{"id":27519,"date":"2023-12-14T18:55:14","date_gmt":"2023-12-14T15:55:14","guid":{"rendered":"https:\/\/snov.io\/knowledgebase\/?p=27519"},"modified":"2026-03-18T13:02:50","modified_gmt":"2026-03-18T10:02:50","slug":"how-to-verify-your-list-for-outreach","status":"publish","type":"post","link":"https:\/\/snov.io\/knowledgebase\/how-to-verify-your-list-for-outreach\/","title":{"rendered":"How to use yellow (unverifiable) emails in campaigns"},"content":{"rendered":"<div class=\"group w-full text-token-text-primary border-b border-black\/10 gizmo:border-0 dark:border-gray-900\/50 gizmo:dark:border-0 bg-gray-50 gizmo:bg-transparent dark:bg-[#444654] gizmo:dark:bg-transparent\" data-testid=\"conversation-turn-5\">\n<div class=\"p-4 gizmo:py-2 justify-center text-base md:gap-6 md:py-6 m-auto\">\n<div class=\"flex flex-1 gap-4 text-base mx-auto md:gap-6 gizmo:gap-3 gizmo:md:px-5 gizmo:lg:px-1 gizmo:xl:px-5 md:max-w-2xl lg:max-w-[38rem] gizmo:md:max-w-3xl gizmo:lg:max-w-[40rem] gizmo:xl:max-w-[48rem] xl:max-w-3xl }\">\n<div class=\"relative flex w-[calc(100%-50px)] flex-col gizmo:w-full lg:w-[calc(100%-115px)] agent-turn\">\n<div class=\"flex-col gap-1 md:gap-3\">\n<div class=\"flex flex-grow flex-col max-w-full gap-3 gizmo:gap-0\">\n<div class=\"min-h-[20px] text-message peer flex flex-col items-start gap-3 whitespace-pre-wrap break-words peer-[.text-message]:mt-5 overflow-x-auto\" data-message-author-role=\"assistant\" data-message-id=\"22e041e5-e27d-483e-a05b-7f1464b3c722\">\n<div class=\"markdown prose w-full break-words dark:prose-invert light\">\n<p><em>After reading this article, you'll learn how to check the delivery risks of unverifiable emails (marked with a yellow status).<\/em><\/p>\n<p><em>Plus, you'll learn how to evaluate the health of your email list.<\/em><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>After <a href=\"https:\/\/snov.io\/email-verifier\" target=\"_blank\" rel=\"noopener\">email verification<\/a>, a yellow <strong>\"Unverifiable\"<\/strong> status may appear. It indicates that the email address couldn't be verified with 100% certainty.<\/p>\n<div class=\"notification-block tip\">\n<div class=\"notification-block__icon\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/snov.io\/knowledgebase\/wp-content\/themes\/knowledgebase-n\/assets\/img\/academicons_ideas-repec.svg\" alt=\"tip\" width=\"32\" height=\"32\" \/><\/div>\n<div class=\"notification-block__text\">\n<p class=\"whitespace-pre-wrap break-words\"><strong>Why are some email addresses yellow?<\/strong><\/p>\n<p class=\"whitespace-pre-wrap break-words\">Yellow emails (unknown status) are addresses that went through <a href=\"https:\/\/snov.io\/knowledgebase\/how-email-verification-works\/\" target=\"_blank\" rel=\"noopener\">our verification process<\/a> but couldn't be confirmed as valid or invalid.<\/p>\n<p class=\"whitespace-pre-wrap break-words\">Snov.io charges 1 credit for yellow emails because they are still potentially valuable contacts that may work. You will not be charged for red emails (invalid) or duplicates.<\/p>\n<\/div>\n<\/div>\n<p>Using yellow emails in campaigns comes with risks, such as a higher chance of delivery errors and potential issues with email engagement.<\/p>\n<p>To minimize these risks, always analyze your lists before launching campaigns.<\/p>\n<h3><strong>Step 1: Evaluate list health<\/strong><\/h3>\n<p>Open your <a href=\"https:\/\/app.snov.io\/prospects\/\" target=\"_blank\" rel=\"noopener\">prospect list<\/a>, find the verification status icons in the top right corner.<\/p>\n<p>The numbers indicate how many emails of each status exist in the list.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-block-image shadow alignnone\" src=\"https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/10\/2023-11-13_14-42-24-1024x310.png\" alt=\"\" width=\"1024\" height=\"310\" \/><\/p>\n<p><strong>Action:<\/strong> Check the the number of yellow emails to evaluate the health of your list.<\/p>\n<ul>\n<li>Healthy (up to 5% unverifiable):<\/li>\n<\/ul>\n<p>A list with this number of risky emails is considered \"healthy\". It's safe to use the list for launching campaigns.<\/p>\n<p>To keep your email list healthy, include only valid (green) addresses and remove high-risk yellow emails.