{"id":4434,"date":"2026-02-04T15:38:01","date_gmt":"2026-02-04T12:38:01","guid":{"rendered":"https:\/\/www.dchost.com\/blog\/temel-spf-dkim-ve-dmarc-ayarlari-kucuk-isletmeler-icin-adim-adim-e-posta-dogrulama\/"},"modified":"2026-02-04T15:38:01","modified_gmt":"2026-02-04T12:38:01","slug":"temel-spf-dkim-ve-dmarc-ayarlari-kucuk-isletmeler-icin-adim-adim-e-posta-dogrulama","status":"publish","type":"post","link":"https:\/\/www.dchost.com\/blog\/temel-spf-dkim-ve-dmarc-ayarlari-kucuk-isletmeler-icin-adim-adim-e-posta-dogrulama\/","title":{"rendered":"Temel SPF, DKIM ve DMARC Ayarlar\u0131: K\u00fc\u00e7\u00fck \u0130\u015fletmeler \u0130\u00e7in Ad\u0131m Ad\u0131m E\u2011Posta Do\u011frulama"},"content":{"rendered":"<div class=\"dchost-blog-content-wrapper\"><div id=\"toc_container\" class=\"toc_transparent no_bullets\"><p class=\"toc_title\">\u0130&ccedil;indekiler<\/p><ul class=\"toc_list\"><li><a href=\"#Kucuk_Isletmeler_Icin_SPF_DKIM_ve_DMARC_Neden_Bu_Kadar_Onemli\"><span class=\"toc_number toc_depth_1\">1<\/span> K\u00fc\u00e7\u00fck \u0130\u015fletmeler \u0130\u00e7in SPF, DKIM ve DMARC Neden Bu Kadar \u00d6nemli?<\/a><\/li><li><a href=\"#Temel_Kavramlar_SPF_DKIM_DMARC_ve_DNS_Iliskisi\"><span class=\"toc_number toc_depth_1\">2<\/span> Temel Kavramlar: SPF, DKIM, DMARC ve DNS \u0130li\u015fkisi<\/a><ul><li><a href=\"#DNS_nedir_neden_isin_tam_ortasinda\"><span class=\"toc_number toc_depth_2\">2.1<\/span> DNS nedir, neden i\u015fin tam ortas\u0131nda?<\/a><\/li><li><a href=\"#SPF_Sender_Policy_Framework_nedir\"><span class=\"toc_number toc_depth_2\">2.2<\/span> SPF (Sender Policy Framework) nedir?<\/a><\/li><li><a href=\"#DKIM_DomainKeys_Identified_Mail_nedir\"><span class=\"toc_number toc_depth_2\">2.3<\/span> DKIM (DomainKeys Identified Mail) nedir?<\/a><\/li><li><a href=\"#DMARC_Domainbased_Message_Authentication_Reporting_and_Conformance_nedir\"><span class=\"toc_number toc_depth_2\">2.4<\/span> DMARC (Domain\u2011based Message Authentication, Reporting and Conformance) nedir?<\/a><\/li><\/ul><\/li><li><a href=\"#Adim_1_Mevcut_EPosta_Altyapinizi_Envanter_Cikarma\"><span class=\"toc_number toc_depth_1\">3<\/span> Ad\u0131m 1 \u2013 Mevcut E\u2011Posta Altyap\u0131n\u0131z\u0131 Envanter \u00c7\u0131karma<\/a><ul><li><a href=\"#Hangi_sistemler_eposta_gonderiyor\"><span class=\"toc_number toc_depth_2\">3.1<\/span> Hangi sistemler e\u2011posta g\u00f6nderiyor?<\/a><\/li><\/ul><\/li><li><a href=\"#Adim_2_SPF_Kaydini_Dogru_Kurmak\"><span class=\"toc_number toc_depth_1\">4<\/span> Ad\u0131m 2 \u2013 SPF Kayd\u0131n\u0131 Do\u011fru Kurmak<\/a><ul><li><a href=\"#SPF_kaydinin_temel_yapisi\"><span class=\"toc_number toc_depth_2\">4.1<\/span> SPF kayd\u0131n\u0131n temel yap\u0131s\u0131<\/a><\/li><li><a href=\"#Basit_bir_senaryo_Sadece_hosting_epostasi_kullaniyorsunuz\"><span class=\"toc_number toc_depth_2\">4.2<\/span> Basit bir senaryo: Sadece hosting e\u2011postas\u0131 kullan\u0131yorsunuz<\/a><\/li><li><a href=\"#Toplu_mailbulten_servisi_de_kullaniyorsaniz\"><span class=\"toc_number toc_depth_2\">4.3<\/span> Toplu mail\/b\u00fclten servisi de kullan\u0131yorsan\u0131z<\/a><\/li><li><a href=\"#all_mi_-all_mi\"><span class=\"toc_number toc_depth_2\">4.4<\/span> \u201c~all\u201d m\u0131 \u201c-all\u201d m\u0131?<\/a><\/li><\/ul><\/li><li><a href=\"#Adim_3_DKIM_Imzasini_Etkinlestirmek\"><span class=\"toc_number toc_depth_1\">5<\/span> Ad\u0131m 3 \u2013 DKIM \u0130mzas\u0131n\u0131 Etkinle\u015ftirmek<\/a><ul><li><a href=\"#DKIM_nasil_calisir\"><span class=\"toc_number toc_depth_2\">5.1<\/span> DKIM nas\u0131l \u00e7al\u0131\u015f\u0131r?<\/a><\/li><li><a href=\"#DCHost_paylasimli_hosting_veya_kurumsal_eposta_kullaniyorsaniz\"><span class=\"toc_number toc_depth_2\">5.2<\/span> DCHost payla\u015f\u0131ml\u0131 hosting veya kurumsal e\u2011posta kullan\u0131yorsan\u0131z<\/a><\/li><li><a href=\"#VPS_veya_dedicated_sunucuda_kendi_mail_sunucunuzu_yonetiyorsaniz\"><span class=\"toc_number toc_depth_2\">5.3<\/span> VPS veya dedicated sunucuda kendi mail sunucunuzu y\u00f6netiyorsan\u0131z<\/a><\/li><\/ul><\/li><li><a href=\"#Adim_4_DMARC_ile_Politika_Belirlemek\"><span class=\"toc_number toc_depth_1\">6<\/span> Ad\u0131m 4 \u2013 DMARC ile Politika Belirlemek<\/a><ul><li><a href=\"#Basit_bir_DMARC_kaydi_ornegi\"><span class=\"toc_number toc_depth_2\">6.1<\/span> Basit bir DMARC kayd\u0131 \u00f6rne\u011fi<\/a><\/li><li><a href=\"#Politikayi_sikilastirmak_quarantine_ve_reject\"><span class=\"toc_number toc_depth_2\">6.2<\/span> Politikay\u0131 s\u0131k\u0131la\u015ft\u0131rmak: quarantine ve