{"id":3597,"date":"2026-08-13T01:28:26","date_gmt":"2026-08-13T01:28:26","guid":{"rendered":"https:\/\/www.warmy.io\/blog\/ivmuri-blacklist-understanding-checking-and-resolving-listings\/"},"modified":"2026-08-13T01:28:29","modified_gmt":"2026-08-13T01:28:29","slug":"ivmuri-blacklist-understanding-checking-and-resolving-listings","status":"publish","type":"post","link":"https:\/\/www.warmy.io\/blog\/ivmuri-blacklist-understanding-checking-and-resolving-listings\/","title":{"rendered":"ivmURI Blacklist: How to check a listing and get your domain delisted"},"content":{"rendered":"\n<p><strong>TL;DR<\/strong>: ivmURI is a URI DNSBL operated by Invaluement. It lists domain names, plus a small number of IPs, found inside the clickable links in the body of spam. It does not list the IP your mail server sends from. As of August 2026, the list answers DNS queries under a new label, ivmLinkingDomains, with ivmURI identified as the previous name. Invaluement&#8217;s own website still uses ivmURI throughout.<\/p>\n\n\n\n<p>Search for ivmURI and you will find page after page explaining how to remove your <strong>IP address<\/strong> from it. That framing is wrong, and it sends people down the wrong remediation path for days.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.invaluement.com\/\" rel=\"noopener\" target=\"_blank\" rel=\"noopener noreferrer\">Invaluement<\/a> describes ivmURI as a <a href=\"https:\/\/www.warmy.io\/blog\/uribl-blacklist-what-it-is-and-how-to-remove-your-ip-from-it\/\" data-type=\"post\" data-id=\"3737\" target=\"_blank\" rel=\"noopener noreferrer\">URI DNSBL<\/a> in the same family as surbl.org and uribl.com. Unlike a conventional <a href=\"https:\/\/www.warmy.io\/blog\/real-time-blackhole-list-rbl-how-to-remove-your-ip-from-it\/\" data-type=\"post\" data-id=\"3572\" target=\"_blank\" rel=\"noopener noreferrer\">RBL<\/a>, it is sometimes called a domain DNSBL, and it contains domain names and a handful of IPs that were found inside the clickable links in spam messages.\u00a0<\/p>\n\n\n\n<p>The company notes that these domains rarely appear in legitimate mail, with the occasional exception of an innocent domain that criminals have hijacked, and that most listed domains are owned by spammers outright.<\/p>\n\n\n\n<p>Read that again, because the operational consequence is significant: <strong>rotating your sending IP does nothing for an ivmURI listing.<\/strong> If a domain in your message body is listed, every campaign that references that domain carries the same risk regardless of where it was sent from.<\/p>\n\n\n\n<p>Invaluement makes the case for why this matters. A large share of modern spam is relayed through the MTAs of very large ISPs and hosting providers, where blocking the sending IP would take down enormous volumes of legitimate mail alongside it. Blocking the spammer&#8217;s link domain does not have that problem. That is the gap ivmURI was built to fill.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>The three Invaluement lists, side by side<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>List<\/strong><\/th><th><strong>What it inspects<\/strong><\/th><th><strong>Listing unit<\/strong><\/th><th><strong>What a listing means<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>ivmURI<\/strong> (now ivmLinkingDomains)<\/td><td>Clickable links in the message body<\/td><td>Domain or hostname, plus some IPs<\/td><td>A domain you link to has appeared in spam<\/td><\/tr><tr><td><strong>ivmSIP<\/strong><\/td><td>The connecting IP<\/td><td>Single IP address<\/td><td>That IP sends only spam, or an extremely high percentage of it<\/td><\/tr><tr><td><strong>ivmSIP\/24<\/strong><\/td><td>The connecting IP<\/td><td>\/24 subnet<\/td><td>A spam pattern was detected across that IP range<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>ivmSIP focuses on botnets, snowshoe operations, irresponsible ESPs, and occasional short-term listings of otherwise legitimate senders with a compromised system. ivmSIP\/24 preemptively lists spammer subnets and was among the first anti-spam lists to target snowshoe spam specifically, before Spamhaus launched CSS.<\/p>\n\n\n\n<p>If your bounce names ivmSIP or ivmSIP\/24, you have a sending infrastructure problem. If it names ivmURI, you have a link problem. Those are different investigations with different owners, and conflating them is the most expensive mistake in this whole process.