{"id":2296,"date":"2025-11-22T19:17:11","date_gmt":"2025-11-22T16:17:11","guid":{"rendered":"https:\/\/www.dchost.com\/blog\/cpanelde-e%e2%80%91posta-spam-filtreleme-spamassassin-rbl-kara-liste-ve-karantina-yonetimi\/"},"modified":"2025-11-22T19:17:11","modified_gmt":"2025-11-22T16:17:11","slug":"cpanelde-e%e2%80%91posta-spam-filtreleme-spamassassin-rbl-kara-liste-ve-karantina-yonetimi","status":"publish","type":"post","link":"https:\/\/www.dchost.com\/blog\/cpanelde-e%e2%80%91posta-spam-filtreleme-spamassassin-rbl-kara-liste-ve-karantina-yonetimi\/","title":{"rendered":"cPanel\u2019de E\u2011posta Spam Filtreleme: SpamAssassin, RBL Kara Liste ve Karantina Y\u00f6netimi"},"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=\"#cPanelde_Eposta_Spam_Filtreleme_Neden_Bu_Kadar_Kritik\"><span class=\"toc_number toc_depth_1\">1<\/span> cPanel\u2019de E\u2011posta Spam Filtreleme Neden Bu Kadar Kritik?<\/a><\/li><li><a href=\"#cPanelde_Spam_Mimarisi_Hangi_Bilesen_Ne_Is_Yapar\"><span class=\"toc_number toc_depth_1\">2<\/span> cPanel\u2019de Spam Mimarisi: Hangi Bile\u015fen Ne \u0130\u015f Yapar?<\/a><\/li><li><a href=\"#SpamAssassin_Nedir_cPanelde_Nasil_Calisir\"><span class=\"toc_number toc_depth_1\">3<\/span> SpamAssassin Nedir, cPanel\u2019de Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/a><ul><li><a href=\"#SpamAssassin_Puanlama_Mantigi\"><span class=\"toc_number toc_depth_2\">3.1<\/span> SpamAssassin Puanlama Mant\u0131\u011f\u0131<\/a><\/li><li><a href=\"#cPanelde_SpamAssassini_Etkinlestirme\"><span class=\"toc_number toc_depth_2\">3.2<\/span> cPanel\u2019de SpamAssassin\u2019i Etkinle\u015ftirme<\/a><\/li><li><a href=\"#Onerilen_Baslangic_Esik_Degeri_Score\"><span class=\"toc_number toc_depth_2\">3.3<\/span> \u00d6nerilen Ba\u015flang\u0131\u00e7 E\u015fik De\u011feri (Score)<\/a><\/li><\/ul><\/li><li><a href=\"#SpamAssassin_Ayarlari_Beyaz_Liste_Kara_Liste_ve_Ozel_Kurallar\"><span class=\"toc_number toc_depth_1\">4<\/span> SpamAssassin Ayarlar\u0131: Beyaz Liste, Kara Liste ve \u00d6zel Kurallar<\/a><ul><li><a href=\"#Beyaz_Liste_Whitelist_ile_Onemli_Gonderenleri_Koruma\"><span class=\"toc_number toc_depth_2\">4.1<\/span> Beyaz Liste (Whitelist) ile \u00d6nemli G\u00f6nderenleri Koruma<\/a><\/li><li><a href=\"#Kara_Liste_Blacklist_ile_Surekli_Rahatsiz_Edenleri_Engelleme\"><span class=\"toc_number toc_depth_2\">4.2<\/span> Kara Liste (Blacklist) ile S\u00fcrekli Rahats\u0131z Edenleri Engelleme<\/a><\/li><li><a href=\"#Ozel_Puan_Kurallari_ile_Hassasiyeti_Ayarlama\"><span class=\"toc_number toc_depth_2\">4.3<\/span> \u00d6zel Puan Kurallar\u0131 ile Hassasiyeti Ayarlama<\/a><\/li><\/ul><\/li><li><a href=\"#RBL_Real-time_Blackhole_List_Kara_Listeleri_Sunucu_Seviyesinde_Savunma\"><span class=\"toc_number toc_depth_1\">5<\/span> RBL (Real-time Blackhole List) Kara