{"id":359,"date":"2026-07-08T08:50:55","date_gmt":"2026-07-08T08:50:55","guid":{"rendered":"https:\/\/rbl.watch\/blog\/hard-soft-bounce-nedir-bounce-yonetimi-liste-hijyeni\/"},"modified":"2026-07-08T08:50:55","modified_gmt":"2026-07-08T08:50:55","slug":"hard-soft-bounce-nedir-bounce-yonetimi-liste-hijyeni","status":"publish","type":"post","link":"https:\/\/rbl.watch\/blog\/hard-soft-bounce-nedir-bounce-yonetimi-liste-hijyeni\/","title":{"rendered":"Hard Bounce ve Soft Bounce Nedir? Bounce Y\u00f6netimi ve Liste Hijyeni Rehberi"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">&#8220;Undelivered Mail Returned to Sender&#8221; \u2014 g\u00f6nderdi\u011finiz bir e-postan\u0131n geri d\u00f6nd\u00fc\u011f\u00fcn\u00fc g\u00f6steren bu bildirim, tek ba\u015f\u0131na zarars\u0131z g\u00f6r\u00fcn\u00fcr. Ama y\u00fcksek <strong>bounce (geri d\u00f6nme) oran\u0131<\/strong>, al\u0131c\u0131 sa\u011flay\u0131c\u0131lar\u0131n g\u00f6z\u00fcnde k\u00f6t\u00fc liste kalitesinin en net i\u015faretidir ve g\u00f6nderici itibar\u0131n\u0131z\u0131 h\u0131zla d\u00fc\u015f\u00fcrerek sizi spam klas\u00f6r\u00fcne, hatta <a href=\"\/blog\/spam-tuzagi-spam-trap-nedir-korunma-rehberi\/\">kara listeye<\/a> ta\u015f\u0131yabilir. Bu rehberde hard ve soft bounce fark\u0131n\u0131, SMTP bounce kodlar\u0131n\u0131 nas\u0131l okuyaca\u011f\u0131n\u0131z\u0131 ve bounce&#8217;lar\u0131 y\u00f6neterek itibar\u0131n\u0131z\u0131 nas\u0131l koruyaca\u011f\u0131n\u0131z\u0131 anlat\u0131yoruz.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Bounce (Geri D\u00f6nen E-posta) Nedir?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bounce, bir e-postan\u0131n al\u0131c\u0131 sunucu taraf\u0131ndan teslim edilemeyip g\u00f6nderene geri d\u00f6nd\u00fcr\u00fclmesidir. Al\u0131c\u0131 sunucu, teslimat\u0131 reddetti\u011finde bir <strong>NDR (Non-Delivery Report)<\/strong> \u00fcretir ve genellikle bir SMTP durum kodu ile sebebini bildirir. Bounce&#8217;lar iki temel gruba ayr\u0131l\u0131r: <strong>hard bounce<\/strong> (kal\u0131c\u0131) ve <strong>soft bounce<\/strong> (ge\u00e7ici).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Hard Bounce ve Soft Bounce Fark\u0131<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Hard bounce (kal\u0131c\u0131 hata):<\/strong> Adres kal\u0131c\u0131 olarak teslim edilemez \u2014 var olmayan kullan\u0131c\u0131, ge\u00e7ersiz veya kapanm\u0131\u015f alan ad\u0131. Bu adresleri <strong>an\u0131nda ve kal\u0131c\u0131 olarak<\/strong> listenizden \u00e7\u0131kar\u0131n.<\/li>\n<li><strong>Soft bounce (ge\u00e7ici hata):<\/strong> Ge\u00e7ici bir sorun \u2014 dolu posta kutusu, sunucunun ge\u00e7ici eri\u015filemezli\u011fi, greylisting veya \u00e7ok b\u00fcy\u00fck mesaj. Birka\u00e7 kez yeniden denenebilir; ancak <strong>tekrarlayan<\/strong> soft bounce&#8217;lar\u0131 hard bounce gibi de\u011ferlendirip \u00e7\u0131kar\u0131n.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">SMTP Bounce Kodlar\u0131n\u0131 Okumak<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">NDR mesajlar\u0131ndaki kod, sorunun kal\u0131c\u0131 m\u0131 ge\u00e7ici mi oldu\u011funu s\u00f6yler: <strong>4xx<\/strong> ge\u00e7ici (soft), <strong>5xx<\/strong> kal\u0131c\u0131d\u0131r (hard). Yayg\u0131n \u00f6rnekler:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Kod<\/th><th>T\u00fcr<\/th><th>Anlam\u0131<\/th><\/tr><\/thead><tbody>\n<tr><td>550<\/td><td>Hard<\/td><td>Kullan\u0131c\u0131\/kutu yok (no such user)<\/td><\/tr>\n<tr><td>551 \/ 5.1.1<\/td><td>Hard<\/td><td>Al\u0131c\u0131 