{"id":22538,"date":"2022-10-26T00:00:00","date_gmt":"2022-10-26T00:00:00","guid":{"rendered":"https:\/\/www.mailgun.com\/blog\/kopfsprung-in-den-posteingang\/"},"modified":"2026-09-16T11:47:26","modified_gmt":"2026-09-16T11:47:26","slug":"kopfsprung-in-den-posteingang","status":"publish","type":"blog","link":"https:\/\/www.mailgun.com\/de\/blog\/deliverability\/kopfsprung-in-den-posteingang\/","title":{"rendered":"Zahlen l\u00fcgen nicht: Welche Faktoren beeinflussen Ihre Zustellbarkeit?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">It\u2019s no secret that many first-time senders struggle with delivery across different mailbox providers. What makes this even more complicated is that your delivery rate might differ from one inbox service provider (ISP) to another. To find out what roadblocks exist for new senders, we set off on a journey to uncover as much information as we could about what impacts deliverability.<\/p>\n\r\n    <nav data-content-type=\"longform\" class=\"toc-block longform-spacings px-5 py-6 px-md-6 px-lg-7 py-md-7 bg-light fs-sm rounded-lg\" aria-labelledby=\"toc-title-4807\"><p class=\"h5 m-0\" id=\"toc-title-4807\">Inhaltsverzeichnis<\/p><div class=\"d-flex mt-3\"><div class=\"w-auto fw-bold text-accent d-flex me-2\">01<\/div><div class=\"d-flex flex-column\"><a class=\"fw-bold scrollme link-body-color text-accent\" href=\"#email-delivery-vs-email-deliverability\">Email delivery vs. email deliverability<\/a><a class=\"scrollme link-body-color\" href=\"#what-is-email-delivery\">What is email delivery?<\/a><a class=\"scrollme link-body-color\" href=\"#what-is-email-deliverability\">What is email deliverability?<\/a><\/div><\/div><div class=\"d-flex mt-3\"><div class=\"w-auto fw-bold text-accent d-flex me-2\">02<\/div><div class=\"d-flex flex-column\"><a class=\"fw-bold scrollme link-body-color text-accent\" href=\"#how-do-i-calculate-my-delivery-rates\">How do I calculate my delivery rates?<\/a><\/div><\/div><div class=\"d-flex mt-3\"><div class=\"w-auto fw-bold text-accent d-flex me-2\">03<\/div><div class=\"d-flex flex-column\"><a class=\"fw-bold scrollme link-body-color text-accent\" href=\"#what-impacts-delivery-rates\">What impacts delivery rates?<\/a><a class=\"scrollme link-body-color\" href=\"#what-is-email-suppression\">What is email suppression?<\/a><a class=\"scrollme link-body-color\" href=\"#what-are-soft-bounces\">What are soft bounces?<\/a><a class=\"scrollme link-body-color\" href=\"#what-are-hard-bounces\">What are hard bounces?<\/a><a class=\"scrollme link-body-color\" href=\"#what-are-hard-complaints\">What are hard Complaints?<\/a><\/div><\/div><div class=\"d-flex mt-3\"><div class=\"w-auto fw-bold text-accent d-flex me-2\">04<\/div><div class=\"d-flex flex-column\"><a class=\"fw-bold scrollme link-body-color text-accent\" href=\"#how-deliverability-tools-can-help\">How deliverability tools can help<\/a><\/div><\/div><\/nav>\n<h2 class=\"wp-block-heading\">Email delivery vs. email deliverability<\/h2>\n\n<p class=\"wp-block-paragraph\">The first step on our journey is to break down email delivery vs email deliverability. These concepts are two sides of the same coin. Email delivery is how you get your messages accepted by your recipient\u2019s mail server and deliverability is about getting your messages into your recipients inbox.<\/p>\n\n<h3 class=\"wp-block-heading\">What is email delivery?<\/h3>\n\n<p class=\"wp-block-paragraph\"><b>Email delivery is the successful process of getting your email message accepted by the receiving mail server. <\/b>Delivery is successful if your user\u2019s ISP accepts your message. Whether it makes it into their inbox (as opposed to their spam folder) is where deliverability comes in.