Listeleri: Sunucu Seviyesinde Savunma<\/a><ul><li><a href=\"#RBL_Nedir_Nasil_Calisir\"><span class=\"toc_number toc_depth_2\">5.1<\/span> RBL Nedir, Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/a><\/li><li><a href=\"#cPanelWHMde_RBL_Kara_Listesi_Ekleme\"><span class=\"toc_number toc_depth_2\">5.2<\/span> cPanel\/WHM\u2019de RBL Kara Listesi Ekleme<\/a><\/li><li><a href=\"#RBL_ve_Yanlis_Pozitif_Riski\"><span class=\"toc_number toc_depth_2\">5.3<\/span> RBL ve Yanl\u0131\u015f Pozitif Riski<\/a><\/li><\/ul><\/li><li><a href=\"#Karantina_Spam_Box_Yonetimi_Silmek_Yerine_Guvenli_Sandiga_Kaldirmak\"><span class=\"toc_number toc_depth_1\">6<\/span> Karantina (Spam Box) Y\u00f6netimi: Silmek Yerine G\u00fcvenli Sand\u0131\u011fa Kald\u0131rmak<\/a><ul><li><a href=\"#Spam_Box_Nedir\"><span class=\"toc_number toc_depth_2\">6.1<\/span> Spam Box Nedir?<\/a><\/li><li><a href=\"#cPanelde_Spam_Boxi_Etkinlestirme\"><span class=\"toc_number toc_depth_2\">6.2<\/span> cPanel\u2019de Spam Box\u2019\u0131 Etkinle\u015ftirme<\/a><\/li><li><a href=\"#Otomatik_Temizleme_Stratejisi\"><span class=\"toc_number toc_depth_2\">6.3<\/span> Otomatik Temizleme Stratejisi<\/a><\/li><li><a href=\"#Gercek_Bir_Senaryo_Ajans_Hesabinda_Kaybolan_Teklifler\"><span class=\"toc_number toc_depth_2\">6.4<\/span> Ger\u00e7ek Bir Senaryo: Ajans Hesab\u0131nda Kaybolan Teklifler<\/a><\/li><\/ul><\/li><li><a href=\"#Kullanici_ve_Global_Eposta_Filtreleriyle_Ince_Ayar\"><span class=\"toc_number toc_depth_1\">7<\/span> Kullan\u0131c\u0131 ve Global E\u2011posta Filtreleriyle \u0130nce Ayar<\/a><ul><li><a href=\"#Global_Alan_Adi_Bazli_Eposta_Filtreleri\"><span class=\"toc_number toc_depth_2\">7.1<\/span> Global (Alan Ad\u0131 Bazl\u0131) E\u2011posta Filtreleri<\/a><\/li><li><a href=\"#Kullanici_Bazli_Eposta_Filtreleri\"><span class=\"toc_number toc_depth_2\">7.2<\/span> Kullan\u0131c\u0131 Bazl\u0131 E\u2011posta Filtreleri<\/a><\/li><\/ul><\/li><li><a href=\"#SPF_DKIM_DMARC_ve_Spam_Filtreleri_Arasindaki_Iliski\"><span class=\"toc_number toc_depth_1\">8<\/span> SPF, DKIM, DMARC ve Spam Filtreleri Aras\u0131ndaki \u0130li\u015fki<\/a><\/li><li><a href=\"#Gelismis_Guvenlik_Katmani_MTASTS_TLSRPT_ve_Eposta_Teslim_Edilebilirligi\"><span class=\"toc_number toc_depth_1\">9<\/span> Geli\u015fmi\u015f G\u00fcvenlik Katman\u0131: MTA\u2011STS, TLS\u2011RPT ve E\u2011posta Teslim Edilebilirli\u011fi<\/a><\/li><li><a href=\"#DCHost_Tarafinda_cPanel_Eposta_Altyapisini_Nasil_Kurguluyoruz\"><span class=\"toc_number toc_depth_1\">10<\/span> DCHost Taraf\u0131nda cPanel E\u2011posta Altyap\u0131s\u0131n\u0131 Nas\u0131l Kurguluyoruz?