burada de\u011fil \/ adres ge\u00e7ersiz<\/td><\/tr>\n<tr><td>552<\/td><td>Soft\u2192Hard<\/td><td>Posta kutusu dolu (kota a\u015f\u0131m\u0131)<\/td><\/tr>\n<tr><td>421<\/td><td>Soft<\/td><td>Sunucu ge\u00e7ici hizmet d\u0131\u015f\u0131 \/ throttling<\/td><\/tr>\n<tr><td>450 \/ 4.2.1<\/td><td>Soft<\/td><td>Kutu ge\u00e7ici eri\u015filemez \/ greylisting<\/td><\/tr>\n<tr><td>554<\/td><td>Hard<\/td><td>\u0130\u015flem ba\u015far\u0131s\u0131z (s\u0131k s\u0131k itibar\/spam reddi)<\/td><\/tr>\n<\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Not: <code>554<\/code> veya <code>550<\/code> yan\u0131tlar\u0131 bazen &#8220;spam olarak reddedildi&#8221; ya da &#8220;IP kara listede&#8221; anlam\u0131na gelir. Bu t\u00fcr itibar kaynakl\u0131 retleri g\u00f6r\u00fcyorsan\u0131z g\u00f6nderici IP&#8217;nizin durumunu mutlaka <a href=\"\/blacklist-check\">kara listede sorgulay\u0131n<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Y\u00fcksek Bounce Oran\u0131 Neden Tehlikeli?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Y\u00fcksek hard bounce, listenizin izinsiz\/eski oldu\u011funun sinyalidir; sa\u011flay\u0131c\u0131lar itibar\u0131n\u0131z\u0131 d\u00fc\u015f\u00fcr\u00fcr.<\/li>\n<li>Var olmayan adreslere \u0131srarla g\u00f6ndermek, <a href=\"\/blog\/spam-tuzagi-spam-trap-nedir-korunma-rehberi\/\">geri d\u00f6n\u00fc\u015ft\u00fcr\u00fclm\u00fc\u015f spam tuzaklar\u0131na<\/a> d\u00fc\u015fme riskini art\u0131r\u0131r (bu adresler \u00f6nce hard bounce verir, sonra tuza\u011fa d\u00f6ner).<\/li>\n<li>Bounce oran\u0131, kara listeye d\u00fc\u015fmenin <a href=\"\/blog\/ip-adresiniz-neden-kara-listeye-duser-10-yaygin-sebep\/\">yayg\u0131n sebeplerinden<\/a> biridir. Hedef: bounce oran\u0131n\u0131 <strong>%2&#8217;nin alt\u0131nda<\/strong> tutmak.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Bounce Y\u00f6netimi: Ad\u0131m Ad\u0131m<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>NDR&#8217;leri toplay\u0131n ve ayr\u0131\u015ft\u0131r\u0131n.<\/strong> Geri d\u00f6nen mesajlar\u0131 bir bounce posta kutusunda toplay\u0131n ve SMTP kodunu okuyacak \u015fekilde otomatik i\u015fleyin.<\/li>\n<li><strong>S\u0131n\u0131fland\u0131r\u0131n.<\/strong> 5xx \u2192 hard, 4xx \u2192 soft olarak etiketleyin.<\/li>\n<li><strong>Hard bounce&#8217;lar\u0131 an\u0131nda bask\u0131lay\u0131n.<\/strong> Bu adreslere bir daha asla g\u00f6ndermeyin (kal\u0131c\u0131 suppression listesi).<\/li>\n<li><strong>Soft bounce&#8217;lara s\u0131n\u0131rl\u0131 yeniden deneme uygulay\u0131n.<\/strong> Belirli say\u0131da (\u00f6rn. 3\u20135) denemeden sonra h\u00e2l\u00e2 d\u00f6n\u00fcyorsa hard gibi \u00e7\u0131kar\u0131n.<\/li>\n<li><strong>Bounce oran\u0131n\u0131 izleyin.<\/strong> Ani art\u0131\u015flar bir sorunun (k\u00f6t\u00fc liste, itibar reddi) habercisidir.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">NDR&#8217;leri d\u00fczg\u00fcn \u00fcreten ve i\u015fleyen y\u00f6netilen bir <a href=\"https:\/\/www.ihs.com.tr\/sunucu-kiralama\/zimbra-mail-sunucusu.html\" target=\"_blank\" rel=\"noopener\">Zimbra mail sunucusu<\/a> veya kendi g\u00f6nderim kontrol\u00fcn\u00fcz i\u00e7in <a href=\"https:\/\/www.ihs.com.tr\/sunucu-kiralama\/vps-server.html\" target=\"_blank\" rel=\"noopener\">dedicated IP&#8217;li bir VPS<\/a> bu s\u00fcreci kolayla\u015ft\u0131r\u0131r.