reject<\/a><\/li><\/ul><\/li><li><a href=\"#Adim_5_Test_Izleme_ve_Yaygin_Hatalari_Duzeltme\"><span class=\"toc_number toc_depth_1\">7<\/span> Ad\u0131m 5 \u2013 Test, \u0130zleme ve Yayg\u0131n Hatalar\u0131 D\u00fczeltme<\/a><ul><li><a href=\"#Adim_adim_test_stratejisi\"><span class=\"toc_number toc_depth_2\">7.1<\/span> Ad\u0131m ad\u0131m test stratejisi<\/a><\/li><li><a href=\"#En_sik_gordugumuz_SPFDKIMDMARC_hatalari\"><span class=\"toc_number toc_depth_2\">7.2<\/span> En s\u0131k g\u00f6rd\u00fc\u011f\u00fcm\u00fcz SPF\/DKIM\/DMARC hatalar\u0131<\/a><\/li><\/ul><\/li><li><a href=\"#Kucuk_Isletmeler_Icin_Pratik_Senaryolar\"><span class=\"toc_number toc_depth_1\">8<\/span> K\u00fc\u00e7\u00fck \u0130\u015fletmeler \u0130\u00e7in Pratik Senaryolar<\/a><ul><li><a href=\"#Senaryo_1_Sadece_hosting_uzerindeki_kurumsal_eposta\"><span class=\"toc_number toc_depth_2\">8.1<\/span> Senaryo 1: Sadece hosting \u00fczerindeki kurumsal e\u2011posta<\/a><\/li><li><a href=\"#Senaryo_2_Web_sitesi_transactional_mailler_ayni_hostingte_pazarlama_mailleri_harici_serviste\"><span class=\"toc_number toc_depth_2\">8.2<\/span> Senaryo 2: Web sitesi + transactional mailler ayn\u0131 hosting\u2019te, pazarlama mailleri harici serviste<\/a><\/li><li><a href=\"#Senaryo_3_Kendi_VPSinizde_mail_sunucusu_calistiriyorsunuz\"><span class=\"toc_number toc_depth_2\">8.3<\/span> Senaryo 3: Kendi VPS\u2019inizde mail sunucusu \u00e7al\u0131\u015ft\u0131r\u0131yorsunuz<\/a><\/li><\/ul><\/li><li><a href=\"#Altyapi_Tarafini_DCHost_ile_Nasil_Basitlestiriyoruz\"><span class=\"toc_number toc_depth_1\">9<\/span> Altyap\u0131 Taraf\u0131n\u0131 DCHost ile Nas\u0131l Basitle\u015ftiriyoruz?<\/a><\/li><li><a href=\"#Ozet_ve_Uygulanabilir_Yol_Haritasi\"><span class=\"toc_number toc_depth_1\">10<\/span> \u00d6zet ve Uygulanabilir Yol Haritas\u0131<\/a><\/li><\/ul><\/div>\n<h2><span id=\"Kucuk_Isletmeler_Icin_SPF_DKIM_ve_DMARC_Neden_Bu_Kadar_Onemli\">K\u00fc\u00e7\u00fck \u0130\u015fletmeler \u0130\u00e7in SPF, DKIM ve DMARC Neden Bu Kadar \u00d6nemli?<\/span><\/h2>\n<p>K\u00fc\u00e7\u00fck bir i\u015fletme i\u00e7in e\u2011posta, \u00e7o\u011fu zaman en kritik ileti\u015fim kanal\u0131d\u0131r. Tek bir yanl\u0131\u015f yap\u0131land\u0131r\u0131lm\u0131\u015f DNS kayd\u0131 y\u00fcz\u00fcnden; teklif mailleriniz m\u00fc\u015fterinin spam klas\u00f6r\u00fcne gidebilir, e\u2011faturalar\u0131n\u0131z hi\u00e7 ula\u015fmayabilir ya da daha k\u00f6t\u00fcs\u00fc, biri sizin alan ad\u0131n\u0131z\u0131 taklit ederek m\u00fc\u015fterilerinize sahte \u00f6deme linkleri g\u00f6nderebilir. SPF, DKIM ve DMARC tam burada devreye girer: Alan ad\u0131n\u0131z ad\u0131na <strong>kimlerin e\u2011posta g\u00f6ndermeye yetkili oldu\u011funu<\/strong> tan\u0131mlaman\u0131z\u0131 ve al\u0131c\u0131 sunuculara bunu <strong>kriptografik olarak ispatlaman\u0131z\u0131<\/strong> sa\u011flar.<\/p>\n<p>DCHost taraf\u0131nda y\u00fczlerce k\u00fc\u00e7\u00fck i\u015fletmenin e\u2011posta altyap\u0131s\u0131n\u0131 y\u00f6netirken en \u00e7ok g\u00f6rd\u00fc\u011f\u00fcm\u00fcz sorun, bu kay\u0131tlar\u0131n ya hi\u00e7 kurulmam\u0131\u015f olmas\u0131 ya da y\u0131llar \u00f6nce yanl\u0131\u015f kurulup unutulmu\u015f olmas\u0131. Sonu\u00e7: Yava\u015f yava\u015f bozulan e\u2011posta itibar\u0131, artan spam \u015fikayetleri ve gizemli \u015fekilde kaybolan mailler. Bu rehberde, teknik olmayan ekiplerin bile ad\u0131m ad\u0131m uygulayabilece\u011fi \u015fekilde <strong>temel SPF, DKIM ve DMARC ayarlar\u0131n\u0131<\/strong> nas\u0131l kuraca\u011f\u0131n\u0131z\u0131 anlataca\u011f\u0131z. Hedefimiz: Daha g\u00fcvenli, daha teslim edilebilir ve marka itibar\u0131 g\u00fc\u00e7l\u00fc bir e\u2011posta altyap\u0131s\u0131.<\/p>\n<h2><span id=\"Temel_Kavramlar_SPF_DKIM_DMARC_ve_DNS_Iliskisi\">Temel Kavramlar: SPF, DKIM, DMARC ve DNS \u0130li\u015fkisi<\/span><\/h2>\n<p>\u00d6nce k\u0131sa bir s\u00f6zl\u00fck olu\u015ftural\u0131m. Kafa kar\u0131\u015f\u0131kl\u0131\u011f\u0131n\u0131 azaltmak i\u00e7in olabildi\u011fince sade anlataca\u011f\u0131m.<\/p>\n<h3><span id=\"DNS_nedir_neden_isin_tam_ortasinda\">DNS nedir, neden i\u015fin tam ortas\u0131nda?<\/span><\/h3>\n<p>Alan ad\u0131n\u0131z\u0131n (\u00f6rne\u011fin <strong>firmaadi.com<\/strong>) internetteki t\u00fcm teknik ayarlar\u0131 DNS \u00fczerinden y\u00f6netilir: Web sitenizin IP adresi, e\u2011posta sunucunuz, SSL ile ilgili baz\u0131 kontroller ve tabii ki SPF, DKIM, DMARC kay\u0131tlar\u0131. Bu kavramlara yabanc\u0131ysan\u0131z, \u00f6nce <a href='https:\/\/www.dchost.com\/blog\/dns-kayitlari-nedir-a-aaaa-cname-mx-txt-ve-srv-rehberi\/'>DNS kay\u0131tlar\u0131 (A, MX, TXT vb.) hakk\u0131nda haz\u0131rlad\u0131\u011f\u0131m\u0131z detayl\u0131 rehbere<\/a> g\u00f6z atman\u0131z faydal\u0131 olabilir.