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>New: The list now identifies itself as ivmLinkingDomains<\/strong><\/h2>\n\n\n\n<p>Query the list today and the TXT record that comes back no longer says ivmURI. It says the item is blocked by <strong>ivmLinkingDomains<\/strong>, noting that this was previously called ivmURI, and points to a lookup URL for the specific item.&nbsp;<\/p>\n\n\n\n<p>Public DNSBL monitoring at <a href=\"https:\/\/www.warmy.io\/blog\/multirbl-blacklist-a-comprehensive-guide-to-delisting\/\" data-type=\"post\" data-id=\"3736\" target=\"_blank\" rel=\"noopener noreferrer\">MultiRBL<\/a> confirms the same response pattern on live listings recorded through August 2026, alongside the standard 127.0.0.2 A record.<\/p>\n\n\n\n<p>Invaluement&#8217;s website has not been updated to match. The homepage, the navigation, the delist page, and the company&#8217;s own description of its three lists all still say ivmURI, and the URL structure has not changed.<\/p>\n\n\n\n<p>What this means in practice:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Do not treat &#8220;ivmLinkingDomains&#8221; in a bounce as an unfamiliar blocklist.<\/strong> It is ivmURI. Same operator, same zone, same delist path.<\/li>\n\n\n\n<li><strong>Search your logs for both strings.<\/strong> If you have alerting or ticket automation that matches on ivmURI, it will miss the new label.<\/li>\n\n\n\n<li><strong>The rename describes the list more honestly than the old one did.<\/strong> &#8220;URI&#8221; implies full URLs. What the list actually holds are the domains doing the linking. The new name says so.<\/li>\n<\/ul>\n\n\n\n<p>Treat this as a live detail rather than a settled one. Verify against the DNS response you actually receive before quoting it to a client.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Why a small paid list punches above its weight<\/strong><\/h2>\n\n\n\n<p>ivmURI is not a household name like Spamhaus. It still matters, for five reasons.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>It is licensed, not public.<\/strong> Invaluement sells access as a subscription with direct DNS query or rsync delivery, and query hostnames are assigned per subscriber. Monitoring services that carry it, such as HetrixTools, cannot publish the query hostname because the zone is private. You cannot casually dig against it the way you can with a free list.<\/li>\n\n\n\n<li><strong>It is embedded inside products.<\/strong> Because it slots into an existing spam filter as an add-on, the receivers acting on your listing are often not naming Invaluement anywhere in the rejection. You see filtering, not an explanation.<\/li>\n\n\n\n<li><strong>Its false positive rate is the selling point.<\/strong> Invaluement positions the list around industry-leading low false positives, and third parties have echoed that. The CBL has publicly described both ivmURI and ivmSIP as solidly operated with high effectiveness and very few false positives. Filters that trust a list act on it decisively. A low-FP reputation is exactly what makes a listing expensive.<\/li>\n\n\n\n<li><strong>It lists early.<\/strong> Invaluement&#8217;s claim is that ivmURI catches many spammer domains before other domain and URI lists do. If you are listed here and nowhere else, that is not evidence of a mistake. It is often evidence that you are early.<\/li>\n\n\n\n<li><strong>There is no notification.<\/strong> Invaluement does not tell you when your domain is added. Combine that with silent receiver-side filtering and the realistic detection window is however long it takes you to notice open rates sagging, unless you are monitoring.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How to tell whether you are listed in <\/strong><strong>ivmLinkingDomains<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. Read the rejection text carefully<\/strong><\/h3>\n\n\n\n<p>Invaluement rejections vary by receiver, but a 554 refusal referencing an invaluement hostname or the invaluement.com domain is the clearest signal. For the IP lists, an SMTP rejection typically names the blocking zone directly.&nbsp;<\/p>\n\n\n\n<p>For ivmURI, the reference is often the TXT string with the item-specific lookup URL, which tells you exactly which domain was matched.<\/p>\n\n\n\n<p>Save the full NDR or DSN before your retention policy clears it. It carries the rejecting system, the response code, the listed item, and the lookup reference. You will want all four in the delist request.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. Check your spam filter headers<\/strong><\/h3>\n\n\n\n<p>If you or your recipient run Apache SpamAssassin, the URIDNSBL plugin handles URI blocklist lookups through urirhssub rules, and administrators conventionally name the Invaluement rules URIBL_IVMURI for the URI list and RCVD_IN_IVMSIP for the sending-IP list. Those strings show up in X-Spam-Status and X-Spam-Report.