{"id":1885,"date":"2020-10-15T14:24:19","date_gmt":"2020-10-15T11:24:19","guid":{"rendered":"https:\/\/mailsafi.com\/blog\/?p=1885"},"modified":"2021-02-01T14:39:50","modified_gmt":"2021-02-01T11:39:50","slug":"what-is-blacklisting","status":"publish","type":"post","link":"https:\/\/mailsafi.com\/blog\/what-is-blacklisting\/","title":{"rendered":"What is Blacklisting?"},"content":{"rendered":"\n<p>Blacklisting happens for any number of reasons. Most typically, it occurs when an IP address is suspected of sending spam. Continual blacklisting affects your IP reputation because your IP address is identified as a regular source of spam. Blacklisting is a common challenge in email marketing. If you depend on email marketing, you have probably found your IP address or domain on a blacklist more than one. <\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_49 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"ez-toc-toggle-icon-1\"><label for=\"item-69deee7b16c44\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;direction:ltr;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input  type=\"checkbox\" id=\"item-69deee7b16c44\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/mailsafi.com\/blog\/what-is-blacklisting\/#1_What_is_an_Email_Blacklist\" title=\"1. What is an Email Blacklist?\">1. What is an Email Blacklist?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/mailsafi.com\/blog\/what-is-blacklisting\/#2_Understanding_Email_Blacklists_and_Blacklisting\" title=\"2. Understanding Email Blacklists and Blacklisting\">2. Understanding Email Blacklists and Blacklisting<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/mailsafi.com\/blog\/what-is-blacklisting\/#21_What_does_being_blacklisted_mean\" title=\"2.1 What does being blacklisted mean?\">2.1 What does being blacklisted mean?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/mailsafi.com\/blog\/what-is-blacklisting\/#22_Categories_of_blacklisting\" title=\"2.2 Categories of blacklisting\">2.2 Categories of blacklisting<\/a><ul class='ez-toc-list-level-4'><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/mailsafi.com\/blog\/what-is-blacklisting\/#i_Internet_Protocol_IP_address_blacklist\" title=\"i. Internet Protocol (IP) address blacklist\">i. Internet Protocol (IP) address blacklist<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/mailsafi.com\/blog\/what-is-blacklisting\/#ii_Domain_blacklists\" title=\"ii. Domain blacklists\">ii. Domain blacklists<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/mailsafi.com\/blog\/what-is-blacklisting\/#3_How_You_May_End_up_on_a_Blacklist\" title=\"3. How You May End up on a Blacklist\">3. How You May End up on a Blacklist<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/mailsafi.com\/blog\/what-is-blacklisting\/#4_Spam_traps\" title=\"4. Spam traps\">4. Spam traps<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/mailsafi.com\/blog\/what-is-blacklisting\/#5_How_to_know_find_out_whether_you%E2%80%99re_on_an_email_blacklist\" title=\"5. How to know find out whether you&#8217;re on an email blacklist\">5. How to know find out whether you&#8217;re on an email blacklist<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/mailsafi.com\/blog\/what-is-blacklisting\/#6_What_do_you_when_you_realize_you%E2%80%99re_on_a_blacklist\" title=\"6. What do you when you realize you&#8217;re on a blacklist\">6. What do you when you realize you&#8217;re on a blacklist<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/mailsafi.com\/blog\/what-is-blacklisting\/#7_Conclusion\" title=\"7. Conclusion\">7. Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/mailsafi.com\/blog\/what-is-blacklisting\/#More_resources_on_common_business_email_challenges\" title=\"More resources on common business email challenges\">More resources on common business email challenges<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" style=\"font-size:32px\"><span class=\"ez-toc-section\" id=\"1_What_is_an_Email_Blacklist\"><\/span><span class=\"has-inline-color has-vivid-red-color\">1. What is an Email Blacklist?