<\/p>\n<h3><span id=\"SPF_Sender_Policy_Framework_nedir\">SPF (Sender Policy Framework) nedir?<\/span><\/h3>\n<p>SPF, k\u0131saca \u015funu s\u00f6yler: \u201cBu alan ad\u0131 ad\u0131na <strong>\u015fu IP adresleri ve sunucular<\/strong> e\u2011posta g\u00f6nderebilir, di\u011ferleri g\u00f6nderemez.\u201d Bunu DNS \u00fczerine ekledi\u011finiz bir <strong>TXT kayd\u0131<\/strong> ile belirtirsiniz. Al\u0131c\u0131 sunucu, mesaj\u0131 ald\u0131\u011f\u0131nda bu kayda bakar: G\u00f6nderen IP bu listede mi? De\u011filse SPF ba\u015far\u0131s\u0131z olur.<\/p>\n<h3><span id=\"DKIM_DomainKeys_Identified_Mail_nedir\">DKIM (DomainKeys Identified Mail) nedir?<\/span><\/h3>\n<p>DKIM, g\u00f6nderdi\u011finiz her e\u2011postan\u0131n i\u00e7ine, alan ad\u0131n\u0131za ait bir <strong>kriptografik imza<\/strong> ekler. \u0130mzan\u0131n do\u011frulamas\u0131 i\u00e7in gerekli olan \u201ca\u00e7\u0131k anahtar\u201d yine DNS \u00fczerinde bir TXT kayd\u0131 olarak yay\u0131nlan\u0131r. Al\u0131c\u0131 sunucu, e\u2011postadaki DKIM imzas\u0131n\u0131 al\u0131r, DNS\u2019ten a\u00e7\u0131k anahtar\u0131 \u00e7eker ve mailin yolda de\u011fi\u015ftirilip de\u011fi\u015ftirilmedi\u011fini, ger\u00e7ekten yetkili bir sunucudan \u00e7\u0131k\u0131p \u00e7\u0131kmad\u0131\u011f\u0131n\u0131 kontrol eder.<\/p>\n<h3><span id=\"DMARC_Domainbased_Message_Authentication_Reporting_and_Conformance_nedir\">DMARC (Domain\u2011based Message Authentication, Reporting and Conformance) nedir?<\/span><\/h3>\n<p>DMARC, SPF ve DKIM sonu\u00e7lar\u0131n\u0131 birle\u015ftirip \u015fu \u00fc\u00e7 soruya cevap verir:<\/p>\n<ul>\n<li>Bu mesaj SPF ve\/veya DKIM testlerinden ge\u00e7ti mi?<\/li>\n<li>G\u00f6nderen alan ad\u0131 ile do\u011frulanan alan ad\u0131 <strong>ayn\u0131 m\u0131 veya uyumlu mu<\/strong> (alignment)?<\/li>\n<li>Ge\u00e7mediyse, al\u0131c\u0131 sunucu bu maili <strong>ne yaps\u0131n<\/strong> (kabul et, karantinaya al, reddet)?<\/li>\n<\/ul>\n<p>Bunu da yine DNS\u2019te bir TXT kayd\u0131 ile tan\u0131mlars\u0131n\u0131z. Ek olarak DMARC, alan ad\u0131n\u0131z i\u00e7in <strong>d\u00fczenli raporlar<\/strong> (RUA\/RUF) alman\u0131z\u0131 sa\u011flar; b\u00f6ylece sizi taklit etmeye \u00e7al\u0131\u015fan kaynaklar\u0131, yanl\u0131\u015f yap\u0131land\u0131r\u0131lm\u0131\u015f servisleri g\u00f6rebilirsiniz.<\/p>\n<p>Bu \u00fc\u00e7l\u00fc hakk\u0131nda teknik seviyede daha derine inmek isterseniz, <a href='https:\/\/www.dchost.com\/blog\/spf-dkim-ve-dmarc-nedir-ozel-alan-adi-ile-e-posta-dogrulamasini-cpanel-ve-vpste-sifirdan-kurmak\/'>SPF, DKIM ve DMARC nedir sorusuna daha teknik yan\u0131tlar verdi\u011fimiz rehbere<\/a> de mutlaka g\u00f6z at\u0131n.<\/p>\n<h2><span id=\"Adim_1_Mevcut_EPosta_Altyapinizi_Envanter_Cikarma\">Ad\u0131m 1 \u2013 Mevcut E\u2011Posta Altyap\u0131n\u0131z\u0131 Envanter \u00c7\u0131karma<\/span><\/h2>\n<p>Sa\u011flam bir SPF\/DMARC kurgusunun ilk ad\u0131m\u0131, asl\u0131nda DNS de\u011fil: <strong>Envanter<\/strong>. Hangi sistemlerin alan ad\u0131n\u0131z ad\u0131na e\u2011posta g\u00f6nderdi\u011fini bilmeden, do\u011fru bir SPF kayd\u0131 veya DMARC politikas\u0131 yazman\u0131z m\u00fcmk\u00fcn de\u011fil.<\/p>\n<h3><span id=\"Hangi_sistemler_eposta_gonderiyor\">Hangi sistemler e\u2011posta g\u00f6nderiyor?<\/span><\/h3>\n<p>A\u015fa\u011f\u0131daki sorular\u0131 kurum i\u00e7inde bir toplant\u0131da netle\u015ftirmenizi \u00f6neririz:<\/p>\n<ul>\n<li>Kurumsal e\u2011posta hesaplar\u0131 nerede bar\u0131nd\u0131r\u0131l\u0131yor? (\u00d6rne\u011fin DCHost <a href=\"https:\/\/www.dchost.com\/tr\/web-hosting\">payla\u015f\u0131ml\u0131 hosting<\/a>, DCHost e\u2011posta sunucusu veya kendi <a href=\"https:\/\/www.dchost.com\/tr\/vps\">VPS<\/a>\u2019iniz)<\/li>\n<li>Web sitenizden \u00e7\u0131kan formlar (ileti\u015fim, teklif, \u00fcyelik vb.) hangi sunucudan mail g\u00f6nderiyor?<\/li>\n<li>E\u2011ticaret siteniz (sipari\u015f, fatura, reset password mailleri) hangi IP veya SMTP \u00fczerinden gidiyor?<\/li>\n<li>Herhangi bir <strong>toplu mail \/ b\u00fclten<\/strong> servisi kullan\u0131yor musunuz? (Pazarlama e\u2011postalar\u0131)<\/li>\n<li>CRM, ERP, muhasebe yaz\u0131l\u0131m\u0131 gibi \u00fc\u00e7\u00fcnc\u00fc parti sistemler alan ad\u0131n\u0131zla mail g\u00f6nderiyor mu?