<\/p>\n\n\n\n<p>That is a useful diagnostic on inbound mail you control, and a useful thing to ask a friendly recipient to check when you suspect a listing but have no bounce.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. Use Invaluement&#8217;s own lookup<\/strong><\/h3>\n\n\n\n<p>Invaluement runs two lookup paths from its site. The <strong>fast lookup<\/strong> page is for research and returns a status without opening a case. The <strong>delist request<\/strong> page runs the same check and then generates removal instructions if the item is listed. Both accept a domain or an IP.<\/p>\n\n\n\n<p>Check the domain, not just the second-level registrable name. The list holds hostnames. links.example.com and example.com are separate items.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. Run a broad multi-list check<\/strong><\/h3>\n\n\n\n<p>A single-list lookup tells you whether you are on ivmURI. It does not tell you whether the ivmURI listing is one symptom of a wider reputation problem, which changes both the diagnosis and the fix.<\/p>\n\n\n\n<p>Warmy&#8217;s free <a href=\"https:\/\/www.warmy.io\/free-tools\/email-deliverability-test\" target=\"_blank\" rel=\"noopener noreferrer\">Email Deliverability Test<\/a> checks your domain and IP against the major blacklists and returns inbox placement data alongside it, so you can see whether the listing is isolated or part of a pattern. Public tools such as MultiRBL and MXToolbox cover ivmURI as well.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"720\" src=\"https:\/\/www.warmy.io\/blog\/wp-content\/uploads\/2024\/07\/Deliverability-test-dashboard.png\" alt=\"Deliverability test dashboard\" class=\"wp-image-7032\" title=\"\" srcset=\"https:\/\/www.warmy.io\/blog\/wp-content\/uploads\/2024\/07\/Deliverability-test-dashboard.png 960w, https:\/\/www.warmy.io\/blog\/wp-content\/uploads\/2024\/07\/Deliverability-test-dashboard-300x225.png 300w, https:\/\/www.warmy.io\/blog\/wp-content\/uploads\/2024\/07\/Deliverability-test-dashboard-768x576.png 768w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>The link inventory: The step nearly everyone skips<\/strong><\/h2>\n\n\n\n<p>Before you touch the delist form, build a complete inventory of every domain your message references. This is the single highest-value hour in the whole process, and it is where clean-IP-blocked-mail cases get solved.<\/p>\n\n\n\n<p>Pull an actual sent campaign, not a template, and take both the rendered body and the raw HTML. Then list:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>The click-tracking domain.<\/strong> Usually a subdomain like links. or click. or mail., and frequently the culprit. A tracking host is a distinct domain with its own reputation, and it typically has far less legitimate history than your brand domain.<\/li>\n\n\n\n<li><strong>Every redirect hop.<\/strong> Follow each link all the way to its final destination. A clean visible URL can pass through a shortener, an affiliate hop, or a compromised intermediate page.<\/li>\n\n\n\n<li><strong>Image and asset hosts.<\/strong> CDN domains, hosted image buckets, signature graphics.<\/li>\n\n\n\n<li><strong>The unsubscribe and preference center domain.<\/strong> Often a third-party host you did not choose.<\/li>\n\n\n\n<li><strong>Landing pages you do not own.<\/strong> Client sites, partner sites, event registration pages, app store links.<\/li>\n\n\n\n<li><strong>URL shorteners.<\/strong> Public shorteners are shared infrastructure with shared reputation. Bitly and its peers get listed on URI lists constantly through no fault of yours.<\/li>\n\n\n\n<li><strong>Anything a customer supplied.<\/strong> On a multi-tenant platform, this is where the risk concentrates.<\/li>\n<\/ol>\n\n\n\n<p>If your ESP rewrites links at send time, capture both the pre-send URL and the rewritten one. They are different domains and they are checked separately.<\/p>\n\n\n\n<p>Then run every domain on that list through the lookup. One of them is the listed party.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Why domains get listed in ivmURI<\/strong><\/h2>\n\n\n\n<p>Invaluement does not publish per-listing evidence, and you should not expect a forensic explanation in response to a delist request. In practice, ivmURI listings cluster around a short set of causes.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Spam trap exposure.