{"id":8837,"date":"2025-01-19T00:30:07","date_gmt":"2025-01-18T21:30:07","guid":{"rendered":"https:\/\/sunucucozumleri.com\/blog\/?p=8837"},"modified":"2025-01-19T00:30:07","modified_gmt":"2025-01-18T21:30:07","slug":"spf-nedir","status":"publish","type":"post","link":"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/","title":{"rendered":"SPF Nedir?"},"content":{"rendered":"<p data-pm-slice=\"1 1 []\">SPF (<strong>Sender Policy Framework<\/strong>), bir alan ad\u0131ndan g\u00f6nderilen e-postalar\u0131n yetkili bir kaynaktan geldi\u011fini do\u011frulamak i\u00e7in kullan\u0131lan bir e-posta kimlik do\u011frulama protokol\u00fcd\u00fcr. Sahte e-postalar\u0131n engellenmesi ve spam sald\u0131r\u0131lar\u0131n\u0131n azalt\u0131lmas\u0131 amac\u0131yla geli\u015ftirilmi\u015ftir. Bu makalede, SPF&#8217;nin ne oldu\u011funu, nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131, neden \u00f6nemli oldu\u011funu ve nas\u0131l yap\u0131land\u0131r\u0131laca\u011f\u0131n\u0131 teknik detaylar\u0131yla ele alaca\u011f\u0131z.<\/p>\n<div>\n<hr \/>\n<\/div>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 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\" style=\"cursor:inherit\">Makale \u0130\u00e7eri\u011fi<\/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=\"\u0130\u00e7indekiler Tablosunu A\u00e7\/Kapat\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><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><\/span><\/span><\/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:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#SPFnin_Tanimi_ve_Amaci\" >SPF&#8217;nin Tan\u0131m\u0131 ve Amac\u0131<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#SPFnin_Temel_Amaclari\" >SPF&#8217;nin Temel Ama\u00e7lar\u0131<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#SPF_Nasil_Calisir\" >SPF Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#1_Gonderici_Sunucusu\" >1. G\u00f6nderici Sunucusu<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#2_Alici_Sunucusu\" >2. Al\u0131c\u0131 Sunucusu<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#3_Dogrulama_Sonucu\" >3. Do\u011frulama Sonucu<\/a><\/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:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#SPFnin_Bilesenleri\" >SPF&#8217;nin Bile\u015fenleri<\/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:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#1_TXT_Kaydi\" >1. TXT Kayd\u0131<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#2_Anahtar_Parametreler\" >2. Anahtar Parametreler<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#3_Mekanizmalar\" >3. Mekanizmalar<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#4_Modifikatorlar\" >4. Modifikatorlar<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#SPFnin_Onemi\" >SPF&#8217;nin \u00d6nemi<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#1_Phishing_ve_Spam_Saldirilarini_Onleme\" >1. Phishing ve Spam Sald\u0131r\u0131lar\u0131n\u0131 \u00d6nleme<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#2_E-posta_Guvenilirligini_Artirma\" >2. E-posta G\u00fcvenilirli\u011fini Art\u0131rma<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#3_Yasal_Uygunluk_Saglama\" >3. Yasal Uygunluk Sa\u011flama<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#SPF_Nasil_Yapilandirilir\" >SPF Nas\u0131l Yap\u0131land\u0131r\u0131l\u0131r?