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>An email blacklist is a real time list of IP addresses and domains that are flagged as suspicious of sending spam emails. Internet service providers, email service providers and anti-spam agencies use blacklists to identify and block spammers. Additionally, DNSBL (Domain Name System-based Blackhole List) or RBL Real-time Blackhole List are technical terms for email blacklists. Most businesses end up on email blacklists as a result of poor email list hygiene. This involves sending emails to invalid email addresses with misspellings, typos or just plain fake email addresses. In this article, we will discuss;<\/p>\n\n\n\n<ul><li>The importance of understanding how blacklisting works. This is especially necessary for businesses that rely on email marketing<\/li><li>Types of blacklists and blacklisting<\/li><li>How businesses end up on email blacklists<\/li><li>How internet service providers use spam traps to blacklist spammers<\/li><li>Email marketing best practices that help avoid blacklists<\/li><li>How to delist from an email blacklists<\/li><\/ul>\n\n\n\n<h2 class=\"has-vivid-red-color has-text-color wp-block-heading\" style=\"font-size:32px\"><span class=\"ez-toc-section\" id=\"2_Understanding_Email_Blacklists_and_Blacklisting\"><\/span>2. Understanding Email Blacklists and Blacklisting<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"has-vivid-red-color has-text-color wp-block-heading\" style=\"font-size:26px\"><span class=\"ez-toc-section\" id=\"21_What_does_being_blacklisted_mean\"><\/span>2.1 <span class=\"has-inline-color has-vivid-red-color\">What does being blacklisted mean?<\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>As mentioned earlier, blacklisting is the process of identifying IP addresses or domains of known\/suspected spammers and blocking content from those addresses. When a user sends an email, ISPs check the IP address where the email originated from against blacklists. An IP address is a string of digits that uniquely specify which server the email came from. Once the ISP verifies that the IP address does not belong to any blacklist, the email goes through other filters depending on your provider.<\/p>\n\n\n\n<p>When blacklisted, this means that your emails will not reach the intended mailbox. This wreaks havoc on your marketing activities, especially if the sum of it is done through email. <\/p>\n\n\n\n<p>Understanding how blacklists work is important as this affects;<\/p>\n\n\n\n<ul><li><strong>Email deliverability<\/strong>; email delivery rates is the number one metric businesses use to measure email marketing. Therefore, sending emails from blacklisted IP addresses or domains leads to hard bounces. Also, your emails end up in the spam\/junk folders of your recipients&#8217; mailboxes.<\/li><li><strong>Your sending reputation<\/strong>; looking like a spammer coupled with hard bounces gives your domain a bad sending reputation. This will also eventually wreck your email open rates<\/li><\/ul>\n\n\n\n<p>If you are looking at email marketing as your main ROI driving marketing strategy, you must understand what can land you in a blacklist and how to avoid them. This knowledge can make or break your email marketing strategies.<\/p>\n\n\n\n<h3 class=\"has-vivid-red-color has-text-color wp-block-heading\" style=\"font-size:26px\"><span class=\"ez-toc-section\" id=\"22_Categories_of_blacklisting\"><\/span>2.2 Categories of blacklisting<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"780\" height=\"390\" src=\"https:\/\/mailsafi.com\/blog\/wp-content\/uploads\/2020\/10\/domain-blacklisting.png\" alt=\"domain blacklisting\" class=\"wp-image-2034\" srcset=\"https:\/\/mailsafi.com\/blog\/wp-content\/uploads\/2020\/10\/domain-blacklisting.png 780w, https:\/\/mailsafi.com\/blog\/wp-content\/uploads\/2020\/10\/domain-blacklisting-300x150.png 300w, https:\/\/mailsafi.com\/blog\/wp-content\/uploads\/2020\/10\/domain-blacklisting-768x384.png 768w\" sizes=\"(max-width: 780px) 100vw, 780px\" \/><figcaption>domain blacklisting<\/figcaption><\/figure>\n\n\n\n<p>There are two main categories of blacklists based on what indicator identifies the source