<\/strong> Old, abandoned addresses get repurposed as traps. If your audience contains recipients who have not engaged in years, or data you purchased or inherited, mail reaching those addresses puts the linked domains in front of Invaluement&#8217;s collection systems. The listed party is the domain in the link, not the sender.<\/li>\n\n\n\n<li><strong>A compromised site.<\/strong> This is the case Invaluement&#8217;s own customer testimonials keep describing: a hosting operator sees a listing for a domain they know is legitimate, checks the site, and finds it hacked. Subdomains, forgotten staging environments, open redirect endpoints, and abandoned WordPress installs are the usual entry points.<\/li>\n\n\n\n<li><strong>Shared tracking infrastructure.<\/strong> If every customer on your platform links through the same tracking host, one bad list imported by one customer damages the domain reputation that every other customer depends on.<\/li>\n\n\n\n<li><strong>Brand-new link domains with no history.<\/strong> A domain registered last month and used immediately in bulk mail looks exactly like snowshoe infrastructure, because that is what snowshoe infrastructure looks like. Spinning up a fresh tracking domain to escape a listing usually makes the filtering worse.<\/li>\n\n\n\n<li><strong>Redirect chains you do not control.<\/strong> Affiliate links, partner tracking, and customer landing pages can change destination without telling you.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How to get delisted, in order<\/strong><\/h2>\n\n\n\n<p>The order matters more than the wording.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 1. Confirm the exact listed item<\/strong><\/h3>\n\n\n\n<p>Run the lookup and record the precise hostname that came back, plus a screenshot and the timestamp. Save the SMTP rejection text if you have it.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 2. Freeze the risk<\/strong><\/h3>\n\n\n\n<p>Pause the campaign, segment, customer, or link domain that matches the listing window. This is not cosmetic. If spam is still flowing while your request is being reviewed, the request fails, and Invaluement has been explicit that continued sending after a delist request is a primary reason for removal.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 3. Find and fix the cause<\/strong><\/h3>\n\n\n\n<p>Work the link inventory. Scan the destination sites for compromise. Close open redirects. Remove aged and unconsented recipients from the audience. Secure the accounts and applications behind whichever domain was listed. If the domain belongs to a customer, escalate to them and pause their sending until they can show what changed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 4. File one request, with evidence<\/strong><\/h3>\n\n\n\n<p>Invaluement&#8217;s delist page generates instructions after you enter the item. Those instructions ask you to send an email with a specific subject line, and to include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Why you think the listing happened, if you know.<\/li>\n\n\n\n<li>Why you think it should no longer be listed.<\/li>\n\n\n\n<li>Legitimate contact information.<\/li>\n\n\n\n<li>The text of the non-delivery report, or, absent an NDR, how you discovered the listing.<\/li>\n<\/ul>\n\n\n\n<p>One further requirement is easy to miss and gets requests silently dropped: send from a real organizational or ISP address, not a freemail account. Invaluement reserves the right to ignore requests that are <strong>both<\/strong> sent from freemail or privacy-shielded domains <strong>and<\/strong> contain no legitimate contact information, on the reasoning that the combination amounts to an anonymous request.&nbsp;<\/p>\n\n\n\n<p>That policy exists because snowshoe operators and blackhat ESPs flood the form anonymously while continuing to spam from the exact items they submitted.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 5. Do not resubmit<\/strong><\/h3>\n\n\n\n<p>Filing again before remediation is complete does not accelerate anything and makes the case harder to evaluate.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What happens after you file<\/strong><\/h2>\n\n\n\n<p>Invaluement listings expire on their own. The clock runs from the last observed incident, so once the behavior stops, the item eventually falls off with no action required.