{"id":17467,"date":"2026-08-27T03:25:15","date_gmt":"2026-08-27T03:25:15","guid":{"rendered":"https:\/\/www.mailgun.com\/resources\/videos\/email-validierung-101\/"},"modified":"2026-08-27T03:25:15","modified_gmt":"2026-08-27T03:25:15","slug":"email-validierung-101","status":"publish","type":"videos","link":"https:\/\/www.mailgun.com\/de\/ressourcen\/videos\/email-validierung-101\/","title":{"rendered":"E-Mail-Validierung 101: Die verborgenen Risiken beim Versand an alte Listen"},"content":{"rendered":"\r\n    <section data-content-type=\"component\" class=\"header-block section-py bg-light-subtle\" data-theme=\"dark\">\r\n        <div class=\"container header-block-container\">\r\n\r\n            \r\n            <div class=\"row align-items-center\">\r\n                <div class=\"col-12 col-lg-5 col-md-6\">\r\n                    <div class=\"d-flex flex-column gap-3 gap-md-4\">\r\n                        <div>\r\n                                                            <p class=\"text-uppercase section-caption text-body-color\">Videos und Webinare<\/p>\r\n                            \r\n                            \r\n                            <h1 class=\"text-accent m-0 p-0 h2\">\r\n                                E-Mail-Validierung 101: Die verborgenen Risiken beim Versand an alte Listen                            <\/h1>\r\n                        <\/div>\r\n\r\n                                                    <div class=\"content-body mb-0 text-body-color\">Die Zustellung Ihrer E-Mails an Ihre Zielgruppe beginnt mit einer sauberen Liste<\/div>\r\n                        \r\n                        \r\n                        \r\n                        \r\n                                            <\/div>\r\n                <\/div>\r\n\r\n                                    <div class=\"col-12 col-lg-7 col-md-6 mt-5 mt-md-0 ps-md-7 ps-lg-10 text-md-end\">\r\n\r\n                        \r\n                            \r\n                                                            \r\n                                \t<div class=\"custom-video\">\r\n\t\t\t\t\t                    <div class=\"iframe-responsive-container lazy-video rounded-lg overflow-hidden \">\r\n                <a href=\"https:\/\/www.youtube.com\/watch?v=_WTpHavu3RI\" class=\"lazy-video-link\" data-lazy-video=\"_WTpHavu3RI\" target=\"_blank\" rel=\"nofollow\" role=\"button\" data-source=\"youtube\" data-language=\"de\" data-thumb=\"https:\/\/img.youtube.com\/vi\/_WTpHavu3RI\/maxresdefault.jpg\" title=\"Sinch-Video\">\r\n                    <div class=\"btn btn-light btn-light-social btn-play btn-play-circle\">\r\n                                                    <svg aria-hidden=\"true\" data-url=\"https:\/\/www.mailgun.com\/wp-content\/plugins\/sinch-core\/assets\/icons\/sinch\/play.svg\"><\/svg>\r\n                                            <\/div>\r\n                    <img decoding=\"async\"  src=\"https:\/\/img.youtube.com\/vi\/_WTpHavu3RI\/maxresdefault.jpg\" alt=\"Email Validation 101: the hidden risks of sending to old lists\">\r\n                <\/a>\r\n            <\/div>\r\n                        <script type=\"application\/ld+json\">\r\n            {\n    \"@context\": \"http:\/\/schema.org\",\n    \"@type\": \"VideoObject\",\n    \"@id\": \"https:\/\/www.youtube.com\/watch?v=_WTpHavu3RI#VideoObject\",\n    \"thumbnailUrl\": \"https:\/\/img.youtube.com\/vi\/_WTpHavu3RI\/maxresdefault.jpg\",\n    \"embedUrl\": \"https:\/\/www.youtube.com\/embed\/_WTpHavu3RI\",\n    \"contentUrl\": \"https:\/\/www.youtube.com\/watch?v=_WTpHavu3RI\",\n    \"name\": \"Email Validation 101: the hidden risks of sending to old lists\",\n    \"description\": \"Getting your email messages to your target audience starts with a clean email list. But what exactly should you be checking for in your list, and how can email validation help? In this video, JT and Nick cover the top things ISPs look for when deciding if they will deliver your messages to the inbox.