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Liste Hijyeni ve Sunset Politikas\u0131<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bounce y\u00f6netimi, sorunlar\u0131 <em>sonradan<\/em> temizler; as\u0131l hedef bounce&#8217;\u0131 ba\u015ftan azaltmakt\u0131r:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Kay\u0131t an\u0131nda do\u011frulama + \u00e7ift opt-in:<\/strong> Ge\u00e7ersiz ve yaz\u0131m hatal\u0131 adresleri kap\u0131da durdurur.<\/li>\n<li><strong>Sunset (g\u00fcn bat\u0131m\u0131) politikas\u0131:<\/strong> Uzun s\u00fcredir a\u00e7mayan\/etkile\u015fimsiz aboneleri d\u00fczenli ay\u0131klay\u0131n.<\/li>\n<li><strong>Asla liste sat\u0131n almay\u0131n:<\/strong> Sat\u0131n al\u0131nan listeler y\u00fcksek bounce ve tuzak kayna\u011f\u0131d\u0131r.<\/li>\n<li><strong>Yeni IP&#8217;lerde dikkat:<\/strong> <a href=\"\/blog\/ip-isitma-ip-warming-nedir-rehberi\/\">IP \u0131s\u0131tmas\u0131<\/a> s\u0131ras\u0131nda bounce&#8217;\u0131 d\u00fc\u015f\u00fck tutmak kritiktir.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u0130lgili Metrikleri \u0130zleme<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bounce oran\u0131n\u0131; \u015fik\u00e2yet oran\u0131 (<a href=\"\/blog\/feedback-loop-fbl-nedir-sikayet-yonetimi-rehberi\/\">feedback loop<\/a>), <a href=\"\/blog\/gmail-postmaster-tools-rehberi-itibar-izleme\/\">Gmail Postmaster Tools<\/a> verileri ve g\u00f6nderici IP&#8217;nizin kara liste durumuyla birlikte de\u011ferlendirin. Altyap\u0131n\u0131z\u0131n b\u00fct\u00fcn\u00fcn\u00fc (SPF\/DKIM\/DMARC + rDNS + itibar) <a href=\"\/tools\/e-posta-saglik-kontrolu\">e-posta sa\u011fl\u0131k kontrol\u00fc<\/a> ile tek raporda g\u00f6rebilirsiniz.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">S\u0131k Sorulan Sorular<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Kabul edilebilir bounce oran\u0131 nedir?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Genel hedef %2&#8217;nin alt\u0131d\u0131r; sa\u011fl\u0131kl\u0131, izinli listelerde bu oran \u00e7ok daha d\u00fc\u015f\u00fck olur. Ani bir y\u00fckseli\u015f g\u00f6r\u00fcrseniz g\u00f6nderim durdurup listeyi ve itibar\u0131n\u0131z\u0131 g\u00f6zden ge\u00e7irin.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Soft bounce&#8217;lar\u0131 da \u00e7\u0131karmal\u0131 m\u0131y\u0131m?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0130lk soft bounce&#8217;ta de\u011fil \u2014 bunlar ge\u00e7icidir ve yeniden denenebilir. Ancak ayn\u0131 adres birka\u00e7 kampanya boyunca s\u00fcrekli soft bounce veriyorsa, onu hard gibi de\u011ferlendirip listeden \u00e7\u0131kar\u0131n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Bounce mesaj\u0131nda &#8220;IP kara listede&#8221; yaz\u0131yorsa ne yapmal\u0131y\u0131m?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Bu bir itibar reddidir. G\u00f6nderici IP&#8217;nizi kara listede sorgulay\u0131n, listelenme sebebini \u00e7\u00f6z\u00fcn ve ilgili listeden delist ba\u015fvurusu yap\u0131n. K\u00f6k sebep \u00e7\u00f6z\u00fclmeden g\u00f6nderime devam etmek durumu k\u00f6t\u00fcle\u015ftirir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u00d6zet:<\/strong> Bounce y\u00f6netimi, g\u00f6nderici itibar\u0131n\u0131 koruman\u0131n temel ta\u015flar\u0131ndan biridir. NDR&#8217;leri ayr\u0131\u015ft\u0131r\u0131n, hard bounce&#8217;lar\u0131 an\u0131nda bask\u0131lay\u0131n, tekrarlayan soft bounce&#8217;lar\u0131 \u00e7\u0131kar\u0131n ve liste hijyeni + sunset politikas\u0131yla bounce&#8217;\u0131 ba\u015ftan d\u00fc\u015f\u00fck tutun. Bunu <a href=\"\/blog\/e-posta-teslim-edilebilirlik-nedir-nasil-artirilir\/\">teslim edilebilirlik<\/a> ve kara liste izlemesiyle birle\u015ftirerek gelen kutusuna ula\u015fma oran\u0131n\u0131z\u0131 y\u00fcksek tutun.