<\/p>\n\n<p class=\"wp-block-paragraph\">In other words, email delivery is all about your message&#8217;s journey right after you hit send until it reaches (and is accepted by) your recipient\u2019s ISP. When you hit send, your email service provider (ESP), like Mailgun or Gmail, carries your message to a sending mail server where your <a href=\"https:\/\/www.mailgun.com\/de\/blog\/deliverability\/e-mail-authentifizierung-ihr-ausweis-fuer-den-versand\/\" target=\"_tabs\" rel=\"noopener noreferrer\">authentication protocols<\/a> are verified. Then, your message is forwarded to an ISP\u2019s receiving mail server where your message is either accepted or rejected.<\/p>\n\n<h3 class=\"wp-block-heading\">What is email deliverability?<\/h3>\n\n<p class=\"wp-block-paragraph\"><b>Email deliverability is the successful process of getting your <\/b><a href=\"https:\/\/www.mailgun.com\/de\/blog\/deliverability\/email-zustellrate-verbessern\/\" target=\"_tabs\" rel=\"noopener noreferrer\"><b>emails into your user\u2019s inbox<\/b><\/a><b>. <\/b>If email delivery is about getting past the bouncer and into the club, email deliverability is about getting into the VIP lounge. Landing in your subscriber\u2019s inbox is no easy feat. Your deliverability, also known as inboxing rate, relies on your sender reputation, IP reputation, and email authentication records. If ISPs say your email doesn\u2019t make the cut, or it looks like it contains spammy content, your message can end up in the spam folder.<\/p>\n\n<p class=\"wp-block-paragraph\">ISPs are notoriously secretive about deliverability, so it\u2019s pretty hard to measure your inboxing rate. However, Mailgun\u2019s <a href=\"https:\/\/www.mailgun.com\/de\/products\/inbox\/inbox-placement\/\" target=\"_tabs\" rel=\"noopener noreferrer\">Inbox Placement tool<\/a> helps you determine the likelihood of your email making it into your reader\u2019s inbox across various email clients. You can also check out our guide on how to <a href=\"https:\/\/www.mailgun.com\/de\/blog\/deliverability\/bessere-e-mail-zustellbarkeit-garantieren\/\" target=\"_tabs\" rel=\"noopener noreferrer\">improve your deliverability<\/a>.<\/p>\n\n<h2 class=\"wp-block-heading\">How do I calculate my delivery rates?<\/h2>\n\n<p class=\"wp-block-paragraph\">While email deliverability is hard to calculate, email delivery is relatively straightforward \u2013 regardless of the type of email that you\u2019re sending, like email newsletters, email marketing campaigns, product announcements, or release notes. Check out this formula:<\/p>\n\n<p class=\"wp-block-paragraph\">Delivery rate = (Number of emails sent &#8211; Number of hard bounces) \/ number of emails sent * 100<\/p>\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" class=\"wp-image-4481\" width=\"1424\" height=\"869\" src=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/Deliverability-Statistics.png\" alt=\"Deliverability Graph Illustration\" srcset=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/Deliverability-Statistics.png 1424w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/Deliverability-Statistics-300x183.png 300w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/Deliverability-Statistics-768x469.png 768w, https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/Deliverability-Statistics-1024x625.png 1024w\" sizes=\"(max-width: 1424px) 100vw, 1424px\" \/><\/figure>\n\n<p class=\"wp-block-paragraph\">To find your delivery rate for any email campaign:<\/p>\n\n<ol class=\"wp-block-list\">\n<li>Take the total number of emails sent.<\/li>\n\n\n\n<li>Subtract the number of hard bounces (or undelivered emails).<\/li>\n\n\n\n<li>Divide all this by the number of emails sent.<\/li>\n\n\n\n<li>Multiply by 100 for your delivery rate as a percentage.<\/li>\n<\/ol>\n    <div data-content-type=\"longform\"  class=\"callout text-body-color px-5 py-6 px-md-6 px-lg-7 py-md-7 longform-spacings rounded-lg bg-light\" data-theme=\"light\">\r\n\r\n        <div class=\"content-body\"> If you want to optimize your delivery data for better decision-making, <a href='https:\/\/www.mailgun.com\/de\/blog\/product\/introducing-inboxready\/'>try utilizing a deliverability suite like Mailgun Optimize<\/a> to test and manage how you land in the inbox.