<\/li>\n<\/ul>\n<p>Bu listeyi m\u00fcmk\u00fcn oldu\u011funca eksiksiz yap\u0131n. Tek bir unutulan servis, ileride DMARC politikan\u0131z s\u0131k\u0131la\u015ft\u0131\u011f\u0131nda; m\u00fc\u015fterilere ula\u015fmayan par\u00e7a par\u00e7a mailler olarak geri d\u00f6ner.<\/p>\n<h2><span id=\"Adim_2_SPF_Kaydini_Dogru_Kurmak\">Ad\u0131m 2 \u2013 SPF Kayd\u0131n\u0131 Do\u011fru Kurmak<\/span><\/h2>\n<p>Envanteri \u00e7\u0131kard\u0131ktan sonra ilk teknik ad\u0131m SPF. K\u00fc\u00e7\u00fck i\u015fletmeler i\u00e7in SPF\u2019in amac\u0131 basit: \u201c\u015eu sunucular d\u0131\u015f\u0131nda kimse benim ad\u0131ma mail g\u00f6nderemez.\u201d<\/p>\n<h3><span id=\"SPF_kaydinin_temel_yapisi\">SPF kayd\u0131n\u0131n temel yap\u0131s\u0131<\/span><\/h3>\n<p>SPF kayd\u0131 DNS\u2019te bir TXT kayd\u0131d\u0131r ve genelde \u015f\u00f6yle g\u00f6r\u00fcn\u00fcr:<\/p>\n<p><code>v=spf1 a mx ip4:1.2.3.4 include:servis\u2011ornek.com ~all<\/code><\/p>\n<p>Bunu par\u00e7alara ay\u0131ral\u0131m:<\/p>\n<ul>\n<li><strong>v=spf1<\/strong>: SPF s\u00fcr\u00fcm\u00fc (her zaman b\u00f6yle ba\u015flar).<\/li>\n<li><strong>a<\/strong>: Alan ad\u0131n\u0131z\u0131n A kayd\u0131ndaki IP, mail g\u00f6ndermeye yetkilidir.<\/li>\n<li><strong>mx<\/strong>: MX kayd\u0131n\u0131z\u0131n i\u015faret etti\u011fi mail sunucular\u0131 yetkilidir.<\/li>\n<li><strong>ip4:1.2.3.4<\/strong>: Belirli bir IPv4 adresi yetkilidir (gerekirse ip6: ile IPv6 da eklenebilir).<\/li>\n<li><strong>include:servis\u2011ornek.com<\/strong>: Harici bir servis kendi SPF kayd\u0131n\u0131 tan\u0131mlar; siz de onu dahil edersiniz.<\/li>\n<li><strong>~all<\/strong>: Yukar\u0131dakilerin d\u0131\u015f\u0131ndaki kaynaklar i\u00e7in \u201csoft\u2011fail\u201d (\u015f\u00fcpheli) i\u015fareti ver.<\/li>\n<\/ul>\n<h3><span id=\"Basit_bir_senaryo_Sadece_hosting_epostasi_kullaniyorsunuz\">Basit bir senaryo: Sadece hosting e\u2011postas\u0131 kullan\u0131yorsunuz<\/span><\/h3>\n<p>Diyelim ki alan ad\u0131n\u0131z DCHost payla\u015f\u0131ml\u0131 hosting \u00fczerinde ve e\u2011postalar\u0131 da ayn\u0131 hosting hesab\u0131ndaki mail sunucusundan g\u00f6nderiyorsunuz. \u00c7o\u011fu durumda a\u015fa\u011f\u0131dakine benzer basit bir SPF yeterli olur:<\/p>\n<p><code>v=spf1 a mx ~all<\/code><\/p>\n<p>Bu ifade \u201cweb sitemin IP\u2019si ve MX kay\u0131tlar\u0131m mail g\u00f6nderebilir, di\u011ferleri \u015f\u00fcpheli\u201d anlam\u0131na gelir. DCHost kontrol panelinde \u00e7o\u011fu zaman sizin i\u00e7in \u00f6nerilen SPF kayd\u0131n\u0131 g\u00f6rebilirsiniz; onu do\u011frudan DNS\u2019e eklemek en g\u00fcvenli yoldur.<\/p>\n<h3><span id=\"Toplu_mailbulten_servisi_de_kullaniyorsaniz\">Toplu mail\/b\u00fclten servisi de kullan\u0131yorsan\u0131z<\/span><\/h3>\n<p>Bu durumda, servis sa\u011flay\u0131c\u0131n\u0131z\u0131n d\u00f6k\u00fcmantasyonunda verdi\u011fi <strong>include:<\/strong> sat\u0131r\u0131n\u0131 SPF kayd\u0131n\u0131za eklemeniz gerekir. \u00d6rne\u011fin:<\/p>\n<p><code>v=spf1 a mx include:mailservis\u2011ornek.com ~all<\/code><\/p>\n<p>Burada kritik nokta, alan ad\u0131n\u0131z i\u00e7in <strong>sadece tek bir SPF kayd\u0131<\/strong> olmas\u0131 gerekti\u011fidir. \u0130ki farkl\u0131 TXT kayd\u0131 i\u00e7ine iki ayr\u0131 SPF yazarsan\u0131z, \u00e7o\u011fu al\u0131c\u0131 sunucu bunu \u201cge\u00e7ersiz SPF\u201d olarak g\u00f6r\u00fcr.<\/p>\n<h3><span id=\"all_mi_-all_mi\">\u201c~all\u201d m\u0131 \u201c-all\u201d m\u0131?<\/span><\/h3>\n<ul>\n<li><strong>~all (softfail)<\/strong>: Yetkisiz kaynaklar i\u00e7in \u201cbu maili \u015f\u00fcpheli g\u00f6r, ama direkt reddetmek zorunda de\u011filsin\u201d der.<\/li>\n<li><strong>-all (fail)<\/strong>: Yetkisiz kaynaklar i\u00e7in \u201cbu maili reddet\u201d demektir.<\/li>\n<\/ul>\n<p>K\u00fc\u00e7\u00fck i\u015fletmeler i\u00e7in, DMARC politikan\u0131z\u0131 da hen\u00fcz s\u0131k\u0131la\u015ft\u0131rmad\u0131ysan\u0131z, <strong>~all ile ba\u015flamak<\/strong> genelde daha g\u00fcvenlidir. Altyap\u0131n\u0131z olgunla\u015ft\u0131k\u00e7a, DMARC ile birlikte daha agresif politikalara ge\u00e7ilebilir. \u00c7ok say\u0131da harici servis kullan\u0131yorsan\u0131z ve SPF\u2019in <strong>10 DNS sorgusu limiti<\/strong>ne tak\u0131lma riskiniz varsa, daha ileri seviye optimizasyonlar i\u00e7in <a href='https:\/\/www.dchost.com\/blog\/gelismis-spf-yonetimi-10-dns-lookup-limitine-takilmadan-coklu-e-posta-servisi-kullanmak\/'>geli\u015fmi\u015f SPF y\u00f6netimi rehberimizi<\/a> inceleyebilirsiniz.<\/p>\n<h2><span id=\"Adim_3_DKIM_Imzasini_Etkinlestirmek\">Ad\u0131m 3 \u2013 DKIM \u0130mzas\u0131n\u0131 Etkinle\u015ftirmek<\/span><\/h2>\n<p>SPF yaln\u0131zca \u201changi sunucular\u201d sorusunu \u00e7\u00f6z\u00fcyor. DKIM ise \u201cbu mesaj yolda de\u011fi\u015ftirilmi\u015f mi, ger\u00e7ekten sizin alan ad\u0131n\u0131zdan \u00e7\u0131km\u0131\u015f m\u0131?