of spam. They are;<\/p>\n\n\n\n<h4 class=\"has-medium-font-size wp-block-heading\"><span class=\"ez-toc-section\" id=\"i_Internet_Protocol_IP_address_blacklist\"><\/span><span class=\"has-inline-color has-vivid-red-color\"><strong>i. Internet Protocol (IP) address blacklist<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>This is a list of email servers that are known sources of spam. ISPs will mark your email server as a source of spam when;<\/p>\n\n\n\n<ul><li>Your mail server is under attack by botnets such as spambots<\/li><li>The email server is an open mail relay. This means that anyone on the internet can use it to send emails<\/li><li>Your email server&#8217;s public IP address is known for sending spam<\/li><\/ul>\n\n\n\n<p>Whenever you send a message via email, it contains a string of digits called the IP address which uniquely specifies the server that the email came from. You can trace the location of an email by referencing the IP address.<\/p>\n\n\n\n<p>When an ISP receives an email, it automatically checks the IP address against a blacklist. If the incoming IP address is on the list, the email is discarded. If it is not on the list, it goes through other filters before reaching the intended destination mailbox. In that sense, a blacklist is just one tool that determines whether an email will be received or not.<\/p>\n\n\n\n<p>Moreover, IP addresses are identified based on their history of sending good or bad emails. If the IP address usually sends good emails, it is cleared for delivery<\/p>\n\n\n\n<h4 class=\"has-medium-font-size wp-block-heading\"><span class=\"ez-toc-section\" id=\"ii_Domain_blacklists\"><\/span><strong><span class=\"has-inline-color has-vivid-red-color\">ii. Domain blacklists<\/span><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n\n\n\n<p>Every email you send has a domain associated with it. This domain is an email sending domain that is seen in <em>From <\/em>address, <em>Return <\/em>address and also on the DKIM signing domain. <\/p>\n\n\n\n<h2 class=\"has-vivid-red-color has-text-color wp-block-heading\" style=\"font-size:32px\"><span class=\"ez-toc-section\" id=\"3_How_You_May_End_up_on_a_Blacklist\"><\/span>3. How You May End up on a Blacklist<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>Poor email list hygiene<\/strong>:&nbsp;Sending lots of emails to inactive addresses or inboxes that have been turned into spam traps is bad for your sender reputation. Many ISPs use harvested emails as pure spam traps and sending lots of emails to these accounts reflects poorly on your company\u2019s email sourcing practices.<\/p>\n\n\n\n<p><strong>Hackers<\/strong>:&nbsp;Hackers access your account to send spam messages. Alternatively, hackers could be spoofing your email address, which means they are piggybacking off your IP address to send fraudulent emails. <\/p>\n\n\n\n<p><strong>High volume of emails<\/strong>:&nbsp;Spammers send the most emails in the world (remember that 80% figure referenced earlier?), so if an IP address has a much higher email volume than other IP addresses, it is likely a sign of a spammer. <\/p>\n\n\n\n<p><strong>Increased email volume<\/strong>:&nbsp;If an ISP notices a sudden spike in email traffic coming from your IP address, it can take that as a sign of spam content. Legitimate organizations usually build their email list slowly over an extended time and sudden spikes look very suspicious.<\/p>\n\n\n\n<p><strong>Spam complaints<\/strong>:&nbsp;Every company will receive some complaints about their email marketing. In itself, that\u2019s not necessarily a bad thing. However, if the number of complaints goes above an accepted threshold, an ISP might put you on the blacklist.<\/p>\n\n\n\n<p><strong>Bad email content<\/strong>:&nbsp;Several ISP filter emails by keywords found in the body of the text. Words like \u201cfree\u201d, \u201cmoney-back guarantee\u201d, CAPS LOCK, colored fonts, and lots of exclamation marks (!!!!) are all red flag content that can get you on a blacklist.<\/p>\n\n\n\n<p><strong>Poor list management<\/strong>; if you frequently do not honor email opt-ins or allow uses to unsubscribe, you are much more likely to land on an email blacklist.