<\/div>\r\n    <\/div>\r\n\n<h2 class=\"wp-block-heading\">What impacts delivery rates?<\/h2>\n\n<p class=\"wp-block-paragraph\">There are two points in the email sending process in which your delivery rate might be impacted: at your sending ESP and at the receiving ISP.<\/p>\n\n<p class=\"wp-block-paragraph\">In short, delivery failure happens when the sending ESP blocks your email message before it gets sent out. Alternatively, the ISP can also stop your email from getting to your user.<\/p>\n\n<p class=\"wp-block-paragraph\">Some of the <a href=\"https:\/\/www.mailgun.com\/de\/blog\/email\/email-metriken\/\" target=\"_tabs\" rel=\"noopener noreferrer\">factors impacting your email delivery<\/a> (and your delivery rate) include:<\/p>\n\n<ol class=\"wp-block-list\">\n<li>Email suppression<\/li>\n\n\n\n<li>Soft bounces<\/li>\n\n\n\n<li>Hard bounces<\/li>\n<\/ol>\n\n<p class=\"wp-block-paragraph\">Let\u2019s get into each of these below.<\/p>\n\n<h3 class=\"wp-block-heading\">What is email suppression?<\/h3>\n\n<p class=\"wp-block-paragraph\">Bounces are obvious obstacles along the email journey, but suppressions shouldn\u2019t be overlooked.<\/p>\n\n<p class=\"wp-block-paragraph\"><b>Emails can be suppressed due to hard bounces, unsubscribes, or complaints.<\/b> Some ESPs, like Mailgun, will try to help your delivery rates by suppressing these emails automatically. But why does Mailgun do this? Just because a user\u2019s email address bounces doesn\u2019t necessarily mean they don\u2019t want to receive information from you anymore.<\/p>\n\n<p class=\"wp-block-paragraph\">Instead of removing customer data from your customer relationship management (CRM) software, <b>ESPs like Mailgun can suppress these invalid email addresses and place them on an email suppression list <\/b>until you decide what to do with them. When you send to an email address that\u2019s on the suppression list, the ESP will refuse to deliver your email message. In this case, since the failure is on your end, you can take action via your ESP to sort out the delivery failure as needed.<\/p>\n\n<h3 class=\"wp-block-heading\">What are soft bounces?<\/h3>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.mailgun.com\/de\/blog\/deliverability\/soft-bounces-mysteries-failures\/\" target=\"_tabs\" rel=\"noopener noreferrer\"><b>Email soft bounces<\/b><\/a><b> are temporary delivery outages<\/b>. Usually, the factors affecting the soft bounce are out of your control. For instance, perhaps your user\u2019s mailbox is too full. Or either the sending or receiving mail server may be temporarily down. Perhaps your ESP is having temporary technical difficulties. Lastly, you might be temporarily disconnected from the internet.<\/p>\n\n<p class=\"wp-block-paragraph\">As you can see, these are all temporary issues that either prevent your ESP from sending your message or an ISP from placing your message. As such, soft bounces are usually temporary failures. Of course, you can always see how <a href=\"https:\/\/www.mailgun.com\/de\/loesungen\/email-bounce-management-software\/\" target=\"_tabs\" rel=\"noopener noreferrer\">bounce management software<\/a> can help you minimize your email soft bounces.<\/p>\n\n<h3 class=\"wp-block-heading\">What are hard bounces?<\/h3>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.mailgun.com\/de\/blog\/deliverability\/hard-bounces-mauern-des-scheiterns\/\" target=\"_tabs\" rel=\"noopener noreferrer\"><b>Email hard bounces<\/b><\/a><b> are permanent delivery fails<\/b> that happen because of various factors along the delivery journey. For instance, you might be trying to send an email message to an invalid email address. Perhaps your sender reputation is in jeopardy with a particular ISP.