\u201d sorusunu cevapl\u0131yor.<\/p>\n<h3><span id=\"DKIM_nasil_calisir\">DKIM nas\u0131l \u00e7al\u0131\u015f\u0131r?<\/span><\/h3>\n<ul>\n<li>Mail sunucunuzda, alan ad\u0131n\u0131z i\u00e7in bir <strong>\u00f6zel\/a\u00e7\u0131k anahtar \u00e7ifti<\/strong> olu\u015fturulur.<\/li>\n<li>\u00d6zel anahtar yaln\u0131zca mail sunucusunda tutulur ve her g\u00f6nderilen mail DKIM ile imzalan\u0131r.<\/li>\n<li>A\u00e7\u0131k anahtar ise DNS\u2019te <strong>TXT kayd\u0131<\/strong> olarak yay\u0131nlan\u0131r (\u00f6rne\u011fin <code>default._domainkey.firmaadi.com<\/code>).<\/li>\n<li>Al\u0131c\u0131 sunucu, e\u2011postadaki DKIM ba\u015fl\u0131\u011f\u0131n\u0131 okur, DNS\u2019ten a\u00e7\u0131k anahtar\u0131 \u00e7ekip imzay\u0131 do\u011frular.<\/li>\n<\/ul>\n<h3><span id=\"DCHost_paylasimli_hosting_veya_kurumsal_eposta_kullaniyorsaniz\">DCHost payla\u015f\u0131ml\u0131 hosting veya kurumsal e\u2011posta kullan\u0131yorsan\u0131z<\/span><\/h3>\n<p>cPanel\/DirectAdmin benzeri panellerde genellikle DKIM\u2019i etkinle\u015ftirmek i\u00e7in tek yapman\u0131z gereken, ilgili men\u00fcden \u201cDKIM\u2019i etkinle\u015ftir\u201d butonuna basmakt\u0131r. Panel sizin i\u00e7in:<\/p>\n<ul>\n<li>Anahtar \u00e7iftini \u00fcretir,<\/li>\n<li>DNS b\u00f6lgenize gerekli <code>_domainkey<\/code> TXT kayd\u0131n\u0131 ekler (veya size metni g\u00f6sterir),<\/li>\n<li>Mail sunucusunu bu anahtarla imzalayacak \u015fekilde yap\u0131land\u0131r\u0131r.<\/li>\n<\/ul>\n<p>E\u011fer alan ad\u0131n\u0131z DCHost DNS\u2019i \u00fczerinde, siteniz ve mailiniz de DCHost\u2019ta bar\u0131n\u0131yorsa, bu i\u015flem genellikle birka\u00e7 t\u0131klama ve k\u0131sa bir DNS yay\u0131l\u0131m s\u00fcresinden ibarettir.<\/p>\n<h3><span id=\"VPS_veya_dedicated_sunucuda_kendi_mail_sunucunuzu_yonetiyorsaniz\">VPS veya <a href=\"https:\/\/www.dchost.com\/tr\/fiziksel-sunucu\">dedicated sunucu<\/a>da kendi mail sunucunuzu y\u00f6netiyorsan\u0131z<\/span><\/h3>\n<p>Postfix + Dovecot, Exim veya ba\u015fka bir MTA \u00fczerinde DKIM kurulumu biraz daha teknik olsa da mant\u0131k ayn\u0131d\u0131r:<\/p>\n<ol>\n<li>DKIM i\u00e7in bir selector belirleyin (\u00f6rne\u011fin <code>default<\/code> veya <code>mail2026<\/code>).<\/li>\n<li>opendkim benzeri bir ara\u00e7la \u00f6zel\/a\u00e7\u0131k anahtar \u00e7ifti \u00fcretin.<\/li>\n<li>A\u00e7\u0131k anahtar\u0131, <code>selector._domainkey.alanadiniz.com<\/code> isminde TXT kayd\u0131 olarak DNS\u2019e ekleyin.<\/li>\n<li>MTA\u2019n\u0131z\u0131, \u00e7\u0131k\u0131\u015f yapan mailleri bu selector ile imzalayacak \u015fekilde yap\u0131land\u0131r\u0131n.<\/li>\n<\/ol>\n<p>VPS \u00fczerinde kendi MTA\u2019n\u0131z\u0131 kurmay\u0131 d\u00fc\u015f\u00fcn\u00fcyorsan\u0131z, <a href='https:\/\/www.dchost.com\/blog\/vpste-e-posta-sunucusu-kurulumu-postfix-dovecot-rspamd-ile-teslim-edilebilirlik-ve-ip-isitma-adim-adim\/'>VPS\u2019te Postfix + Dovecot tabanl\u0131 mail sunucusu kurulum rehberimiz<\/a> bu ad\u0131mda size olduk\u00e7a yard\u0131mc\u0131 olacakt\u0131r.<\/p>\n<h2><span id=\"Adim_4_DMARC_ile_Politika_Belirlemek\">Ad\u0131m 4 \u2013 DMARC ile Politika Belirlemek<\/span><\/h2>\n<p>SPF ve DKIM\u2019i kurduktan sonra, i\u015fi DMARC ile \u201cy\u00f6netilebilir\u201d hale getiriyoruz. DMARC sayesinde:<\/p>\n<ul>\n<li>SPF\/DKIM ba\u015far\u0131 durumuna g\u00f6re al\u0131c\u0131lar\u0131n nas\u0131l davranmas\u0131n\u0131 istedi\u011finizi s\u00f6ylersiniz.<\/li>\n<li>Aland\u0131\u011f\u0131n\u0131z ad\u0131na <strong>hangi IP\u2019lerin mail g\u00f6nderdi\u011fini<\/strong> d\u00fczenli raporlarla g\u00f6r\u00fcrs\u00fcn\u00fcz.<\/li>\n<\/ul>\n<h3><span id=\"Basit_bir_DMARC_kaydi_ornegi\">Basit bir DMARC kayd\u0131 \u00f6rne\u011fi<\/span><\/h3>\n<p>En temel DMARC kayd\u0131 \u015f\u00f6yle olabilir:<\/p>\n<p><code>_dmarc.firmaadi.com TXT \"v=DMARC1; p=none; rua=mailto:dmarc-rapor@firmaadi.com\"<\/code><\/p>\n<p>Buradaki alanlar:<\/p>\n<ul>\n<li><strong>v=DMARC1<\/strong>: DMARC s\u00fcr\u00fcm\u00fc.<\/li>\n<li><strong>p=none<\/strong>: Politika \u201cizle ama m\u00fcdahale etme\u201d modunda. Ba\u015far\u0131s\u0131z mailleri reddetme, ama rapor \u00fcret.<\/li>\n<li><strong>rua=mailto:\u2026<\/strong>: Aggregate (toplu) raporlar\u0131n gidece\u011fi mail adresi.