<\/p>\n\n\n\n<h3 class=\"has-vivid-red-color has-text-color wp-block-heading\" style=\"font-size:32px\"><span class=\"ez-toc-section\" id=\"4_Spam_traps\"><\/span>4. Spam traps<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"400\" src=\"https:\/\/mailsafi.com\/blog\/wp-content\/uploads\/2020\/10\/BlogFeatureImage-What-is-a-Spam-Trap-and-How-to-Avoid-Them.png\" alt=\"spam trap\" class=\"wp-image-1917\" srcset=\"https:\/\/mailsafi.com\/blog\/wp-content\/uploads\/2020\/10\/BlogFeatureImage-What-is-a-Spam-Trap-and-How-to-Avoid-Them.png 800w, https:\/\/mailsafi.com\/blog\/wp-content\/uploads\/2020\/10\/BlogFeatureImage-What-is-a-Spam-Trap-and-How-to-Avoid-Them-300x150.png 300w, https:\/\/mailsafi.com\/blog\/wp-content\/uploads\/2020\/10\/BlogFeatureImage-What-is-a-Spam-Trap-and-How-to-Avoid-Them-768x384.png 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption>spam trap emails<\/figcaption><\/figure>\n\n\n\n<p>ISPs build blacklists by luring spammers using spam traps or spam trap emails. These spam traps target individuals who;<\/p>\n\n\n\n<ul><li>Harvest and buy email addresses. <\/li><li>Practice pure list hygiene and send emails to addresses with typos<\/li><li>Do not use opt-in email lists therefore sending emails to users without permission<\/li><\/ul>\n\n\n\n<p>There are different types of spam traps that can be your one way ticket to a blacklist.<\/p>\n\n\n\n<ul><li><span class=\"has-inline-color has-vivid-red-color\">Pure or pristine spam traps<\/span>; these are email addresses that have not been used to sign up, send or receive emails hence you do not expect them to show up on an email list. <\/li><li><span class=\"has-inline-color has-vivid-red-color\">Typo spam traps<\/span>; these bank on senders&#8217; errors such as misspelling an email address and other typos. When senders send emails to such invalid email addresses, it indicates poor list hygiene.<\/li><li><span class=\"has-inline-color has-vivid-red-color\">Recycled spam traps<\/span>; these are email addresses that are valid but have been dormant for a very long time. This means that the address has not engaged with email for a long time. ISPs then reactivate them as spam traps<\/li><\/ul>\n\n\n\n<p>While it may seem annoying to have the emails you\u2019re carefully crafting rejected before they even reach your subscribers, blacklists are actually quite helpful. Nearly 85% of emails send daily are spam. Blacklists exist to keep a large amount of unwanted messages out of people\u2019s inboxes. Very large ISPs have their own internal blacklists. However, many use publicly available ones run by companies that specialize in this field.<\/p>\n\n\n\n<h2 class=\"has-vivid-red-color has-text-color wp-block-heading\" style=\"font-size:32px\"><span class=\"ez-toc-section\" id=\"5_How_to_know_find_out_whether_you%E2%80%99re_on_an_email_blacklist\"><\/span>5. How to know find out whether you&#8217;re on an email blacklist<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>If receiving email service providers reject or send your emails to junk folders, it may be time to check if you&#8217;re on an email blacklist. You can start by checking popular blacklists available;<\/p>\n\n\n\n<ul><li><a href=\"http:\/\/www.barracudacentral.org\/rbl\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">Barracuda Reputation Block List<\/span><\/strong><\/a>: BRBL is a free DNS blacklist (DNSBL) of IP addresses known to send spam.<\/li><li><a href=\"https:\/\/www.invaluement.com\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">Invaluement:<\/span><\/strong><\/a>&nbsp;The Invaluement anti-spam DNSBL blocks elusive types of spam where the sender is sending unsolicited bulk email and escaping traditional detection methods.<\/li><li><a href=\"https:\/\/mxtoolbox.com\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">MXToolBox:<\/span><\/strong><\/a>&nbsp;MXToolbox shows you whether or not your domain or IP address is blacklisted and can perform checks on your DNS to see how it is configured.