<\/p>\n\n<p class=\"wp-block-paragraph\">Mailbox providers care about the relationship that you (the sender) have with your email recipients. The more your contacts open your emails, the better your open rate and the more you\u2019ll form a pattern of (good) recurring behavior. Think about it: Reputable senders generally have a loyal customer base that they send to frequently. If this is the first time a segment of your contacts hears from you, don\u2019t expect to be let in immediately.<\/p>\n\n<p class=\"wp-block-paragraph\">At the other end of the spectrum, you\u2019ve got spammers that generally acquire lists in nefarious ways and blast out messages. Since sending to a massive email list of new contacts mimics this behavior, when mailbox providers see a high rate of first-time messages from a single IP, they may get a little trigger-happy and block the IP. At the end of the day, mailbox providers look out for their customers to keep them safe from spammers, which is why they track these sorts of metrics.<\/p>\n\n<p class=\"wp-block-paragraph\">But what does this mean for you? The more spam or abuse complaints you receive, the more bounces you\u2019ll get. Basically, a high bounce rate means that ISPs see a red flag about your email-sending practice. It\u2019s a bit of a chicken-and-egg problem. The more bounces you get, the more bounces you\u2019ll get. But we\u2019ve got you covered. Check out our <a href=\"https:\/\/www.mailgun.com\/de\/loesungen\/email-bounce-management-software\/\" target=\"_tabs\" rel=\"noopener noreferrer\">bounce management system<\/a>, and learn how to<a href=\"https:\/\/www.mailgun.com\/de\/blog\/deliverability\/email-bounces-was-tun\/\" target=\"_tabs\" rel=\"noopener noreferrer\"> minimize your email bounces<\/a>.<\/p>\n\n<h3 class=\"wp-block-heading\">What are hard Complaints?<\/h3>\n\n<p class=\"wp-block-paragraph\">So, what else did we find on our journey to explain deliverability hurdles? Two words: junk mail.<\/p>\n\n<p class=\"wp-block-paragraph\"><b>Unwanted mail can now generate complaints when messages hit the junk folder at different mailbox providers.<\/b> Every time your contacts mark your messages as \u201cJunk\u201d, it\u2019s factored into your overall complaint rate, which considers the number of messages marked as junk, over the number of emails sent in a specific email program.<\/p>\n\n<p class=\"wp-block-paragraph\">Best practices tell us that this complaint rate should be less than 0.1% (one-tenth of one percent) with each ISP, so if your complaint rate is much higher than this, consider going back to your list and check for contacts with low engagement for future email sends. <b>Keeping track of your complaint rate as a performance indicator provides great insights into user behavior<\/b> \u2013 and Mailgun captures these complaints which means you\u2019re in a better position to offset junk mail complaints.<\/p>\n\n<h2 class=\"wp-block-heading\">How deliverability tools can help<\/h2>\n\n<p class=\"wp-block-paragraph\">You\u2019re not alone if you\u2019ve been experiencing issues with delivery across different mailbox providers. With the findings we\u2019ve shared here, we hope that you can get things back on track and, at the very least, have more clarity around what\u2019s happening to your messages when they reach the inbox.<\/p>\n\n<p class=\"wp-block-paragraph\">If this all sounds like too much to handle solo don\u2019t worry, we\u2019d never leave you to journey alone. <a href=\"https:\/\/www.mailgun.com\/de\/blog\/product\/introducing-inboxready\/\" target=\"_tabs\" rel=\"noopener noreferrer\">Check out our Mailgun Optimize suite of deliverability tools<\/a>, and let us help you proactively monitor your account and achieve better deliverability. <a href=\"https:\/\/www.mailgun.com\/de\/preise\/\" target=\"_tabs\" rel=\"noopener noreferrer\">Try us out<\/a> for free!