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#1_DNS_TXT_Kaydi_Olusturma\" >1. DNS TXT Kayd\u0131 Olu\u015fturma<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#2_DNS_Yonetim_Paneline_Ekleme\" >2. DNS Y\u00f6netim Paneline Ekleme<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#3_Dogrulama\" >3. Do\u011frulama<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#SPFnin_Avantajlari_ve_Sinirlamalari\" >SPF&#8217;nin Avantajlar\u0131 ve S\u0131n\u0131rlamalar\u0131<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#Avantajlari\" >Avantajlar\u0131<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#Sinirlamalari\" >S\u0131n\u0131rlamalar\u0131<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#SPFnin_DMARC_ve_DKIM_ile_Entegrasyonu\" >SPF&#8217;nin DMARC ve DKIM ile Entegrasyonu<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#1_DKIM_DomainKeys_Identified_Mail\" >1. DKIM (DomainKeys Identified Mail)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#2_DMARC_Domain-based_Message_Authentication_Reporting_and_Conformance\" >2. DMARC (Domain-based Message Authentication, Reporting, and Conformance)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#SPF_Kaydi_Icin_En_Iyi_Uygulamalar\" >SPF Kayd\u0131 \u0130\u00e7in En \u0130yi Uygulamalar<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/sunucucozumleri.com\/blog\/spf-nedir\/#Sonuc\" >Sonu\u00e7<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"SPFnin_Tanimi_ve_Amaci\"><\/span>SPF&#8217;nin Tan\u0131m\u0131 ve Amac\u0131<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>SPF, e-posta g\u00f6nderen sunucular\u0131n kimli\u011fini do\u011frulamak i\u00e7in kullan\u0131lan bir DNS (<a href=\"https:\/\/sunucucozumleri.com\/blog\/domain-nedir\/\">Domain<\/a> Name System) kayd\u0131d\u0131r. SPF, e-posta sahtecili\u011fini \u00f6nlemeyi ve al\u0131c\u0131 sunucular\u0131n bir e-postan\u0131n g\u00fcvenilir olup olmad\u0131\u011f\u0131n\u0131 belirlemesini kolayla\u015ft\u0131rmay\u0131 hedefler.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"SPFnin_Temel_Amaclari\"><\/span>SPF&#8217;nin Temel Ama\u00e7lar\u0131<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol start=\"1\" data-spread=\"false\">\n<li><strong>Kimlik Do\u011frulama:<\/strong> Alan ad\u0131ndan e-posta g\u00f6ndermeye yetkili sunucular\u0131 belirler.<\/li>\n<li><strong>Sahtecilik \u00d6nleme:<\/strong> Spam ve phishing sald\u0131r\u0131lar\u0131n\u0131 azalt\u0131r.<\/li>\n<li><strong>E-posta G\u00fcvenilirli\u011fini Art\u0131rma:<\/strong> E-posta sa\u011flay\u0131c\u0131lar\u0131n\u0131n, e-postalar\u0131n do\u011frulu\u011funu kolayca do\u011frulamas\u0131n\u0131 sa\u011flar.<\/li>\n<li><strong>Teslimat Oranlar\u0131n\u0131 Art\u0131rma:<\/strong> G\u00fcvenilir bir SPF kayd\u0131, e-postalar\u0131n spam klas\u00f6r\u00fcne d\u00fc\u015fme olas\u0131l\u0131\u011f\u0131n\u0131 azalt\u0131r.<\/li>\n<\/ol>\n<div>\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"SPF_Nasil_Calisir\"><\/span>SPF Nas\u0131l \u00c7al\u0131\u015f\u0131r?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>SPF, DNS&#8217;de tan\u0131mlanan bir TXT kayd\u0131 \u00fczerinden \u00e7al\u0131\u015f\u0131r. Bu kay\u0131t, bir alan ad\u0131ndan e-posta g\u00f6ndermeye yetkili IP adreslerini listeler. SPF do\u011frulama s\u00fcreci \u015fu ad\u0131mlardan olu\u015fur:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_Gonderici_Sunucusu\"><\/span>1. G\u00f6nderici Sunucusu<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul data-spread=\"false\">\n<li>Bir e-posta g\u00f6nderildi\u011finde, g\u00f6nderici <a href=\"https:\/\/sunucucozumleri.com\/blog\/frontpage\/\">sunucu<\/a> al\u0131c\u0131 sunucusuyla ba\u011flant\u0131 kurar.