<\/a><\/li><li><a href=\"#Ozet_ve_Yol_Haritasi_cPanelde_Saglam_Bir_Spam_Savunmasi_Kurmak\"><span class=\"toc_number toc_depth_1\">11<\/span> \u00d6zet ve Yol Haritas\u0131: cPanel\u2019de Sa\u011flam Bir Spam Savunmas\u0131 Kurmak<\/a><\/li><\/ul><\/div>\n<h2><span id=\"cPanelde_Eposta_Spam_Filtreleme_Neden_Bu_Kadar_Kritik\">cPanel\u2019de E\u2011posta Spam Filtreleme Neden Bu Kadar Kritik?<\/span><\/h2>\n<p>E\u2011posta trafi\u011finiz b\u00fcy\u00fcd\u00fck\u00e7e spam sadece gelen kutusunu kirleten bir g\u00fcr\u00fclt\u00fc olmaktan \u00e7\u0131k\u0131p, do\u011frudan i\u015f s\u00fcre\u00e7lerini yava\u015flatan, kullan\u0131c\u0131lar\u0131 yoran ve bazen de oltalama (phishing) ile ciddi veri s\u0131z\u0131nt\u0131lar\u0131na yol a\u00e7an bir riske d\u00f6n\u00fc\u015f\u00fcr. \u00d6zellikle cPanel kullanan ajanslar, e\u2011ticaret siteleri ve kurumsal ekipler i\u00e7in iyi ayarlanmam\u0131\u015f bir spam filtresi; ka\u00e7\u0131r\u0131lan \u00f6nemli tekliflere, kaybolan m\u00fc\u015fteri mesajlar\u0131na ve bo\u015fa harcanan mesaiye neden olur.<\/p>\n<p>cPanel\u2019in i\u00e7inde yerle\u015fik gelen <strong>Apache SpamAssassin<\/strong>, <strong>RBL (Real-time Blackhole List) kara listeleri<\/strong> ve <strong>karantina (Spam Box) y\u00f6netimi<\/strong> do\u011fru kurguland\u0131\u011f\u0131nda, spam y\u00fck\u00fcn\u00fc dramatik bi\u00e7imde azaltabilir ve kullan\u0131c\u0131lar\u0131 ger\u00e7ekten g\u00f6rmeleri gereken e\u2011postalara odaklayabilir. Ancak varsay\u0131lan ayarlar her zaman sizin senaryonuza uymayabilir; puan e\u015fikleri, kara liste kaynaklar\u0131, karantina s\u00fcresi ve kullan\u0131c\u0131 bazl\u0131 filtreler mutlaka g\u00f6zden ge\u00e7irilmelidir.<\/p>\n<p>Bu rehberde, DCHost \u00fczerinde cPanel kullanan bir hesab\u0131 \u00f6rnek alarak SpamAssassin\u2019i nas\u0131l etkin ve g\u00fcvenli \u015fekilde ayarlayabilece\u011finizi, RBL kara listelerini nas\u0131l devreye al\u0131p izlemeniz gerekti\u011fini ve karantinaya d\u00fc\u015fen e\u2011postalar\u0131 y\u00f6netirken nelere dikkat etmeniz gerekti\u011fini ad\u0131m ad\u0131m payla\u015faca\u011f\u0131m. Amac\u0131m\u0131z, hem spam\u2019den maksimum kurtulmak hem de <strong>yanl\u0131\u015f pozitifleri<\/strong> (yani ger\u00e7ek e\u2011postalar\u0131n spam\u2019e d\u00fc\u015fmesini) minimuma indirmek.<\/p>\n<h2><span id=\"cPanelde_Spam_Mimarisi_Hangi_Bilesen_Ne_Is_Yapar\">cPanel\u2019de Spam Mimarisi: Hangi Bile\u015fen Ne \u0130\u015f Yapar?<\/span><\/h2>\n<p>cPanel taraf\u0131nda spam y\u00f6netimi kabaca \u00fc\u00e7 katmandan olu\u015fur:<\/p>\n<ul>\n<li><strong>Gelen SMTP katman\u0131:<\/strong> Sunucuya ba\u011flanan uzak e\u2011posta sunucular\u0131n\u0131n IP ve protokol seviyesinde incelendi\u011fi, RBL kara listelerinin devreye girdi\u011fi nokta.<\/li>\n<li><strong>\u0130\u00e7erik filtreleme katman\u0131 (SpamAssassin):<\/strong> Mesaj ba\u015fl\u0131klar\u0131, i\u00e7erik, ekler ve \u00e7e\u015fitli imzalar \u00fczerinden puanlama yapan, bayes istatistikleri ve kurallarla \u00e7al\u0131\u015fan katman.