We check over 50 DNS-based anti-spam databases. DNSBL is a software mechanism created in the attempt of stopping email spam. There are dozens of such systems, which use different criteria to list or delist IP addresses. The operation of DNSBL systems is controversial as they can be used by various organisations to impose online censorship.
Enter the IP address in the text box above and press the Check button in order to check IP blacklist. Your IP address may be blacklisted for several reasons, but mainly it is related to spam. If you send unsolicited emails or you share the IP address with someone that sends spam, then it's likely that the IP address is blacklisted at some point. Also, the IP addresses are blacklisted if they are used for other malicious activities on different sites.
Another reason for seeing your public IP address blacklisted is if you are using a proxy. Don't you know if you are using a proxy or not? Take the proxy check test. In order to remove your IP address from a blacklist you need to, firstly, make sure you eliminated the source of spam and, secondly, contact the blacklist administrator.
Depending on their policy, you may get your IP delisted. We only check public blacklist databases and show the results. We are not able to remove or request the removal of any IP address from these databases. Has your IP address been blocked by spam filters? Why is my IP address blacklisted? How can you get your IP address removed from blacklists? Important XMyIP.Written by Julia G. Posted in BlogEmail Deliverability. A blacklist is a real-time database of IP addresses or domains that have been known to send spam or malicious content.
Many Internet Service Providers consult the blacklist databases in order to filter emails sent to the users within their network. The result of having the sending IP address or domain on a blacklist can vary from being a small nuisance to a complete block of your email campaigns.
In order to have better deliverability, email marketers should have an understanding of why an IP or domain can get on a blacklist, what to do if the IP is blacklisted, and how to avoid getting the IP or domain on a blacklist. ISPs can use these databases when filtering emails from a sender. This is an important step to protect mailbox users from spam. Open relay servers, hosts on certain websites, email spamming software, etc.
Some blacklists add IP addresses and domains based on user reports of unsolicited emails, e. If the number of complaints is higher than the allowed threshold, mailbox providers may start filtering the emails to spam folders or blocking the emails entirely.
Poor email list hygiene can also lead to blacklisting issues. Sending messages to old or inactive email addresses that could have been turned into spam traps, or harvested email addresses that are potential spam traps is destructive to your sender reputation. Recycled spam traps.
These are email addresses that were valid email accounts but have not been engaged with any message for a long time.
Email messages sent to these addresses are typically returned by the receiving server for a year or more before the recycled email accounts are reactivated as spam trap addresses. Pristine traps. These are email addresses that are set up by anti-spam organizations and ISPs with the only purpose to determine spammers.
They have never been used to sign up to an email list. Pristine traps most commonly get on mailing lists when senders purchase, rent, or harvest addresses. Read this page whitepaper to learn about deliverability issues caused by spam traps and what to do if you are already blocked. Download PDF. To save time, you can run a spam report with GlockApps. The report will show your email placement with different ISP and blacklist listings.
GlockApps also checks the domains used in links in the message content against domain blacklists. Another good idea is to analyze your bounce emails. If your deliverability is impacted by the blacklisted IP or domain, you will most likely receive a bounce email notification. The bounce error description will tell that your email was rejected because of an IP or domain listed on a blacklist.Summary: Office requires connectivity to the Internet.
This moratorium is intended to provide customer IT teams with confidence and simplicity in implementing recommended network optimizations for work-from-home Office scenarios. Changes within other endpoint categories will occur as usual.
During this period, customers can use Office Optimize category service endpoint definitions in a static manner to perform targeted network optimizations such as bandwidth reservations or split tunnel VPN configuration with minimal risk to Office connectivity due to cloud-side network changes.
This new service will help you configure and update network perimeter devices such as firewalls and proxy servers. You can download the list of endpoints, the current version of the list, or specific changes. This service replaces the XML document linked from this page, which was deprecated on October 2, To try out this new service, go to Web service.