<\/p>\n\r\n    <aside data-content-type=\"longform\"  class=\"banner-block longform-spacings rounded-lg shadow-lg px-5 py-6 px-md-6 py-md-7 p-lg-7 bg-light\" data-theme=\"dark\" aria-labelledby=\"banner-block-block_ddc11a9a9c1a64a3c61c6c08c1b5d893\">\r\n                    <p class=\"text-uppercase section-caption text-body-color\">\r\n                Try Mailgun Optimize            <\/p>\r\n                            <p class=\"h4 text-accent fw-bold\" id=\"banner-block-block_ddc11a9a9c1a64a3c61c6c08c1b5d893\">\r\n                It&#8217;s easy to get started. And it&#8217;s free.            <\/p>\r\n                            <div class=\"mb-0 text-body-color\">\r\n                                    <div class=\"content-body mb-0 text-body-color\">See what you can accomplish with the world\u2019s best email delivery platform.<\/div>\r\n                            <\/div>\r\n        \r\n        <div class=\"text-start mt-5\"><a href=\"https:\/\/signup.mailgun.com\/new\/signup\"  class=\"btn btn-secondary\" >Get started<\/a><\/div>\r\n    <\/aside>\r\n\r\n","protected":false},"excerpt":{"rendered":"<p>E-Mail-Zustellung und E-Mail-Zustellbarkeit. Obwohl diese beiden Begriffe \u00e4hnlich klingen, k\u00f6nnten die Konzepte dahinter kaum unterschiedlicher sein. Dennoch beeinflussen sie sich gegenseitig sowie Metriken wie Ihre E-Mail-Zustellrate und Beschwerderaten. Ihre E-Mail-Nachrichten begeben sich bei jedem Klick auf &#8222;Senden&#8220; auf eine Reise. Lesen Sie weiter und erfahren Sie, wie Sie Hindernisse auf dem Weg \u00fcberwinden (insbesondere, wenn Sie neu als Absender sind).<\/p>\n","protected":false},"author":20,"featured_media":4376,"menu_order":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"blog_category":[21],"class_list":["post-22538","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-deliverability"],"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-Zustellrate mit Mailgun und Mailgun Optimize verbessern - Transactional Email API Service For Developers | Mailgun<\/title>\n<meta name=\"description\" content=\"Erfahren Sie, wie neue Absender die H\u00fcrden von neuen E-Mail-Listen und Spam-Beschwerderaten \u00fcberwinden k\u00f6nnen, um ihre Zustellraten bei verschiedenen E-Mail-Anbietern zu verbessern.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.mailgun.com\/de\/blog\/deliverability\/kopfsprung-in-den-posteingang\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"E-Mail-Zustellrate mit Mailgun und Mailgun Optimize verbessern - Transactional Email API Service For Developers | Mailgun\" \/>\n<meta property=\"og:description\" content=\"Erfahren Sie, wie neue Absender die H\u00fcrden von neuen E-Mail-Listen und Spam-Beschwerderaten \u00fcberwinden k\u00f6nnen, um ihre Zustellraten bei verschiedenen E-Mail-Anbietern zu verbessern.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.mailgun.com\/de\/blog\/deliverability\/kopfsprung-in-den-posteingang\/\" \/>\n<meta property=\"og:site_name\" content=\"Transactional Email API Service For Developers | Mailgun\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-16T11:47:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.mailgun.com\/wp-content\/uploads\/2025\/07\/MG-Blog-Deliverability.png\" \/>\n\t<meta property=\"og:image:width\" content=\"720\" \/>\n\t<meta property=\"og:image:height\" content=\"448\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"7\u00a0Minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.mailgun.com\\\/de\\\/blog\\\/deliverability\\\/kopfsprung-in-den-posteingang\\\/\",\"url\":\"https:\\\/\\\/www.mailgun.com\\\/de\\\/blog\\\/deliverability\\\/kopfsprung-in-den-posteingang\\\/\",\"name\":\"E-Mail-Zustellrate mit Mailgun und Mailgun Optimize verbessern - 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