<\/li>\n<li>Al\u0131c\u0131 sunucu, g\u00f6nderici alan ad\u0131na ait SPF kayd\u0131n\u0131 sorgular.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"2_Alici_Sunucusu\"><\/span>2. Al\u0131c\u0131 Sunucusu<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul data-spread=\"false\">\n<li>Al\u0131c\u0131 sunucu, DNS \u00fczerinden SPF kayd\u0131n\u0131 al\u0131r.<\/li>\n<li>G\u00f6nderici IP adresinin bu kay\u0131tla uyumlu olup olmad\u0131\u011f\u0131n\u0131 kontrol eder.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"3_Dogrulama_Sonucu\"><\/span>3. Do\u011frulama Sonucu<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SPF do\u011frulama i\u015flemi \u00fc\u00e7 sonu\u00e7tan biriyle sonu\u00e7lan\u0131r:<\/p>\n<ol start=\"1\" data-spread=\"false\">\n<li><strong>Pass (Ba\u015far\u0131l\u0131):<\/strong> G\u00f6nderici IP adresi SPF kayd\u0131yla e\u015fle\u015fir.<\/li>\n<li><strong>Fail (Ba\u015far\u0131s\u0131z):<\/strong> G\u00f6nderici IP adresi SPF kayd\u0131nda belirtilmemi\u015ftir.<\/li>\n<li><strong>Neutral (Tarafs\u0131z):<\/strong> SPF kayd\u0131nda, bu IP adresine izin verilip verilmedi\u011fi belirtilmemi\u015ftir.<\/li>\n<\/ol>\n<p>E\u011fer do\u011frulama ba\u015far\u0131s\u0131z olursa, al\u0131c\u0131 sunucu e-postay\u0131 reddedebilir veya spam klas\u00f6r\u00fcne ta\u015f\u0131r.<\/p>\n<div>\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"SPFnin_Bilesenleri\"><\/span>SPF&#8217;nin Bile\u015fenleri<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>SPF kayd\u0131n\u0131n temel bile\u015fenleri \u015funlard\u0131r:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_TXT_Kaydi\"><\/span>1. TXT Kayd\u0131<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SPF, DNS&#8217;de bir TXT kayd\u0131 olarak tan\u0131mlan\u0131r. Bu kay\u0131t, alan ad\u0131ndan g\u00f6nderilmeye yetkili IP adreslerini belirtir. \u00d6rnek bir SPF kayd\u0131:<\/p>\n<pre><code>v=spf1 ip4:192.168.1.0\/24 include:_spf.google.com -all<\/code><\/pre>\n<h3><span class=\"ez-toc-section\" id=\"2_Anahtar_Parametreler\"><\/span>2. Anahtar Parametreler<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul data-spread=\"false\">\n<li><strong>v=spf1:<\/strong> SPF kayd\u0131n\u0131n s\u00fcr\u00fcm\u00fcn\u00fc belirtir.<\/li>\n<li><strong>ip4\/ip6:<\/strong> Yetkili IPv4 veya IPv6 adres aral\u0131\u011f\u0131n\u0131 belirtir.<\/li>\n<li><strong>include:<\/strong> Ba\u015fka bir alan ad\u0131na ait SPF kayd\u0131n\u0131 dahil eder.<\/li>\n<li><strong>all:<\/strong> T\u00fcm di\u011fer durumlar i\u00e7in ge\u00e7erli olan kural\u0131 belirtir.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"3_Mekanizmalar\"><\/span>3. Mekanizmalar<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SPF kayd\u0131nda \u00e7e\u015fitli mekanizmalar kullan\u0131l\u0131r:<\/p>\n<ul data-spread=\"false\">\n<li><strong>all:<\/strong> T\u00fcm adresler i\u00e7in ge\u00e7erli bir kural uygular.<\/li>\n<li><strong>ip4\/ip6:<\/strong> Belirli IP adreslerini veya aral\u0131klar\u0131n\u0131 tan\u0131mlar.