<\/p>\n<ul>\n<li>Risky (10-20% are unverifiable):<\/li>\n<\/ul>\n<p>This percentage of risky emails is okay, but be sure to track engagement carefully to minimize potential issues.<\/p>\n<ul>\n<li>Not healthy (20% and above are unverifiable)<\/li>\n<\/ul>\n<p>Don't use the list until you've removed high-risk yellow emails. We recommend removing a significant portion of yellow emails from the list to reduce delivery errors.<\/p>\n<p><strong>Note:<\/strong> Snov.io automatically blocks sending campaigns to invalid (red) email addresses.<\/p>\n<h3><strong>Step 2: Check deliverability risks and clean the list<\/strong><\/h3>\n<p>After <a href=\"https:\/\/snov.io\/knowledgebase\/how-email-verification-works\/\" target=\"_blank\" rel=\"noopener\">verification process<\/a>, Snov.io adds status indicators to every email address.<\/p>\n<p>Hover the mouse over the yellow circle icon to view the email status description. This description provides more details about the email's status.<\/p>\n<p><strong>Action: <\/strong>Examine the yellow emails in the list to understand the risks when sending to those addresses. Read more about <a href=\"https:\/\/snov.io\/knowledgebase\/email-statuses\/\" target=\"_blank\" rel=\"noopener\">yellow statuses<\/a> and move emails with the highest risk to a separate list.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-block-image shadow aligncenter wp-image-28577 size-full\" src=\"https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/09\/2023-11-14_12-08-47.png\" alt=\"\" width=\"999\" height=\"402\" srcset=\"https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/09\/2023-11-14_12-08-47.png 999w, https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/09\/2023-11-14_12-08-47-300x121.png 300w, https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/09\/2023-11-14_12-08-47-768x309.png 768w\" sizes=\"(max-width: 999px) 100vw, 999px\" \/><\/p>\n<h3><strong>Step 3: Add yellow emails and check the metrics<\/strong><\/h3>\n<p>Add yellow emails to the active campaign list gradually in small batches (10-20 emails at a time).<\/p>\n<p>While the sending is ongoing, monitor your <a href=\"https:\/\/snov.io\/knowledgebase\/how-to-view-email-campaign-statistics\/\" target=\"_blank\" rel=\"noopener\">campaign metrics<\/a>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-block-image shadow aligncenter wp-image-28584 size-full\" src=\"https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/09\/2023-11-14_12-43-37.png\" alt=\"\" width=\"999\" height=\"497\" srcset=\"https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/09\/2023-11-14_12-43-37.png 999w, https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/09\/2023-11-14_12-43-37-300x149.png 300w, https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/09\/2023-11-14_12-43-37-768x382.png 768w\" sizes=\"(max-width: 999px) 100vw, 999px\" \/><\/p>\n<p><strong># Bounce rate<\/strong><\/p>\n<p>Your goal is to keep the bounce rate (non-delivered) lower than the <strong>5-10%<\/strong>.<\/p>\n<p>At <a href=\"https:\/\/snov.io\/knowledgebase\/how-to-fix-bounce-rate-issue\/\" target=\"_blank\" rel=\"noopener\">15% threshold<\/a> the campaign will be automatically paused.<\/p>\n<p>If you notice that bounce rate is getting higher than 10%, stop using yellow emails in this campaign.<\/p>\n<p><strong>Action: <\/strong>Monitor the bounce rate, and stop sending to more yellow emails if it goes above 10%.<\/p>\n<p>Snov.io automatically detects most types of undelivered emails. Recipients with a <strong>Bounced<\/strong> status will no longer receive follow-ups.<\/p>\n<p><strong># Email opens<\/strong><\/p>\n<p>Closely monitor the email activity of recipients with yellow addresses.<\/p>\n<p>If there are no email opens even after sending follow-ups, it indicates a higher chance of a delivery issue. Low email engagement hurts your sender reputation.<\/p>\n<p><strong>Action:<\/strong> Proactively handle email recipients with no engagement to minimize reputation risks.<\/p>\n<p>Go to the <strong>Recipients<\/strong> tab in your campaign.<\/p>\n<p>Use the <strong>Filter<\/strong> menu in the top left corner to show emails with <strong>Active<\/strong> status and <strong>zero<\/strong> views.