{"id":84903,"date":"2025-05-06T19:29:58","date_gmt":"2025-05-06T19:29:58","guid":{"rendered":"https:\/\/mailrelay.com\/glossary\/complaint\/"},"modified":"2025-05-06T19:30:01","modified_gmt":"2025-05-06T19:30:01","slug":"complaint","status":"publish","type":"glossary","link":"https:\/\/mailrelay.com\/en\/glossary\/complaint\/","title":{"rendered":"Complaint"},"content":{"rendered":"\n<p>The term &#8220;<strong>complaint<\/strong>&#8221; in <a href=\"https:\/\/mailrelay.com\/en\/\" target=\"_blank\" rel=\"noreferrer noopener\">email marketing <\/a> refers to a complaint generated when a recipient flags an email as <a href=\"https:\/\/mailrelay.com\/en\/glossary\/spam\/\" target=\"_blank\" rel=\"noreferrer noopener\">spam<\/a>. <\/p>\n\n<p>This report is sent to the <a href=\"https:\/\/mailrelay.com\/en\/glossary\/email-service-provider-esp\/&lt;br&gt;\" target=\"_blank\" rel=\"noreferrer noopener\">email providers (<\/a> Gmail, Outlook, Yahoo, among others). <strong><em>(Gmail, Outlook, Yahoo, among others)<\/em><\/strong> and directly affects the sender&#8217;s reputation. <\/p>\n\n<p>A <strong>high number of complaints can cause future emails to be filtered into the spam folder <\/strong> or, in the worst case, <strong>the domain or IP to be blocked.<\/strong><\/p>\n\n<h2 class=\"wp-block-heading\">Why are complaints generated in email marketing?<\/h2>\n\n<p>Complaints in email marketing may occur for several reasons, such as:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Lack of consent: <\/strong> sending emails without the user\u2019s explicit authorization is one of the main causes of complaints.<\/li>\n\n\n\n<li><strong>Excessive sending frequency: <\/strong> overwhelming subscribers with too many emails can make them feel overwhelmed and lead them to mark the emails as spam.<\/li>\n\n\n\n<li><strong>Irrelevant or misleading content: <\/strong> if the content provides no value or doesn&#8217;t match what the user expects, the probability of receiving complaints increases.<\/li>\n\n\n\n<li><strong>Misleading email subject lines: <\/strong> using <a href=\"https:\/\/mailrelay.com\/en\/glossary\/clickbait\/\" target=\"_blank\" rel=\"noreferrer noopener\">clickbait <\/a> or manipulation techniques in the email subject generates distrust.<\/li>\n\n\n\n<li><strong>Complicated unsubscribe process: <\/strong> if the user can&#8217;t easily find the option to unsubscribe, they may choose to report the email as spam.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Consequences of a high number of complaints<\/h2>\n\n<p>A high percentage of complaints in an email marketing campaign can have serious repercussions:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Reduction in deliverability: <\/strong> email providers interpret complaints as a signal that the sender is potentially malicious and may filter their emails as spam.<\/li>\n\n\n\n<li><strong>Blocking of IP address or domain: <\/strong> if complaints are too frequent, email servers may fully block messages from that source.<\/li>\n\n\n\n<li><strong>Deterioration of the sender&#8217;s reputation: <\/strong> ISPs (Internet Service Providers) monitor sender quality and assign a reputation according to the number of complaints received.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">How to reduce complaints in email marketing?<\/h2>\n\n<p>To avoid complaints and improve the effectiveness of your email marketing campaigns, follow these practices:<\/p>\n\n<h3 class=\"wp-block-heading\">Use double opt-in subscriber lists<\/h3>\n\n<p>Implementing a <a href=\"https:\/\/mailrelay.com\/en\/glossary\/double-opt-in\/\" target=\"_blank\" rel=\"noreferrer noopener\">double opt-in <\/a> system ensures that users truly want to receive your emails and reduces the likelihood that they will mark messages as spam.<\/p>\n\n<h3 class=\"wp-block-heading\">Send relevant and personalized content<\/h3>\n\n<p>Segment your database and offer content tailored to each user&#8217;s interests. <\/p>\n\n<p>Personalization is key to maintaining engagement and reducing complaints.<\/p>\n\n<h3 class=\"wp-block-heading\">Establish an appropriate sending frequency<\/h3>\n\n<p>Analyze your subscribers&#8217; engagement rates to determine the ideal sending frequency. <\/p>\n\n<p>Avoid excessive emails to prevent overwhelming the user&#8217;s inbox.<\/p>\n\n<h3 class=\"wp-block-heading\">Avoid misleading subject lines<\/h3>\n\n<p>The email subject line should accurately reflect the message content. <\/p>\n\n<p>Avoid exaggerated words or false promises that can generate frustration and increase complaints.<\/p>\n\n<h3 class=\"wp-block-heading\">Include a visible unsubscribe button<\/h3>\n\n<p>Make sure the unsubscribe link is easily accessible and works properly. <\/p>\n\n<p>If users can easily unsubscribe, they are less likely to report emails as spam.<\/p>\n\n<h3 class=\"wp-block-heading\">Monitor complaints regularly<\/h3>\n\n<p>Use email marketing tools that allow you to track complaints and other key indicators. <\/p>\n\n<p>If you notice an increase in complaints, review your strategy and adjust the content or sending frequency.<\/p>\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n<p>Complaints in email marketing are a warning sign that should not be ignored. <\/p>\n\n<p><strong>A high number of complaints can affect the sender&#8217;s reputation and reduce the effectiveness of email campaigns. <\/strong><\/p>\n\n<p>To minimize them, it is essential to obtain user consent, offer valuable content, maintain an appropriate sending frequency, and facilitate unsubscribing.<\/p>\n\n<p>Managing complaints is key to improving deliverability and maintaining a healthy relationship with subscribers.<\/p>\n","protected":false},"template":"","class_list":["post-84903","glossary","type-glossary","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ 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term &#8220;complaint&#8221; in email marketing refers to a complaint generated when a recipient flags an email as spam. This report is sent to the email providers ( Gmail, Outlook, Yahoo, among others). (Gmail, Outlook, Yahoo, among others) and directly affects the sender&#8217;s reputation. A high number of complaints can cause future emails to be&hellip;","_links":{"self":[{"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/glossary\/84903","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/glossary\/84903\/revisions"}],"predecessor-version":[{"id":84904,"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/glossary\/84903\/revisions\/84904"}],"wp:attachment":[{"href":"https:\/\/mailrelay.com\/en\/wp-json\/wp\/v2\/media?parent=84903"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}