<\/li>\n<li><strong>include:<\/strong> Ba\u015fka bir SPF kayd\u0131n\u0131 i\u00e7e aktar\u0131r.<\/li>\n<li><strong>a:<\/strong> Alan ad\u0131n\u0131n A kayd\u0131na (IPv4 adresi) kar\u015f\u0131l\u0131k gelen IP adreslerini kontrol eder.<\/li>\n<li><strong>mx:<\/strong> Alan ad\u0131n\u0131n MX (Mail Exchange) kay\u0131tlar\u0131n\u0131 kontrol eder.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"4_Modifikatorlar\"><\/span>4. Modifikatorlar<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Modifikatorlar, SPF kayd\u0131n\u0131n davran\u0131\u015f\u0131n\u0131 \u00f6zelle\u015ftirir. En yayg\u0131n kullan\u0131lan modifikator, &#8220;redirect&#8221; parametresidir. \u00d6rnek:<\/p>\n<pre><code>v=spf1 redirect=example.com<\/code><\/pre>\n<div>\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"SPFnin_Onemi\"><\/span>SPF&#8217;nin \u00d6nemi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>SPF, modern e-posta g\u00fcvenli\u011finin kritik bir par\u00e7as\u0131d\u0131r. \u0130\u015fte SPF&#8217;nin \u00f6nemi:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_Phishing_ve_Spam_Saldirilarini_Onleme\"><\/span>1. Phishing ve Spam Sald\u0131r\u0131lar\u0131n\u0131 \u00d6nleme<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SPF, sahte e-posta g\u00f6nderimlerini tespit eder ve engeller. \u00d6zellikle finansal kurulu\u015flar ve e-ticaret platformlar\u0131 gibi alanlarda phishing sald\u0131r\u0131lar\u0131n\u0131 \u00f6nlemede etkili bir ara\u00e7t\u0131r.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_E-posta_Guvenilirligini_Artirma\"><\/span>2. E-posta G\u00fcvenilirli\u011fini Art\u0131rma<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SPF, e-postalar\u0131n g\u00fcvenilir bir kaynaktan geldi\u011fini do\u011frulad\u0131\u011f\u0131 i\u00e7in spam filtrelerini ge\u00e7me olas\u0131l\u0131\u011f\u0131n\u0131 art\u0131r\u0131r. Bu, e-postalar\u0131n hedef al\u0131c\u0131ya ula\u015fma oran\u0131n\u0131 art\u0131r\u0131r.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Yasal_Uygunluk_Saglama\"><\/span>3. Yasal Uygunluk Sa\u011flama<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SPF, GDPR ve HIPAA gibi yasal d\u00fczenlemelere uygunluk sa\u011flamak i\u00e7in gerekli g\u00fcvenlik \u00f6nlemlerinden biridir.<\/p>\n<div>\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"SPF_Nasil_Yapilandirilir\"><\/span>SPF Nas\u0131l Yap\u0131land\u0131r\u0131l\u0131r?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>SPF kayd\u0131n\u0131n yap\u0131land\u0131r\u0131lmas\u0131 a\u015fa\u011f\u0131daki ad\u0131mlar\u0131 i\u00e7erir:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_DNS_TXT_Kaydi_Olusturma\"><\/span>1. DNS TXT Kayd\u0131 Olu\u015fturma<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SPF kayd\u0131, alan ad\u0131n\u0131n DNS ayarlar\u0131na eklenen bir TXT kayd\u0131d\u0131r. \u00d6rnek bir kay\u0131t:<\/p>\n<pre><code>v=spf1 ip4:203.0.113.0\/24 include:_spf.google.com -all<\/code><\/pre>\n<h3><span class=\"ez-toc-section\" id=\"2_DNS_Yonetim_Paneline_Ekleme\"><\/span>2. DNS Y\u00f6netim Paneline Ekleme<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol start=\"1\" data-spread=\"false\">\n<li>Alan ad\u0131n\u0131z\u0131n DNS y\u00f6netim paneline giri\u015f yap\u0131n.<\/li>\n<li>Yeni bir TXT kayd\u0131 ekleyin.