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-block-image shadow aligncenter wp-image-28580 size-full\" src=\"https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/09\/2023-11-14_12-36-40.png\" alt=\"\" width=\"999\" height=\"497\" srcset=\"https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/09\/2023-11-14_12-36-40.png 999w, https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/09\/2023-11-14_12-36-40-300x149.png 300w, https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/09\/2023-11-14_12-36-40-768x382.png 768w\" sizes=\"(max-width: 999px) 100vw, 999px\" \/><\/p>\n<p>Now, you have several choices on what to do next:<\/p>\n<ol>\n<li>Move into separate list.<\/li>\n<li>Change the status to <strong>Paused<\/strong> to stop the email sequence.<\/li>\n<li>Add them to your <strong>Do-not-email<\/strong> list.<\/li>\n<\/ol>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-block-image shadow aligncenter wp-image-28583 size-full\" src=\"https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/09\/2023-11-14_12-42-37.png\" alt=\"\" width=\"999\" height=\"497\" srcset=\"https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/09\/2023-11-14_12-42-37.png 999w, https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/09\/2023-11-14_12-42-37-300x149.png 300w, https:\/\/snov.io\/knowledgebase\/wp-content\/uploads\/2023\/09\/2023-11-14_12-42-37-768x382.png 768w\" sizes=\"(max-width: 999px) 100vw, 999px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>Use yellow emails in your lists carefully and strategically.<\/p>\n<p>While these addresses may accept emails and their owners could potentially become leads, being overly cautious might cause you to miss valuable emails and lose potential clients.<\/p>\n<p>Understand the risks and find the right balance when using yellow emails.<\/p>\n<p>Add them to campaigns cautiously, don't leave big number of yellow emails without review, as it can harm your engagement rates, sender reputation, and affect campaign results.<\/p>\n<p>The decision to use them also depends on your email account condition and the health of your sender domain.<\/p>\n<p><strong>Avoid using yellow-status emails for campaigns if:<\/strong><\/p>\n<ol>\n<li>Campaigns are already facing deliverability problems and have a high bounce rate. <strong><a href=\"https:\/\/snov.io\/knowledgebase\/how-to-fix-bounce-rate-issue\/\" target=\"_blank\" rel=\"noopener\">Fix bounce rate issue --&gt;<\/a><\/strong><\/li>\n<li>Your email accounts haven't been warmed up yet. <strong><a href=\"https:\/\/app.snov.io\/warm-up#\/new\">Start a warm-up --&gt;<\/a><\/strong><\/li>\n<li>Your sender domain's health needs improvement. <strong><a href=\"https:\/\/snov.io\/knowledgebase\/ua\/improving-deliverability-with-dns-records-ua\/#how_to_check_domain_health\" target=\"_blank\" rel=\"noopener\">Check domain's health --&gt;\u00a0<\/a><\/strong><\/li>\n<\/ol>\n<p><em>If you have a question that wasn't answered here, don't hesitate to contact our Customer Care team. You can reach them at help@snov.io or through live chat. <\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>After reading this article, you&#8217;ll learn how to check the delivery risks of unverifiable emails (marked with a yellow status). Plus, you&#8217;ll learn how to evaluate the health of your email list. After email verification, a yellow &#8220;Unverifiable&#8221; status may appear. It indicates that the email address couldn&#8217;t be verified with 100% certainty. Why are [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"_links":{"self":[{"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/posts\/27519"}],"collection":[{"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/users\/16"}],"replies":[{"embeddable":true,"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/comments?post=27519"}],"version-history":[{"count":6,"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/posts\/27519\/revisions"}],"predecessor-version":[{"id":45389,"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/posts\/27519\/revisions\/45389"}],"wp:attachment":[{"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/media?parent=27519"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/categories?post=27519"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/snov.io\/knowledgebase\/wp-json\/wp\/v2\/tags?post=27519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}