\",\n    \"uploadDate\": \"2018-10-17T19:59:25+00:00\",\n    \"duration\": \"PT2M50S\"\n}        <\/script>\r\n        \t\t\r\n\t\t\t<\/div>\r\n\r\n\t\r\n\r\n                                                                                \r\n                    <\/div>\r\n                \r\n            <\/div>\r\n        <\/div>\r\n\r\n                            \r\n        \r\n        \r\n    <\/section>\r\n\n\n\r\n    <section data-content-type=\"component\" id=\"block-2b7a7de86fb2b64cc6ffee18921f6457\" class=\"section section-altblo section-py bg-body\" data-theme=\"light\">\r\n        <div class=\"container\">\r\n            <div class=\"row align-items-center \">\r\n                                    <div class=\"col-12 col-lg-5\">\r\n                        <div class=\"d-flex flex-column gap-3 gap-lg-4\">\r\n\r\n                                    <div>\r\n            \r\n                            <h2 class=\"mb-0 h3\">\u00dcber diese Folge:<\/h2>\r\n                    <\/div>\r\n\r\n\r\n                                                            <div class=\"content-body mb-0 text-body-color\"><p>Die Zustellung Ihrer E-Mail-Nachrichten an Ihre Zielgruppe beginnt mit einer sauberen E-Mail-Liste. Aber worauf genau sollten Sie in Ihrer Liste achten, und wie kann E-Mail-Validierung helfen? In diesem Video behandeln JT und Nick die wichtigsten Dinge, auf die ISPs achten, wenn sie entscheiden, ob sie Ihre Nachrichten in den Posteingang zustellen.<\/p><\/div>\r\n                            \r\n                            \r\n                            \r\n                            \r\n                        <\/div>\r\n                    <\/div>\r\n                                <div class=\"col-12 col-lg-7 mt-5 mt-md-7 mt-lg-0 ps-lg-10\">\r\n\r\n                                            \n    \r\n        \r\n        <div class=\"row gy-6 gy-md-7 gy-lg-9\">\r\n            \r\n                <div class=\"col-12 text-start col-md-6\">\r\n                    <img decoding=\"async\" class=\"rounded-lg mb-4 mb-md-5 img-fluid\" width=\"224\" height=\"160\" src=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/jonathan-torres_headshot.png\" alt=\"Bild von \">\r\n\r\n                                            <p class=\"fw-bold text-accent mb-0\">Jonathan Torres<\/p>\r\n                    \r\n                                            <p class=\"mb-0\">Technical Account Manager, Manager bei Sinch Mailgun<\/p>\r\n                    \r\n                                            <p class=\"mb-0\">Sinch<\/p>\r\n                                    <\/div>\r\n            \r\n                <div class=\"col-12 text-start col-md-6\">\r\n                    <img decoding=\"async\" class=\"rounded-lg mb-4 mb-md-5 img-fluid\" width=\"224\" height=\"160\" src=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/nick-schafer_headshot.png\" alt=\"Bild von \">\r\n\r\n                                            <p class=\"fw-bold text-accent mb-0\">Nick Schafer<\/p>\r\n                    \r\n                                            <p class=\"mb-0\">Senior Manager Zustellbarkeit und Compliance, Sinch Mailgun<\/p>\r\n                    \r\n                                            <p class=\"mb-0\">Sinch<\/p>\r\n                                    <\/div>\r\n                    <\/div>\r\n\r\n\n\r\n                    \r\n                <\/div>\r\n            <\/div>\r\n\r\n            \r\n            \r\n            \r\n                            <div class=\"mt-6 mt-md-7 mt-lg-9\">\r\n                        <div class=\"\">\r\n        <div class=\"row justify-content-center\">\r\n                            <div class=\"col-lg-5 d-none d-lg-block\">\r\n                    <div class=\"position-relative h-100\">\r\n                        <img decoding=\"async\" src=\"https:\/\/www.mailgun.com\/wp-content\/plugins\/sinch-core\/assets\/images\/blocks\/cta\/cta-subscribe.jpg\" alt=\"Call To Action Graphic\" class=\"cta-image w-100 h-100 rounded-lg\" width=\"100%\" height=\"100%\">\r\n\r\n                                                    <div class=\"cta-icon cta-icon-image text-accent bg-body rounded p-3\" data-theme=\"light\">\r\n                                <svg width=\"48\" height=\"48\" data-url=\"https:\/\/www.mailgun.com\/wp-content\/plugins\/sinch-core\/assets\/icons\/sinch\/email.svg\" aria-hidden=\"true\"><\/svg>\r\n                            <\/div>\r\n                                            <\/div>\r\n                <\/div>\r\n                        <div class=\"col-12 col-lg-7\">\r\n                <div class=\"cta bg-primary rounded-lg px-5 py-7 p-md-9\">\r\n                                                    <div class=\"form-subscription\">\r\n                            <div class=\"h4 mb-3\">\r\n                    Bleiben Sie informiert! Erhalten Sie jede Woche wertvolle Inhalte direkt in Ihr Posteingang.                <\/div>\r\n                                    <form accept-charset=\"UTF-8\" action=\"\" enctype=\"multipart\/form-data\" data-form-subscription method=\"POST\" style=\"max-width: 400px;\">\r\n                <div class=\"row justify-content-between align-items-top g-2\">\r\n                    <div class=\"col-10\">\r\n                        <input type=\"email\" name=\"email\" class=\"form-control\" placeholder=\"Email\" autocomplete=\"email\" required>\r\n                        <div data-fs=\"error\" role=\"alert\" class=\"invalid-feedback\">\r\n                            Please complete this required field.                        <\/div>\r\n                    <\/div>\r\n                                            <div class=\"col-12 order-last mt-3 fs-xxs\" data-fs=\"acceptance\" style=\"display:none;\">\r\n                            \r\n                                <div class=\"form-check\">\r\n                                    <input id=\"formSubscriptionAcceptance-terms-4760\" class=\"form-check-input\"\r\n                                        type=\"checkbox\" name=\"terms\">\r\n                                    <label for=\"formSubscriptionAcceptance-terms-4760\" class=\"form-check-label text-body-color\">\r\n                                        Ich habe die Servicebedingungen gelesen und stimme ihnen zu.                                        <span class=\"hs-form-required\">*<\/span>\r\n                                    <\/label>\r\n                                <\/div>\r\n\r\n                            \r\n                                <div class=\"form-check\">\r\n                                    <input id=\"formSubscriptionAcceptance-privacy-1617\" class=\"form-check-input\"\r\n                                        type=\"checkbox\" name=\"privacy\">\r\n                                    <label for=\"formSubscriptionAcceptance-privacy-1617\" class=\"form-check-label text-body-color\">\r\n                                        Ich habe die Datenschutzerkl\u00e4rung gelesen und bin damit einverstanden.                                        <span class=\"hs-form-required\">*<\/span>\r\n                                    <\/label>\r\n                                <\/div>\r\n\r\n                                                    <\/div>\r\n                    \r\n                                            <div class=\"col-12 order-last fs-xxs mb-0 mt-2 text-body-color\">\r\n                            Ja, ich m\u00f6chte den Mailgun-Newsletter erhalten. Ich bin mit dem Erhalt des Newsletters einverstanden und wei\u00df, dass ich mich jederzeit unkompliziert wieder abmelden kann.                        <\/div>\r\n                    \r\n                    <div class=\"col-2\">\r\n                        <button type=\"submit\" value=\"Submit\" aria-label=\"Submit\" class=\"btn btn-secondary btn-icon\">\r\n                            <svg aria-hidden=\"true\" data-url=\"https:\/\/www.mailgun.com\/wp-content\/plugins\/sinch-core\/assets\/icons\/layout\/chevron-right.svg\"><\/svg>\r\n                        <\/button>\r\n                    <\/div>\r\n                <\/div>\r\n\r\n                <input type=\"hidden\" name=\"formSubscriptionRecaptchaToken\" data-fs=\"recaptcha-token\">\r\n                <input type=\"hidden\" name=\"customListID\" value=\"\">\r\n\r\n            <\/form>\r\n            <div data-fs=\"message-success\" style=\"display: none;\">\r\n                <p class=\"mb-0 mt-2 text-body-color\">\r\n                    Jeden Monat neu: Ihr Mailgun-Newsletter wartet in Ihrem Postfach!                <\/p>\r\n            <\/div>\r\n        <\/div>\r\n                                    <\/div>\r\n            <\/div>\r\n        <\/div>\r\n    <\/div>\r\n                <\/div>\r\n                    <\/div>\r\n    <\/section>\r\n\r\n","protected":false},"author":3,"featured_media":10864,"template":"","meta":{"_acf_changed":true},"videos_webinars_category":[79],"class_list":["post-17467","videos","type-videos","status-publish","has-post-thumbnail","hentry","videos_webinars_category-video"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>E-Mail-Validierung 101: Die verborgenen Risiken beim Versand an alte Listen - Transactional Email API Service For Developers | Mailgun<\/title>\n<meta name=\"description\" content=\"Die Zustellung Ihrer E-Mail-Nachrichten an Ihre Zielgruppe beginnt mit einer sauberen E-Mail-Liste. 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