<\/p>\n\n\n\n<p>The delist request interacts with that clock. Rob McEwen, who operates Invaluement, has described the mechanics publicly: for a normally legitimate sender whose listing came from a compromised account that has since been fixed, the delist email usually triggers an immediate removal. When it does not, it is typically because third-party reputation data that feeds the delist decision is still poor. In those cases removal generally follows within a day or two, either because that external reputation recovers or because the request itself significantly shortened the expiration window. The system is dynamic and both effects can apply at once.<\/p>\n\n\n\n<p>Two practical takeaways. First, filing helps even when it does not produce instant removal, so file. Second, if you are still listed after a couple of days, the likeliest explanation is not that your request was ignored. It is that reputation signals elsewhere have not recovered yet.<\/p>\n\n\n\n<p>Verify removal through the same lookup path you used to confirm the listing. Then send.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Preventing the next listing in ivmURI (ivmLinkingDomains)<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Treat link domains as infrastructure<\/strong><\/h3>\n\n\n\n<p>Your click-tracking domain is a deliverable asset with its own reputation, and it is not covered by SPF, DKIM, or DMARC. Authentication proves who sent the message. It says nothing about where the message points.<\/p>\n\n\n\n<p>Use a link domain that is visibly related to your brand and has real history. Resist the urge to rotate. A new domain with no track record is treated as suspicious by default, and rotating away from a listing is the single most common way senders turn a two-day problem into a two-month one.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Segment by risk on shared platforms<\/strong><\/h3>\n\n\n\n<p>If you run an ESP, an agency, or any multi-tenant sending platform, do not put vetted high-volume customers and customers still under review on the same tracking host. Separate tiers so one weak list import cannot become everyone&#8217;s problem. Write down the escalation path in advance: pause, evidence request, hygiene requirement, and a stated rule for repeat incidents.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Enforce an engagement sunset<\/strong><\/h3>\n\n\n\n<p>Trap exposure is a hygiene failure with a mechanical fix. A defensible starting framework for routine marketing mail:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Window<\/strong><\/th><th><strong>Status<\/strong><\/th><th><strong>Action<\/strong><\/th><\/tr><\/thead><tbody><tr><td>0 to 90 days<\/td><td>Active<\/td><td>Normal sending, with consent and complaint monitoring<\/td><\/tr><tr><td>91 to 180 days<\/td><td>Review<\/td><td>Reduce frequency or run a documented re-permission campaign<\/td><\/tr><tr><td>180+ days<\/td><td>Suppress<\/td><td>Stop routine marketing unless a documented seasonal or contractual cycle justifies a longer window<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Adjust to your actual sending cadence. The principle is that the window exists and is enforced automatically, not that the numbers are universal.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Audit redirects on a schedule<\/strong><\/h3>\n\n\n\n<p>Open redirect endpoints, expired affiliate links, and forgotten subdomains are the long tail of URI listings. Inventory them quarterly and retire what nobody owns.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Monitor continuously<\/strong><\/h3>\n\n\n\n<p>Since Invaluement never notifies you and receivers filter quietly, spot checks are not sufficient. Monitor your domains, not just your IPs, and monitor the tracking host specifically. Warmy tracks blacklist status across the major lists as part of ongoing <a href=\"https:\/\/www.warmy.io\/product\/deliverability\/\" target=\"_blank\" rel=\"noopener noreferrer\">deliverability monitoring<\/a>, and pairs it with placement data so you can see inbox impact and listing status in the same view.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Keep sender reputation strong underneath all of it<\/strong><\/h3>\n\n\n\n<p>None of the above replaces the fundamentals. Consistent volume, gradual ramp-up on new domains and mailboxes, authenticated mail, and content that earns engagement are what keep you out of the collection systems that feed lists like this one in the first place. Warmy&#8217;s <a href=\"https:\/\/www.warmy.io\/product\/warm-up-email\/\" target=\"_blank\" rel=\"noopener noreferrer\">email warm-up<\/a> builds that history automatically.