<\/p>\n\n\n\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[\n{\"@type\":\"Question\",\"name\":\"Kabul edilebilir bounce oran\u0131 nedir?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Genel hedef %2'nin alt\u0131d\u0131r; sa\u011fl\u0131kl\u0131 ve izinli listelerde bu oran \u00e7ok daha d\u00fc\u015f\u00fckt\u00fcr. Ani bir y\u00fckseli\u015f g\u00f6r\u00fcrseniz g\u00f6nderimi durdurup listeyi ve itibar\u0131n\u0131z\u0131 g\u00f6zden ge\u00e7irin.\"}},\n{\"@type\":\"Question\",\"name\":\"Soft bounce'lar\u0131 da \u00e7\u0131karmal\u0131 m\u0131y\u0131m?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"\u0130lk soft bounce'ta de\u011fil; bunlar ge\u00e7icidir ve yeniden denenebilir. Ancak ayn\u0131 adres birka\u00e7 kampanya boyunca s\u00fcrekli soft bounce veriyorsa hard gibi de\u011ferlendirip listeden \u00e7\u0131kar\u0131n.\"}},\n{\"@type\":\"Question\",\"name\":\"Bounce mesaj\u0131nda IP kara listede yaz\u0131yorsa ne yapmal\u0131y\u0131m?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Bu bir itibar reddidir. G\u00f6nderici IP'nizi kara listede sorgulay\u0131n, listelenme sebebini \u00e7\u00f6z\u00fcn ve ilgili listeden delist ba\u015fvurusu yap\u0131n. K\u00f6k sebep \u00e7\u00f6z\u00fclmeden g\u00f6nderime devam etmek durumu k\u00f6t\u00fcle\u015ftirir.\"}}\n]}\n<\/script>\n\n","protected":false},"excerpt":{"rendered":"<p>&#8220;Undelivered Mail Returned to Sender&#8221; \u2014 g\u00f6nderdi\u011finiz bir e-postan\u0131n geri d\u00f6nd\u00fc\u011f\u00fcn\u00fc g\u00f6steren bu bildirim, tek ba\u015f\u0131na zarars\u0131z g\u00f6r\u00fcn\u00fcr. Ama y\u00fcksek bounce (geri d\u00f6nme) oran\u0131, al\u0131c\u0131 sa\u011flay\u0131c\u0131lar\u0131n g\u00f6z\u00fcnde k\u00f6t\u00fc liste kalitesinin en net i\u015faretidir ve g\u00f6nderici itibar\u0131n\u0131z\u0131 h\u0131zla d\u00fc\u015f\u00fcrerek sizi spam klas\u00f6r\u00fcne, hatta kara listeye ta\u015f\u0131yabilir. Bu rehberde hard ve soft bounce fark\u0131n\u0131, SMTP bounce kodlar\u0131n\u0131 &#8230; <a title=\"Hard Bounce ve Soft Bounce Nedir? Bounce Y\u00f6netimi ve Liste Hijyeni Rehberi\" class=\"read-more\" href=\"https:\/\/rbl.watch\/blog\/hard-soft-bounce-nedir-bounce-yonetimi-liste-hijyeni\/\" aria-label=\"Read more about Hard Bounce ve Soft Bounce Nedir? Bounce Y\u00f6netimi ve Liste Hijyeni Rehberi\">Devam\u0131n\u0131 oku<\/a><\/p>\n","protected":false},"author":2,"featured_media":360,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-359","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ip-reputation"],"_links":{"self":[{"href":"https:\/\/rbl.watch\/blog\/wp-json\/wp\/v2\/posts\/359","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rbl.watch\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rbl.watch\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rbl.watch\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rbl.watch\/blog\/wp-json\/wp\/v2\/comments?post=359"}],"version-history":[{"count":0,"href":"https:\/\/rbl.watch\/blog\/wp-json\/wp\/v2\/posts\/359\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rbl.watch\/blog\/wp-json\/wp\/v2\/media\/360"}],"wp:attachment":[{"href":"https:\/\/rbl.watch\/blog\/wp-json\/wp\/v2\/media?parent=359"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rbl.watch\/blog\/wp-json\/wp\/v2\/categories?post=359"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rbl.watch\/blog\/wp-json\/wp\/v2\/tags?post=359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}