<\/li>\n<\/ul>\n<p>K\u00fc\u00e7\u00fck i\u015fletmeler i\u00e7in <strong>ilk a\u015famada p=none<\/strong> ile ba\u015flamak en ak\u0131ll\u0131ca yakla\u015f\u0131md\u0131r. B\u00f6ylece hi\u00e7bir mail engellenmeden, hangi kaynaklar\u0131n SPF\/DKIM\/DMARC uyumlu oldu\u011funu g\u00f6r\u00fcr, hatalar\u0131 d\u00fczeltecek zaman kazan\u0131rs\u0131n\u0131z.<\/p>\n<h3><span id=\"Politikayi_sikilastirmak_quarantine_ve_reject\">Politikay\u0131 s\u0131k\u0131la\u015ft\u0131rmak: quarantine ve reject<\/span><\/h3>\n<p>SPF ve DKIM ayarlar\u0131n\u0131z oturduktan, DMARC raporlar\u0131n\u0131z\u0131 birka\u00e7 hafta izledikten sonra s\u0131radaki ad\u0131mlar \u015funlar olabilir:<\/p>\n<ul>\n<li><strong>p=quarantine<\/strong>: Uyumlu olmayan mailler karantinaya (\u00e7o\u011fu zaman spam klas\u00f6r\u00fcne) g\u00f6nderilir.<\/li>\n<li><strong>p=reject<\/strong>: Uyumlu olmayan mailler <strong>reddedilir<\/strong>, al\u0131c\u0131ya hi\u00e7 g\u00f6sterilmez.<\/li>\n<\/ul>\n<p>Genellikle tavsiye edilen yol haritas\u0131:<\/p>\n<ol>\n<li>\u0130lk 2\u20134 hafta: <code>p=none<\/code> ile sadece g\u00f6zlem.<\/li>\n<li>Sonraki d\u00f6nem: <code>p=quarantine; pct=25<\/code> gibi kademeli bir ge\u00e7i\u015f (trafik y\u00fczdesi ile oynayarak).<\/li>\n<li>Her \u015fey yolunda ve sahte g\u00f6nderim tespit etmiyorsan\u0131z: <code>p=reject; pct=100<\/code> noktas\u0131na do\u011fru ilerlemek.<\/li>\n<\/ol>\n<p>Bu ge\u00e7i\u015fi daha analitik ve rapor bazl\u0131 yapmak istiyorsan\u0131z, ad\u0131m ad\u0131m anlatt\u0131\u011f\u0131m\u0131z <a href='https:\/\/www.dchost.com\/blog\/dmarc-raporlari-aggregate-ve-forensic-analiz-ile-pnonedan-prejecte-gecis\/'>DMARC raporlar\u0131 ve p=none\u2019dan p=reject\u2019e ge\u00e7i\u015f rehberimizi<\/a> inceleyebilirsiniz.<\/p>\n<h2><span id=\"Adim_5_Test_Izleme_ve_Yaygin_Hatalari_Duzeltme\">Ad\u0131m 5 \u2013 Test, \u0130zleme ve Yayg\u0131n Hatalar\u0131 D\u00fczeltme<\/span><\/h2>\n<p>SPF, DKIM ve DMARC kay\u0131tlar\u0131n\u0131 ekledikten sonra i\u015fin en \u00f6nemli k\u0131sm\u0131 ba\u015fl\u0131yor: <strong>Test etmek ve izlemek.<\/strong><\/p>\n<h3><span id=\"Adim_adim_test_stratejisi\">Ad\u0131m ad\u0131m test stratejisi<\/span><\/h3>\n<ul>\n<li>Alan ad\u0131n\u0131zdan Gmail, Outlook vb. pop\u00fcler sa\u011flay\u0131c\u0131lara test maili g\u00f6nderin.<\/li>\n<li>Mail ba\u015fl\u0131klar\u0131n\u0131 (message headers) inceleyip <strong>SPF, DKIM ve DMARC sonu\u00e7lar\u0131n\u0131<\/strong> kontrol edin.<\/li>\n<li>\u00c7e\u015fitli online test ara\u00e7lar\u0131n\u0131 kullanarak alan ad\u0131n\u0131z\u0131 tarat\u0131n; birden fazla SPF kayd\u0131, hatal\u0131 syntax gibi sorunlar varsa g\u00f6stersin.<\/li>\n<li>DMARC raporlar\u0131n\u0131z gelmeye ba\u015flad\u0131ysa, d\u00fczenli olarak hangi IP\u2019lerin mail g\u00f6nderdi\u011fini g\u00f6zden ge\u00e7irin.<\/li>\n<\/ul>\n<h3><span id=\"En_sik_gordugumuz_SPFDKIMDMARC_hatalari\">En s\u0131k g\u00f6rd\u00fc\u011f\u00fcm\u00fcz SPF\/DKIM\/DMARC hatalar\u0131<\/span><\/h3>\n<ul>\n<li><strong>Birden fazla SPF kayd\u0131<\/strong>: Ayn\u0131 alan ad\u0131 i\u00e7in iki ayr\u0131 \u201cv=spf1\u201d tan\u0131m\u0131 yapmak.<\/li>\n<li><strong>Eksik servisler<\/strong>: CRM, b\u00fclten arac\u0131 veya \u00f6deme sistemi gibi g\u00f6ndericilerin SPF\u2019e eklenmemesi.<\/li>\n<li><strong>DKIM sadece baz\u0131 sistemlerde a\u00e7\u0131k<\/strong>: \u00d6rne\u011fin, web siteniz DKIM\u2019siz g\u00f6nderirken, kurumsal mailleriniz DKIM\u2019li.<\/li>\n<li><strong>DMARC alignment hatalar\u0131<\/strong>: G\u00f6nderen adresi <code>info@firmaadi.com<\/code> iken, DKIM <code>mail.farklidomain.com<\/code> \u00fczerinden geliyor.<\/li>\n<li><strong>Forwarding kaynakl\u0131 SPF bozulmalar\u0131<\/strong>: Baz\u0131 y\u00f6nlendirme senaryolar\u0131nda SPF sonucu fail olur, bu durumda DKIM \u00e7ok daha kritik hale gelir.<\/li>\n<\/ul>\n<p>E\u2011postalar\u0131n\u0131z halen zaman zaman spam klas\u00f6r\u00fcne d\u00fc\u015f\u00fcyorsa, sadece DNS kay\u0131tlar\u0131na de\u011fil; i\u00e7erik, IP itibar\u0131 ve al\u0131c\u0131 davran\u0131\u015flar\u0131na da bakman\u0131z gerekir. Bunun i\u00e7in haz\u0131rlad\u0131\u011f\u0131m\u0131z <a href='https:\/\/www.dchost.com\/blog\/e-postalar-neden-spam-klasorune-dusuyor-paylasimli-hosting-ve-vps-icin-teslim-edilebilirlik-kontrol-listesi\/'>teslim edilebilirlik kontrol listesi<\/a> size kapsaml\u0131 bir bak\u0131\u015f a\u00e7\u0131s\u0131 sunacakt\u0131r.