{"id":31,"date":"2026-09-28T12:12:51","date_gmt":"2026-09-28T09:12:51","guid":{"rendered":"https:\/\/mx1mail.com\/blog\/spf-nedir-nasil-calisir\/"},"modified":"2026-09-28T12:12:51","modified_gmt":"2026-09-28T09:12:51","slug":"spf-nedir-nasil-calisir","status":"publish","type":"post","link":"https:\/\/mx1mail.com\/blog\/tr\/spf-nedir-nasil-calisir\/","title":{"rendered":"SPF Nedir ve Nas\u0131l \u00c7al\u0131\u015f\u0131r?"},"content":{"rendered":"<p>SPF, yani Sender Policy Framework, bir alan ad\u0131 ad\u0131na hangi sunucular\u0131n e-posta g\u00f6ndermeye yetkili oldu\u011funu DNS \u00fczerinden tan\u0131mlayan e-posta kimlik do\u011frulama mekanizmas\u0131d\u0131r.<\/p>\n<h2>SPF neden kullan\u0131l\u0131r?<\/h2>\n<p>Bir sald\u0131rgan\u0131n \u015firket domainini g\u00f6nderen adresi olarak kullanmas\u0131 teknik olarak m\u00fcmk\u00fcnd\u00fcr. SPF, al\u0131c\u0131 sunucular\u0131n mesaj\u0131n yetkili bir kaynaktan gelip gelmedi\u011fini kontrol etmesine yard\u0131mc\u0131 olur.<\/p>\n<h2>SPF kayd\u0131 nerede bulunur?<\/h2>\n<p>SPF bilgisi domainin DNS b\u00f6lgesinde TXT kayd\u0131 olarak yay\u0131nlan\u0131r. Kay\u0131tta yetkili IP adresleri veya e-posta hizmetleri belirtilebilir.<\/p>\n<h2>Al\u0131c\u0131 sunucu ne yapar?<\/h2>\n<p>Mesaj geldi\u011finde al\u0131c\u0131 sistem g\u00f6nderen domainin SPF kayd\u0131n\u0131 sorgular ve ba\u011flant\u0131 kuran sunucunun yetkili listede olup olmad\u0131\u011f\u0131n\u0131 kontrol eder.<\/p>\n<h2>SPF tek ba\u015f\u0131na yeterli mi?<\/h2>\n<p>Hay\u0131r. SPF \u00f6nemli bir do\u011frulama katman\u0131d\u0131r ancak DKIM ve DMARC ile birlikte kullan\u0131ld\u0131\u011f\u0131nda daha kapsaml\u0131 bir e-posta kimlik do\u011frulama yap\u0131s\u0131 olu\u015fturur.<\/p>\n<h2>S\u0131k yap\u0131lan SPF hatalar\u0131<\/h2>\n<ul>\n<li>Ayn\u0131 domain i\u00e7in birden fazla SPF kayd\u0131 olu\u015fturmak<\/li>\n<li>Yetkili g\u00f6nderim servislerini kayda eklememek<\/li>\n<li>Gereksiz derecede geni\u015f yetkilendirme yapmak<\/li>\n<li>DNS sorgu limitlerini dikkate almamak<\/li>\n<\/ul>\n<p>\u00dc\u00e7 teknolojinin birlikte kullan\u0131m\u0131n\u0131 <a href=\"https:\/\/mx1mail.com\/blog\/tr\/spf-dkim-dmarc-nedir\/\">SPF, DKIM ve DMARC Nedir?<\/a> yaz\u0131m\u0131zda inceleyebilirsiniz.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SPF kayd\u0131n\u0131n ne oldu\u011funu, DNS \u00fczerinde nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 ve \u015firket alan ad\u0131ndan hangi sunucular\u0131n e-posta g\u00f6nderebilece\u011fini nas\u0131l belirledi\u011fini \u00f6\u011frenin.<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[94,99],"class_list":["post-31","post","type-post","status-publish","format-standard","hentry","category-teknik-rehberler","tag-dns","tag-spf"],"_links":{"self":[{"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/posts\/31","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/comments?post=31"}],"version-history":[{"count":0,"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/posts\/31\/revisions"}],"wp:attachment":[{"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/media?parent=31"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/categories?post=31"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mx1mail.com\/blog\/wp-json\/wp\/v2\/tags?post=31"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}