<\/li><li><a href=\"http:\/\/multirbl.valli.org\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">MultiRBL:<\/span><\/strong><\/a><span class=\"has-inline-color has-vivid-cyan-blue-color\">&nbsp;<\/span>This free multiple DNS blacklist service cross-references other blacklists by IPV4, IPV6, or by domain.<\/li><li><a href=\"https:\/\/www.spamcop.net\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">Spamcop:<\/span><\/strong><\/a>&nbsp;The SpamCop Blocking List (SCBL) lists IP addresses that had mail reported as spam by SpamCop users.<\/li><li><strong><a href=\"https:\/\/www.spamhaus.org\/\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"has-inline-color has-vivid-cyan-blue-color\">Spamhaus<\/span><\/a>:<\/strong>&nbsp;The Spamhaus Project maintains a number of DNSBLs as part of their effort to identify and track spam sources, and provide anti-spam protection.&nbsp;<\/li><li><a href=\"http:\/\/www.surbl.org\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">SURBL<\/span><\/strong><\/a><span class=\"has-inline-color has-vivid-cyan-blue-color\"><a href=\"http:\/\/www.surbl.org\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>:<\/strong><\/a><\/span><a href=\"http:\/\/www.surbl.org\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>&nbsp;<\/strong><\/a>Unlike most lists, SURBLs are not lists of message senders. SURBLs are lists of websites that have appeared in unsolicited messages.<\/li><\/ul>\n\n\n\n<p>Other than checking available blacklists, you can look out for the following signs of blacklisting such as seriously dropping delivery rates and email bounces.<\/p>\n\n\n\n<h2 class=\"has-vivid-red-color has-text-color wp-block-heading\" style=\"font-size:32px\"><span class=\"ez-toc-section\" id=\"6_What_do_you_when_you_realize_you%E2%80%99re_on_a_blacklist\"><\/span>6. What do you when you realize you&#8217;re on a blacklist<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>It&#8217;s simple. Clean up your act and get in the ISP&#8217;s good books. Most ISPs give businesses the opportunity to appeal but not without effort. You should;<\/p>\n\n\n\n<ul><li>Clean up your email lists<\/li><li>Keep your email lists organic. Do not rent, buy or harvest emails<\/li><li>Protect your server from botnets and cyber criminals<\/li><li>Use opt-in email<\/li><\/ul>\n\n\n\n<p>If you have an email service provider, they are responsible for getting you delisted.<\/p>\n\n\n\n<h2 class=\"has-vivid-red-color has-text-color wp-block-heading\" style=\"font-size:32px\"><span class=\"ez-toc-section\" id=\"7_Conclusion\"><\/span>7. Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Blacklisting is an inevitable part of running a business. It may seem annoying but it is essential in reducing spam emails from untrusted sources. There are many ways which businesses can prevent ending up on a blacklist. The best way to do so is to maintain good email hygiene. Other ways include protecting your email server and using commendable email service providers. Blacklisting is not permanent but continued blacklisting will hurt your reputation in the long run.<\/p>\n\n\n\n<p class=\"has-light-green-cyan-background-color has-background\"><strong><a href=\"https:\/\/www.mailsafi.com\/email-security\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"has-inline-color has-vivid-cyan-blue-color\">MailSafi&#8217;s Email Security solution<\/span><\/a><\/strong> offers protection against blacklisting. This will ensure that you never have to worry about any emails you send bouncing back because your domain has been blacklisted. <strong><a href=\"https:\/\/www.mailsafi.com\/contact-us\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"has-inline-color has-vivid-cyan-blue-color\">Contact us<\/span><\/a><\/strong> today or sign up on our website <strong><a href=\"https:\/\/www.mailsafi.com\/email-security\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"has-inline-color has-vivid-cyan-blue-color\">here<\/span><\/a><\/strong>. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"More_resources_on_common_business_email_challenges\"><\/span>More resources on common business email challenges<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol><li><a href=\"https:\/\/mailsafi.com\/blog\/what-is-business-email-compromise\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">The High Cost of Business Email Compromise<\/span><\/strong><\/a><\/li><li><a href=\"https:\/\/mailsafi.com\/blog\/email-authentication-the-anti-phishing-solution\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">Email Authentication &#8211; The Ultimate Anti-phishing Solution<\/span><\/strong><\/a><\/li><li><a href=\"https:\/\/mailsafi.com\/blog\/the-cost-of-internal-email-spam-to-businesses\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">The Cost of Internal Email Spam to Businesses<\/span><\/strong><\/a><\/li><li><a href=\"https:\/\/mailsafi.com\/blog\/on-premise-mail-servers\/\"><strong><span class=\"has-inline-color has-vivid-cyan-blue-color\">Challenges of Running On-premise Mail Servers<\/span><\/strong><\/a><\/li><\/ol>\n<div class=\"pvc_clear\"><\/div><p id=\"pvc_stats_1885\" class=\"pvc_stats all  \" data-element-id=\"1885\" style=\"\"><i class=\"pvc-stats-icon large\" aria-hidden=\"true\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" version=\"1.0\" viewBox=\"0 0 502 315\" preserveAspectRatio=\"xMidYMid meet\"><g transform=\"translate(0,332) scale(0.1,-0.1)\" fill=\"\" stroke=\"none\"><path d=\"M2394 3279 l-29 -30 -3 -207 c-2 -182 0 -211 15 -242 39 -76 157 -76 196 0 15 31 17 60 15 243 l-3 209 -33 29 c-26 23 -41 29 -80 29 -41 0 -53 -5 -78 -31z\"\/><path d=\"M3085 3251 c-45 -19 -58 -50 -96 -229 -47 -217 -49 -260 -13 -295 52 -53 146 -42 177 20 16 31 87 366 87 410 0 70 -86 122 -155 94z\"\/><path d=\"M1751 3234 c-13 -9 -29 -31 -37 -50 -12 -29 -10 -49 21 -204 19 -94 39 -189 45 -210 14 -50 54 -80 110 -80 34 0 48 6 76 34 21 21 34 44 34 59 0 14 -18 113 -40 219 -37 178 -43 195 -70 221 -36 32 -101 37 -139 11z\"\/><path d=\"M1163 3073 c-36 -7 -73 -59 -73 -102 0 -56 133 -378 171 -413 34 -32 83 -37 129 -13 70 36 67 87 -16 290 -86 209 -89 214 -129 231 -35 14 -42 15 -82 7z\"\/><path d=\"M3689 3066 c-15 -9 -33 -30 -42 -48 -48 -103 -147 -355 -147 -375 0 -98 131 -148 192 -74 13 15 57 108 97 206 80 196 84 226 37 273 -30 30 -99 39 -137 18z\"\/><path d=\"M583 2784 c-38 -19 -67 -74 -58 -113 9 -42 211 -354 242 -373 16 -10 45 -18 66 -18 51 0 107 52 107 100 0 39 -1 41 -124 234 -80 126 -108 162 -133 173 -41 17 -61 16 -100 -3z\"\/><path d=\"M4250 2784 c-14 -9 -74 -91 -133 -183 -95 -150 -107 -173 -107 -213 0 -55 33 -94 87 -104 67 -13 90 8 211 198 130 202 137 225 78 284 -27 27 -42 34 -72 34 -22 0 -50 -8 -64 -16z\"\/><path d=\"M2275 2693 c-553 -48 -1095 -270 -1585 -649 -135 -104 -459 -423 -483 -476 -23 -49 -22 -139 2 -186 73 -142 361 -457 571 -626 285 -228 642 -407 990 -497 242 -63 336 -73 660 -74 310 0 370 5 595 52 535 111 1045 392 1455 803 122 121 250 273 275 326 19 41 19 137 0 174 -41 79 -309 363 -465 492 -447 370 -946 591 -1479 653 -113 14 -422 18 -536 8z m395 -428 c171 -34 330 -124 456 -258 112 -119 167 -219 211 -378 27 -96 24 -300 -5 -401 -72 -255 -236 -447 -474 -557 -132 -62 -201 -76 -368 -76 -167 0 -236 14 -368 76 -213 98 -373 271 -451 485 -162 444 86 934 547 1084 153 49 292 57 452 25z m909 -232 c222 -123 408 -262 593 -441 76 -74 138 -139 138 -144 0 -16 -233 -242 -330 -319 -155 -123 -309 -223 -461 -299 l-81 -41 32 46 c18 26 49 83 70 128 143 306 141 649 -6 957 -25 52 -61 116 -79 142 l-34 47 45 -20 c26 -10 76 -36 113 -56z m-2057 25 c-40 -58 -105 -190 -130 -263 -110 -324 -59 -707 132 -981 25 -35 42 -64 37 -64 -19 0 -241 119 -326 174 -188 122 -406 314 -532 468 l-58 71 108 103 c185 178 428 349 672 473 66 33 121 60 123 61 2 0 -10 -19 -26 -42z\"\/><path d=\"M2375 1950 c-198 -44 -350 -190 -395 -379 -18 -76 -8 -221 19 -290 114 -284 457 -406 731 -260 98 52 188 154 231 260 27 69 37 214 19 290 -38 163 -166 304 -326 360 -67 23 -215 33 -279 19z\"\/><\/g><\/svg><\/i> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"16\" alt=\"Loading\" src=\"https:\/\/mailsafi.com\/blog\/wp-content\/plugins\/page-views-count\/ajax-loader-2x.gif\" border=0 \/><\/p><div class=\"pvc_clear\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Blacklisting happens for any number of reasons. 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