<\/p>\n<h2><span id=\"Kucuk_Isletmeler_Icin_Pratik_Senaryolar\">K\u00fc\u00e7\u00fck \u0130\u015fletmeler \u0130\u00e7in Pratik Senaryolar<\/span><\/h2>\n<h3><span id=\"Senaryo_1_Sadece_hosting_uzerindeki_kurumsal_eposta\">Senaryo 1: Sadece hosting \u00fczerindeki kurumsal e\u2011posta<\/span><\/h3>\n<p>Alan ad\u0131n\u0131z ve web siteniz DCHost payla\u015f\u0131ml\u0131 hosting\u2019te, kurumsal mailleri de ayn\u0131 sunucudan kullan\u0131yorsunuz. Bu durumda tipik yap\u0131 \u015f\u00f6yle olabilir:<\/p>\n<ul>\n<li>SPF: <code>v=spf1 a mx ~all<\/code><\/li>\n<li>DKIM: cPanel veya panelinizde tek t\u0131kla etkin, <code>default._domainkey<\/code> TXT kayd\u0131 DNS\u2019te.<\/li>\n<li>DMARC: <code>v=DMARC1; p=none; rua=mailto:dmarc-rapor@alanadiniz.com<\/code><\/li>\n<\/ul>\n<p>Daha sonra DMARC raporlar\u0131n\u0131 izleyip beklenmedik kaynak yoksa politikay\u0131 <code>quarantine<\/code> veya <code>reject<\/code>e \u00e7ekebilirsiniz. B\u00f6yle basit bir kurulum i\u00e7in <a href='https:\/\/www.dchost.com\/blog\/kendi-alan-adinizla-kurumsal-e-posta-kurma-rehberi\/'>kendi alan ad\u0131n\u0131zla kurumsal e\u2011posta kurma rehberimiz<\/a> genel mimariyi anlaman\u0131za da yard\u0131mc\u0131 olacakt\u0131r.<\/p>\n<h3><span id=\"Senaryo_2_Web_sitesi_transactional_mailler_ayni_hostingte_pazarlama_mailleri_harici_serviste\">Senaryo 2: Web sitesi + transactional mailler ayn\u0131 hosting\u2019te, pazarlama mailleri harici serviste<\/span><\/h3>\n<p>Bu senaryoda:<\/p>\n<ul>\n<li>Kurumsal mailler ve site formlar\u0131: DCHost mail sunucusundan \u00e7\u0131k\u0131yor.<\/li>\n<li>B\u00fclten\/pazarlama mailleri: Harici bir toplu mail sa\u011flay\u0131c\u0131s\u0131ndan \u00e7\u0131k\u0131yor.<\/li>\n<\/ul>\n<p>\u00d6rnek SPF yap\u0131s\u0131 \u015f\u00f6yle olabilir:<\/p>\n<p><code>v=spf1 a mx include:bulkmail\u2011ornek.com ~all<\/code><\/p>\n<p>DKIM taraf\u0131nda hem DCHost mail sunucusu hem de toplu mail sa\u011flay\u0131c\u0131s\u0131n\u0131n DKIM anahtarlar\u0131n\u0131n DNS\u2019te do\u011fru \u015fekilde tan\u0131ml\u0131 oldu\u011fundan emin olun. DMARC raporlar\u0131nda, bu iki farkl\u0131 kaynaktan gelen maillerin uyumlu g\u00f6r\u00fcn\u00fcp g\u00f6r\u00fcnmedi\u011fini takip ederek, kademeli olarak <code>p=quarantine<\/code>e ge\u00e7ebilirsiniz.<\/p>\n<h3><span id=\"Senaryo_3_Kendi_VPSinizde_mail_sunucusu_calistiriyorsunuz\">Senaryo 3: Kendi VPS\u2019inizde mail sunucusu \u00e7al\u0131\u015ft\u0131r\u0131yorsunuz<\/span><\/h3>\n<p>Daha ileri seviyede, DCHost VPS veya dedicated sunucu \u00fczerinde kendi Postfix\/Exim tabanl\u0131 mail sunucunuzu i\u015fletiyorsan\u0131z, a\u015fa\u011f\u0131dakiler kritik hale gelir:<\/p>\n<ul>\n<li>SPF: Sunucunuzun IP\u2019sini <code>ip4:<\/code> veya <code>ip6:<\/code> ile a\u00e7\u0131k\u00e7a belirtin.<\/li>\n<li>DKIM: Kendi selector\u2019\u0131n\u0131zla anahtar \u00fcretin, DNS\u2019te <code>_domainkey<\/code> kayd\u0131n\u0131 yay\u0131nlay\u0131n.<\/li>\n<li>DMARC: \u00d6nce <code>p=none<\/code>, ard\u0131ndan kademeli s\u0131k\u0131la\u015ft\u0131rma.<\/li>\n<li><strong>PTR (reverse DNS)<\/strong>: IP\u2019nizin ters DNS kayd\u0131, kulland\u0131\u011f\u0131n\u0131z HELO\/EHLO ismiyle uyumlu olmal\u0131.<\/li>\n<\/ul>\n<p>Reverse DNS ayar\u0131n\u0131 do\u011fru yapman\u0131n e\u2011posta teslimi \u00fczerindeki etkisini detayl\u0131 anlatt\u0131\u011f\u0131m\u0131z <a href='https:\/\/www.dchost.com\/blog\/ptr-reverse-dns-kaydi-vps-ipniz-icin-dogru-ayar-ve-e-posta-teslimine-etkisi\/'>PTR (reverse DNS) rehberimize<\/a> mutlaka g\u00f6z at\u0131n. Ayr\u0131ca, yeni bir dedicated IP\u2019yi yava\u015f yava\u015f \u0131s\u0131tmak ve kara listelerden uzak durmak i\u00e7in <a href='https:\/\/www.dchost.com\/blog\/dedicated-ip-isitma-ve-e-posta-itibari-yonetimi\/'>IP \u0131s\u0131tma ve e\u2011posta itibar\u0131 y\u00f6netimi rehberimizi<\/a> de kullanabilirsiniz.<\/p>\n<h2><span id=\"Altyapi_Tarafini_DCHost_ile_Nasil_Basitlestiriyoruz\">Altyap\u0131 Taraf\u0131n\u0131 DCHost ile Nas\u0131l Basitle\u015ftiriyoruz?<\/span><\/h2>\n<p>SPF, DKIM ve DMARC teoride \u00fc\u00e7 DNS kayd\u0131 gibi g\u00f6r\u00fcnse de pratikte, yanl\u0131\u015f bir TXT kayd\u0131 veya eksik bir include y\u00fcz\u00fcnden saatlerce kaybolan maillerle u\u011fra\u015fmak m\u00fcmk\u00fcn. DCHost olarak burada iki noktada y\u00fck\u00fcn\u00fcz\u00fc almaya \u00e7al\u0131\u015f\u0131yoruz:<\/p>\n<ul>\n<li><strong>Haz\u0131r \u015fablonlar ve otomatik kay\u0131tlar<\/strong>: Payla\u015f\u0131ml\u0131 hosting ve kurumsal e\u2011posta paketlerimizde, SPF ve DKIM i\u00e7in \u00e7o\u011fu zaman tek t\u0131kla etkinle\u015ftirme ve \u00f6nerilen kay\u0131tlar\u0131 g\u00f6rme imk\u00e2n\u0131n\u0131z oluyor.