<\/li>\n<li>Kayd\u0131n i\u00e7eri\u011fini \u015fu \u015fekilde girin:<\/li>\n<\/ol>\n<pre><code>Host: @\r\nType: TXT\r\nValue: v=spf1 ip4:203.0.113.0\/24 include:_spf.google.com -all\r\nTTL: 3600<\/code><\/pre>\n<ol start=\"4\" data-spread=\"false\">\n<li>Kayd\u0131 kaydedin ve DNS ayarlar\u0131n\u0131n g\u00fcncellenmesini bekleyin.<\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"3_Dogrulama\"><\/span>3. Do\u011frulama<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SPF kayd\u0131n\u0131z\u0131 do\u011frulamak i\u00e7in \u00e7evrimi\u00e7i ara\u00e7lar\u0131 kullanabilirsiniz. \u00d6rne\u011fin:<\/p>\n<ul data-spread=\"false\">\n<li><a>MXToolbox SPF Check<\/a><\/li>\n<li><a>Kitterman SPF Record Checker<\/a><\/li>\n<\/ul>\n<div>\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"SPFnin_Avantajlari_ve_Sinirlamalari\"><\/span>SPF&#8217;nin Avantajlar\u0131 ve S\u0131n\u0131rlamalar\u0131<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Avantajlari\"><\/span>Avantajlar\u0131<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol start=\"1\" data-spread=\"false\">\n<li><strong>Kolay Uygulama:<\/strong> SPF, DNS TXT kayd\u0131 olarak kolayca yap\u0131land\u0131r\u0131labilir.<\/li>\n<li><strong>Spam Engelleme:<\/strong> Sahte ve spam e-postalar\u0131n \u00f6nlenmesinde etkilidir.<\/li>\n<li><strong>Uyumluluk:<\/strong> <a href=\"https:\/\/sunucucozumleri.com\/blog\/dmarc-nedir-alan-adina-dmarc-kaydi-ekleme\/\">DMARC<\/a> ve <a href=\"https:\/\/sunucucozumleri.com\/blog\/dkim-nedir\/\">DKIM<\/a> ile birlikte \u00e7al\u0131\u015farak g\u00fc\u00e7l\u00fc bir e-posta g\u00fcvenli\u011fi sa\u011flar.<\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"Sinirlamalari\"><\/span>S\u0131n\u0131rlamalar\u0131<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ol start=\"1\" data-spread=\"false\">\n<li><strong>Forwarded E-postalar:<\/strong> SPF, iletilen (forwarded) e-postalar\u0131 yanl\u0131\u015f \u015fekilde reddedebilir.<\/li>\n<li><strong>Dinamik IP Adresleri:<\/strong> Dinamik IP adreslerinden g\u00f6nderilen e-postalar SPF do\u011frulamas\u0131nda ba\u015far\u0131s\u0131z olabilir.<\/li>\n<li><strong>Tek Ba\u015f\u0131na Yetersiz:<\/strong> SPF, yaln\u0131zca e-posta kimlik do\u011frulama mekanizmalar\u0131n\u0131n bir par\u00e7as\u0131d\u0131r ve tek ba\u015f\u0131na kapsaml\u0131 bir g\u00fcvenlik sa\u011flamaz.<\/li>\n<\/ol>\n<div>\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"SPFnin_DMARC_ve_DKIM_ile_Entegrasyonu\"><\/span>SPF&#8217;nin DMARC ve DKIM ile Entegrasyonu<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>SPF, DMARC ve DKIM ile birlikte \u00e7al\u0131\u015farak daha kapsaml\u0131 bir g\u00fcvenlik sa\u011flar:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_DKIM_DomainKeys_Identified_Mail\"><\/span>1. DKIM (DomainKeys Identified Mail)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>DKIM, e-postalar\u0131n g\u00f6nderici alan ad\u0131yla uyumlu oldu\u011funu do\u011frular ve mesaj\u0131n de\u011fi\u015ftirilmedi\u011fini garanti eder.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_DMARC_Domain-based_Message_Authentication_Reporting_and_Conformance\"><\/span>2. DMARC (Domain-based Message Authentication, Reporting, and Conformance)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>DMARC, SPF ve DKIM do\u011frulama sonu\u00e7lar\u0131n\u0131 birle\u015ftirerek sahte e-postalar i\u00e7in uygulanacak politikalar\u0131 belirler. \u00d6rne\u011fin, DMARC bir SPF ba\u015far\u0131s\u0131zl\u0131\u011f\u0131 durumunda e-postan\u0131n reddedilmesini veya karantinaya al\u0131nmas\u0131n\u0131 sa\u011flayabilir.