails. This has can be a big problem especially if the success of a transaction relies on the delivery of the mail to the client. One of the common blacklists which can be responsible for the failure of your mails is the RATS Dyna. A blacklisted IP address on RATS Dyna prevents your mail from getting to your subscribers. Mails from a blacklisted IP addresses on RATS Dyna are flagged and treated as spam. However, it is possible to get off this blacklist. This article is aimed at teaching you how to delist from RATS Dyna. What is RATS Dyna? Do you know about RATS Dyna? Yes, it is a blacklist containing number of IP addresses that have so much invalid users on mail servers. An IP address which doesn’t resolve back to the same host as specified in their MX record is blacklisted in RATS Dyna. The IP addresses which have been listed here are consistently monitored to […]