<\/li>\n<li><strong>VPS\/dedicated dan\u0131\u015fmanl\u0131\u011f\u0131<\/strong>: Kendi MTA\u2019n\u0131z\u0131 kurdu\u011funuz senaryolarda; reverse DNS, SPF\/DKIM\/DMARC ve IP \u0131s\u0131tma i\u00e7in teknik ekibimizle birlikte bir yol haritas\u0131 \u00e7\u0131karabiliyoruz.<\/li>\n<\/ul>\n<p>E\u011fer \u00e7ok kirac\u0131l\u0131 (multi\u2011tenant) bir yap\u0131da onlarca m\u00fc\u015fteri alan ad\u0131n\u0131 tek e\u2011posta altyap\u0131s\u0131nda y\u00f6netiyorsan\u0131z, geli\u015fmi\u015f DMARC, BIMI ve marka korumas\u0131 taraf\u0131nda da yard\u0131ma ihtiyac\u0131n\u0131z olabilir. Bunun i\u00e7in <a href='https:\/\/www.dchost.com\/blog\/gelismis-dmarc-ve-bimi-rua-ruf-raporlarindan-marka-gostergesine-nasil-yol-alinir\/'>geli\u015fmi\u015f DMARC ve BIMI rehberimizi<\/a> inceleyebilir veya do\u011frudan DCHost ekibiyle ileti\u015fime ge\u00e7ebilirsiniz.<\/p>\n<h2><span id=\"Ozet_ve_Uygulanabilir_Yol_Haritasi\">\u00d6zet ve Uygulanabilir Yol Haritas\u0131<\/span><\/h2>\n<p>Anlatt\u0131klar\u0131m\u0131z\u0131 k\u00fc\u00e7\u00fck bir i\u015fletme bak\u0131\u015f a\u00e7\u0131s\u0131ndan toparlayal\u0131m:<\/p>\n<ol>\n<li><strong>Envanter \u00e7\u0131kar\u0131n<\/strong>: Alan ad\u0131n\u0131z ad\u0131na mail g\u00f6nderen t\u00fcm sistemleri listeleyin.<\/li>\n<li><strong>SPF\u2019i sade ve do\u011fru kurun<\/strong>: Tek bir SPF kayd\u0131, t\u00fcm yetkili IP ve servisleri kapsas\u0131n, <code>~all<\/code> ile ba\u015flay\u0131n.<\/li>\n<li><strong>DKIM\u2019i her yerde etkinle\u015ftirin<\/strong>: M\u00fcmk\u00fcnse t\u00fcm g\u00f6nderici sistemlerde DKIM imzas\u0131 kullan\u0131n.<\/li>\n<li><strong>DMARC ile izlemeye ba\u015flay\u0131n<\/strong>: <code>p=none<\/code> ve <code>rua=<\/code> ile rapor toplamaya ba\u015flay\u0131n, birka\u00e7 hafta veriyi inceleyin.<\/li>\n<li><strong>Kademeli s\u0131k\u0131la\u015ft\u0131rma yap\u0131n<\/strong>: Hatalar\u0131 giderdik\u00e7e <code>quarantine<\/code> ve <code>reject<\/code> politikalar\u0131na do\u011fru ilerleyin.<\/li>\n<\/ol>\n<p>Bug\u00fcn yapabilece\u011finiz somut ad\u0131m \u015fu: DNS y\u00f6netim ekran\u0131n\u0131za girin, alan ad\u0131n\u0131z i\u00e7in SPF, DKIM ve DMARC kay\u0131tlar\u0131 ger\u00e7ekten var m\u0131 ve g\u00fcncel mi kontrol edin. Emin de\u011filseniz, DCHost\u2019ta bar\u0131nd\u0131rd\u0131\u011f\u0131n\u0131z alan adlar\u0131 i\u00e7in destek talebi olu\u015fturarak birlikte \u00fczerinden ge\u00e7ebiliriz. Daha teknik ve derin bir kurulum yapmak isteyenler i\u00e7in, <a href='https:\/\/www.dchost.com\/blog\/spf-dkim-dmarc-ve-rdns-ile-e-posta-teslim-edilebilirligini-nasil-adim-adim-yukseltirsin\/'>SPF, DKIM, DMARC ve rDNS ile e\u2011posta teslim edilebilirli\u011fini ad\u0131m ad\u0131m y\u00fckseltme rehberimiz<\/a> ikinci ad\u0131m\u0131n\u0131z olabilir.<\/p>\n<p>E\u2011posta, \u00f6zellikle k\u00fc\u00e7\u00fck i\u015fletmeler i\u00e7in h\u00e2l\u00e2 en kritik kanallardan biri. \u00dc\u00e7 DNS kayd\u0131yla, hem marka itibar\u0131n\u0131z\u0131 hem de m\u00fc\u015fteri g\u00fcvenini ciddi \u015fekilde g\u00fc\u00e7lendirebilirsiniz. Gerek payla\u015f\u0131ml\u0131 hosting, gerek VPS\/dedicated ya da sadece e\u2011posta odakl\u0131 mimarilerde SPF, DKIM ve DMARC\u2019\u0131 do\u011fru kurmak i\u00e7in DCHost ekibi olarak yan\u0131n\u0131zday\u0131z.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u0130&ccedil;indekiler1 K\u00fc\u00e7\u00fck \u0130\u015fletmeler \u0130\u00e7in SPF, DKIM ve DMARC Neden Bu Kadar \u00d6nemli?2 Temel Kavramlar: SPF, DKIM, DMARC ve DNS \u0130li\u015fkisi2.1 DNS nedir, neden i\u015fin tam ortas\u0131nda?2.2 SPF (Sender Policy Framework) nedir?2.3 DKIM (DomainKeys Identified Mail) nedir?2.4 DMARC (Domain\u2011based Message Authentication, Reporting and Conformance) nedir?3 Ad\u0131m 1 \u2013 Mevcut E\u2011Posta Altyap\u0131n\u0131z\u0131 Envanter \u00c7\u0131karma3.1 Hangi sistemler e\u2011posta [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4435,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-4434","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-teknoloji"],"_links":{"self":[{"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/posts\/4434","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/comments?post=4434"}],"version-history":[{"count":0,"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/posts\/4434\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/media\/4435"}],"wp:attachment":[{"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/media?parent=4434"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/categories?post=4434"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/tags?post=4434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}