Government DoD Office U. Government GCC High. Start with Managing Office endpoints to understand our recommendations for managing network connectivity using this data. Endpoints data is updated at the beginning of each month with new IP Addresses and URLs published 30 days in advance of being active. This allows for customers who do not yet have automated updates to complete their processes before new connectivity is required.
Endpoints may also be updated during the month if needed to address support escalations, security incidents, or other immediate operational requirements. The data shown on this page below is all generated from the REST-based web services. If you are using a script or a network device to access this data, you should go to the Web service directly.
Endpoint data below lists requirements for connectivity from a user's machine to Office It does not include network connections from Microsoft into a customer network, sometimes called hybrid or inbound network connections. See Additional endpoints for more information. The endpoints are grouped into four service areas.
The first three service areas can be independently selected for connectivity. The fourth service area is a common dependency called Microsoft Common and Office and must always have network connectivity. ID : The ID number of the row, also known as an endpoint set. This ID is the same as is returned by the web service for the endpoint set. Category : Shows whether the endpoint set is categorized as "Optimize", "Allow", or "Default". This column also lists which endpoint sets are required to have network connectivity.
For endpoint sets which are not required to have network connectivity, we provide notes in this field to indicate what functionality would be missing if the endpoint set is blocked. If you are excluding an entire service area, the endpoint sets listed as required do not require connectivity.
The BGP community that includes the route prefixes shown aligns with the service area listed.Each blacklist uses its own criteria for listing IP addresses of email spammers. Those criteria can include a variety of factors: technical, policy, and evidence-based. Technical listings occur mostly because of mail server configuration issues missing or incorrect reverse DNS records, missing or incorrect banner greetings, and mail servers operating within a suspicious range of IP addresses.
Evidence-based listings are those where the server has received direct or indirect evidence that the sending IP address has been involved in sending unsolicited emails.
Mailbox providers tend to protect their users from spam and choose which of the blacklists they use. To determine whether or not an incoming email is spam, mailbox providers look at various characteristics of the email including the IP address the email is sent from.
If the IP address from which the email was sent is on an IP blacklist that a mailbox provider uses, the mailbox provider might filter the email as spam, bounce the email or drop it entirely. All blacklists are not created equally. There are major blacklists, for example, Spamhaus, that is notoriously difficult to get off of.
Large mailbox providers typically use big blacklists like Spamhaus, whereas smaller mailbox providers typically use small local blacklists which may not impact your email deliverability any way.
And a service that asks you to pay for delisting or does not accept delist requests is unlikely to be used by major mailbox providers. If your sending is impacted by the blacklisting of your sending IP address, you will most likely receive a bounce notification that contains a message indicating that your email was rejected because of a listing on a blacklist. In most cases, the bounce message includes the name or URL of the blacklist. An example of this type of message is. The GlockApps Bounce Monitor can help you determine whether or not your messages are rejected due to blacklist listings.
It gives in-depth bounce email analytics by the bounce type, bounce reason, sender domain, sender email address and provider that rejected the message. You can easily understand how many blocked messages you received, what the block reason was and which provider blocked your messages because your IP is blacklisted. If you do not see this type of message in your bounce notifications, it is unlikely that a blacklist is impacting your deliverability.
They carefully and continually monitor the reputation of their IP address space and work closely with mailbox providers and blacklist operators to identify and resolve the listings.
Why is My IP Address Blacklisted ? (and How Do I fix it!)
The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. If you want to see which IP addresses are in use on a specific subnet then there are several different IP Address managers.
How to get a list of all valid IP addresses in a local network? Asked 7 years, 4 months ago. Active 7 months ago. Viewed 1. Is there a way to get a list of all valid IP addresses in a local network? I mean all IP addresses that each user is using in the network. Peter Mortensen Ahmadi M. Ahmadi 3, 4 4 gold badges 13 13 silver badges 22 22 bronze badges. Active Oldest Votes. Install nmapsudo apt-get install nmap then nmap -sP Lestrad 3 1 1 bronze badge.