<\/p>\n<div>\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"SPF_Kaydi_Icin_En_Iyi_Uygulamalar\"><\/span>SPF Kayd\u0131 \u0130\u00e7in En \u0130yi Uygulamalar<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ol start=\"1\" data-spread=\"false\">\n<li><strong>T\u00fcm Yetkili Sunucular\u0131 Dahil Edin:<\/strong> Alan ad\u0131n\u0131zdan e-posta g\u00f6nderen t\u00fcm IP adreslerini SPF kayd\u0131na ekleyin.<\/li>\n<li><strong>SPF Kayd\u0131n\u0131 D\u00fczenli G\u00fcncelleyin:<\/strong> Yeni e-posta hizmet sa\u011flay\u0131c\u0131lar\u0131n\u0131 veya sunucular\u0131 ekledi\u011finizde SPF kayd\u0131n\u0131z\u0131 g\u00fcncelleyin.<\/li>\n<li><strong>-all Kural\u0131n\u0131 Kullan\u0131n:<\/strong> T\u00fcm yetkisiz e-postalar\u0131n reddedilmesini sa\u011flamak i\u00e7in SPF kayd\u0131n\u0131z\u0131 <code>-all<\/code> ile bitirin.<\/li>\n<li><strong>Raporlama Ara\u00e7lar\u0131n\u0131 Kullan\u0131n:<\/strong> DMARC raporlama ara\u00e7lar\u0131yla SPF do\u011frulama sonu\u00e7lar\u0131n\u0131 izleyin.<\/li>\n<\/ol>\n<div>\n<hr \/>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Sonuc\"><\/span>Sonu\u00e7<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>SPF, e-posta sahtecili\u011fini ve spam sald\u0131r\u0131lar\u0131n\u0131 \u00f6nlemede kritik bir rol oynayan basit ama etkili bir protokold\u00fcr. DNS \u00fczerinden kolayca yap\u0131land\u0131r\u0131labilir ve di\u011fer kimlik do\u011frulama mekanizmalar\u0131yla entegre \u00e7al\u0131\u015farak kapsaml\u0131 bir g\u00fcvenlik sa\u011flar. SPF, do\u011fru bir \u015fekilde uyguland\u0131\u011f\u0131nda, hem bireysel kullan\u0131c\u0131lar hem de i\u015fletmeler i\u00e7in g\u00fcvenli ve verimli bir e-posta ileti\u015fim a\u011f\u0131 olu\u015fturur.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SPF (Sender Policy Framework), bir alan ad\u0131ndan g\u00f6nderilen e-postalar\u0131n yetkili bir kaynaktan geldi\u011fini do\u011frulamak i\u00e7in kullan\u0131lan bir e-posta kimlik do\u011frulama protokol\u00fcd\u00fcr. Sahte e-postalar\u0131n engellenmesi ve spam sald\u0131r\u0131lar\u0131n\u0131n azalt\u0131lmas\u0131 amac\u0131yla geli\u015ftirilmi\u015ftir. Bu makalede, SPF&#8217;nin ne oldu\u011funu, nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131, neden \u00f6nemli oldu\u011funu ve nas\u0131l yap\u0131land\u0131r\u0131laca\u011f\u0131n\u0131 teknik detaylar\u0131yla ele alaca\u011f\u0131z. SPF&#8217;nin Tan\u0131m\u0131 ve Amac\u0131 SPF, e-posta g\u00f6nderen sunucular\u0131n &hellip;<\/p>\n","protected":false},"author":1,"featured_media":8838,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[232],"tags":[],"class_list":["post-8837","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/posts\/8837","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/comments?post=8837"}],"version-history":[{"count":0,"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/posts\/8837\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/media\/8838"}],"wp:attachment":[{"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/media?parent=8837"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/categories?post=8837"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/tags?post=8837"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}