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.warmy.io\/blog\/wp-content\/uploads\/2023\/12\/Warmup-Performance-Screenshot-1024x576.webp\" alt=\"Email Warmup Performance Dashboard\" class=\"wp-image-6399\" title=\"\" srcset=\"https:\/\/www.warmy.io\/blog\/wp-content\/uploads\/2023\/12\/Warmup-Performance-Screenshot-1024x576.webp 1024w, https:\/\/www.warmy.io\/blog\/wp-content\/uploads\/2023\/12\/Warmup-Performance-Screenshot-300x169.webp 300w, https:\/\/www.warmy.io\/blog\/wp-content\/uploads\/2023\/12\/Warmup-Performance-Screenshot-768x432.webp 768w, https:\/\/www.warmy.io\/blog\/wp-content\/uploads\/2023\/12\/Warmup-Performance-Screenshot-1536x864.webp 1536w, https:\/\/www.warmy.io\/blog\/wp-content\/uploads\/2023\/12\/Warmup-Performance-Screenshot-2048x1152.webp 2048w, https:\/\/www.warmy.io\/blog\/wp-content\/uploads\/2023\/12\/Warmup-Performance-Screenshot-800x450.webp 800w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Common mistakes<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Rotating the sending IP.<\/strong> Fixes nothing. The listed item is a domain.<\/li>\n\n\n\n<li><strong>Spinning up a new tracking domain immediately.<\/strong> Trades a listed domain with history for an unlisted domain with none, and filters distrust the latter.<\/li>\n\n\n\n<li><strong>Checking only the second-level domain.<\/strong> The list holds hostnames. Check the subdomain you actually link to.<\/li>\n\n\n\n<li><strong>Submitting from a Gmail address with no contact details.<\/strong> Meets Invaluement&#8217;s stated definition of an anonymous request.<\/li>\n\n\n\n<li><strong>Filing before pausing.<\/strong> Ongoing spam during review is the most reliable way to stall a removal.<\/li>\n\n\n\n<li><strong>Assuming quiet complaint logs mean you are safe.<\/strong> Trap-driven listings produce no complaints by definition.<\/li>\n\n\n\n<li><strong>Delisting and declaring victory.<\/strong> Removal is the easy half. If the cause is still there, you will be back.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Conclusion<\/strong><\/h2>\n\n\n\n<p>ivmURI is a small, paid, deliberately conservative list that a lot of commercial filters trust implicitly. That combination is why a listing hurts out of proportion to the list&#8217;s size, and why the fix has to be precise.<\/p>\n\n\n\n<p>The precision starts with a single reframe: this is not an IP problem. Open the message, inventory every domain it links to, find the one that is listed, and fix whatever put it there. Then file a short, specific, well-evidenced request from a real address, and stop sending until it clears.<\/p>\n\n\n\n<p>Everything after that is hygiene. Stable link domains, enforced engagement windows, audited redirects, and continuous monitoring of domains rather than just IPs. Senders who do those four things do not spend much time thinking about Invaluement, which is the point.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>TL;DR: ivmURI is a URI DNSBL operated by Invaluement. It lists domain names, plus a small number of IPs, found inside the clickable links in the body of spam. It does not list the IP your mail server sends from. As of August 2026, the list answers DNS queries under a new label, ivmLinkingDomains, with [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":8740,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[111],"tags":[],"class_list":["post-3597","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-email-spam-blacklists"],"acf":[],"lang":"en","translations":{"en":3597},"pll_sync_post":[],"_links":{"self":[{"href":"https:\/\/www.warmy.io\/blog\/wp-json\/wp\/v2\/posts\/3597","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.warmy.io\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.warmy.io\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.warmy.io\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.warmy.io\/blog\/wp-json\/wp\/v2\/comments?post=3597"}],"version-history":[{"count":2,"href":"https:\/\/www.warmy.io\/blog\/wp-json\/wp\/v2\/posts\/3597\/revisions"}],"predecessor-version":[{"id":8742,"href":"https:\/\/www.warmy.io\/blog\/wp-json\/wp\/v2\/posts\/3597\/revisions\/8742"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.warmy.io\/blog\/wp-json\/wp\/v2\/media\/8740"}],"wp:attachment":[{"href":"https:\/\/www.warmy.io\/blog\/wp-json\/wp\/v2\/media?parent=3597"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.warmy.io\/blog\/wp-json\/wp\/v2\/categories?post=3597"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.warmy.io\/blog\/wp-json\/wp\/v2\/tags?post=3597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}