Sunil Bojanapally Sunil Bojanapally Per the man page "In newer releases of nmap, -sP is known as -sn".Information is obtained from our worldwide network of honey pots. Please note: being listed on these pages does not necessarily mean an IP address is owned by a spammer. For example, it may have been hijacked from its true owner. If you believe an IP address is listed here in error, contact us and we will investigate.
To track harvesters and other malicious robots visiting your own website, sign up with Project Honey Pot today. It's fast, free, easy, and one of the ways you can help make the Internet a better, safer place. This page displays the top IPs by different categories. You may sort or limit this list by selecting from the menus below. See comment spammersdictionary attackersor mail servers from the same region. You may also lookup information on a specific IP address.
IP Address Blacklist Check
If you want to see a list of IPs specifically targeting your own websites simply join Project Honey Pot and add honey pots to the sites you want to monitor. An RSS feed for this page is available. Advertisements displayed on this page are not necessarily endorsed by Project Honey Pot. Link to this page: RSS for this page:.Sending out an email campaign can mean hours of work for you. For instance, you have to write copy, source images, format the message within your email service provider ESPchoose your segments, and finally, send the email.
A bad email address or full inbox can cause it to bouncea typo could send it to the wrong person, or a blacklist can prevent it from ever reaching an inbox at all. The occasional typo or bad email address can happen to anyone and is easily fixed. However, being listed on a blacklist is serious.
Even so, understanding how blacklists work can help you understand how email works—and what you should watch out for. A blacklist is a real-time list that identifies IP addresses or domains that are known to send spam. Very large ISPs have their own internal blacklists, but many use publicly available ones run by companies that specialize in this field. Understanding spam Keep in mind that spam has different definitions to different people. Spamhausthe operators of one of the biggest blacklists, has created a graphic to make it a bit easier to understand how and when a blacklist interacts with an email.
Your email will go through some tests to see if it should be sent to the inbox or filtered as spam. The actual rejection of an email will come down to the policies of the ISP, as a blacklist is just one of the tools used to decide if an email is legitimate or not.
In the graphic, you can see an email can be rejected, delivered, or flagged as questionable based on the information from the blacklist and the policies of the ISP.
The most popular blacklists are maintained by companies that specialize in doing so. While there are many lists online, these are some of the most widely used:. High spam complaints and bad email lists are all it takes for an IP address to be added to a blacklist. Here are some things that can lead to blacklisting:. There are hundreds of blacklists in the world and the chances are good your IP address is on at least one of them. Smaller blacklists are less likely to be used by big ISPs, and your address will probably drop off fairly quickly.
However, if you are on a blacklist, it could be an indicator that something is going wrong in your email marketing. The larger lists that are used by ISPs can have a bigger impact on your emails being delivered and your business in turn. Each of the major blacklist companies have information on their sites on how to be removed from their lists. Usually the process is fairly simple and straightforward, just be sure to do what they ask to clean up your emails and lists.
For smaller lists, if you continue to mail and not run into a lot of spam complaints the IP address should drop off on its own. But you may find your account blocked until you can clean up your lists. The best thing you can do for your email marketing is avoiding a blacklist in the first place. As we saw above, email content and lists are the primary cause of blacklisting.
One of the best ways to avoid an email blacklist is to provide a useful and relevant email experience for your customers. Assuming your lists are clean, your contacts are segmented properly, and your deliverability is high, you should follow basic email and design best practices to keep your engagement up. Your email subject line is the main factor in determining whether your messages are opened or ignored.
You need to sell the value of your email, but you only have about 50 characters to do it. Your best tactic to create a successful subject line is to use personalization. Even after opening your emails, customers are likely only skimming your content. You only have a handful of seconds to catch their attention, so utilize the inverted pyramid design. This design style naturally draws your audience from a large header image or headline into brief copy and down to a clear and distinct CTA.
This format is easy to scan and can help increase engagement. Your emails are designed on a computer. Chances are, though, your customers will be reading them on their cell phones.