<\/li>\n<li><strong>Kullan\u0131c\u0131 filtreleri ve karantina katman\u0131:<\/strong> cPanel kullan\u0131c\u0131lar\u0131n\u0131n kendi hesaplar\u0131 \u00f6zelinde ek kurallar tan\u0131mlad\u0131\u011f\u0131; iletme, silme veya karantina gibi aksiyonlar\u0131n al\u0131nd\u0131\u011f\u0131 son katman.<\/li>\n<\/ul>\n<p>Bu yap\u0131y\u0131 anlamak \u00f6nemli; \u00e7\u00fcnk\u00fc baz\u0131 sorunlar (\u00f6rne\u011fin sunucu IP\u2019sinin kara listeye girmesi) <em>SMTP katman\u0131nda<\/em>, baz\u0131lar\u0131 ise (\u00f6rne\u011fin bir m\u00fc\u015fterinin \u00f6nemli e\u2011mailsinin s\u00fcrekli spam\u2019e d\u00fc\u015fmesi) <em>i\u00e7erik filtreleme<\/em> veya <em>kullan\u0131c\u0131 filtrelerinde<\/em> \u00e7\u00f6z\u00fclmelidir. Daha geni\u015f bir bak\u0131\u015f i\u00e7in, e\u2011posta teslim edilebilirli\u011fini etkileyen SPF, DKIM, DMARC ve rDNS taraf\u0131n\u0131 detayl\u0131 anlatt\u0131\u011f\u0131m\u0131z <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 art\u0131rma rehberine<\/a> mutlaka g\u00f6z at\u0131n.<\/p>\n<h2><span id=\"SpamAssassin_Nedir_cPanelde_Nasil_Calisir\">SpamAssassin Nedir, cPanel\u2019de Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/span><\/h2>\n<p><strong>SpamAssassin<\/strong>, gelen her e\u2011postaya \u00e7e\u015fitli kurallara g\u00f6re puan veren bir spam filtreleme motorudur. Mesaj\u0131n ald\u0131\u011f\u0131 toplam puan belirledi\u011finiz e\u015fi\u011fi a\u015farsa, e\u2011posta \u201cspam\u201d olarak i\u015faretlenir veya karantinaya g\u00f6nderilir.<\/p>\n<h3><span id=\"SpamAssassin_Puanlama_Mantigi\">SpamAssassin Puanlama Mant\u0131\u011f\u0131<\/span><\/h3>\n<p>SpamAssassin, her mesaj i\u00e7in onlarca testi bir arada uygular:<\/p>\n<ul>\n<li><strong>Ba\u015fl\u0131k (Header) kontrolleri:<\/strong> Sahte From adresleri, tutars\u0131z Received zincirleri, \u015f\u00fcpheli HELO\/SMTP bilgileri.<\/li>\n<li><strong>\u0130\u00e7erik analizi:<\/strong> S\u0131k kullan\u0131lan spam anahtar kelimeleri, HTML\/Metin oran\u0131, g\u00f6m\u00fcl\u00fc resimler ve linkler.<\/li>\n<li><strong>DNS tabanl\u0131 kontroller:<\/strong> SPF sonucu, DKIM do\u011frulamas\u0131, baz\u0131 DNSBL\/RBL i\u015faretleri.<\/li>\n<li><strong>Bayes istatistikleri:<\/strong> Sisteme daha \u00f6nce \u00f6\u011fretilmi\u015f \u00f6rnek spam ve ham posta istatistiklerine g\u00f6re olas\u0131l\u0131k hesab\u0131.<\/li>\n<\/ul>\n<p>Her kural belirli bir <strong>puan<\/strong> ekler veya \u00e7\u0131kar\u0131r. \u00d6rne\u011fin SPF ba\u015far\u0131s\u0131zsa +2, DKIM ba\u015far\u0131s\u0131zsa +2, \u201c%100 kazan\u00e7\u201d t\u00fcr\u00fc kelimeler tespit edilirse +3 gibi. Toplam puan\u0131n\u0131z e\u015fik de\u011ferini ge\u00e7erse, mesaj spam say\u0131l\u0131r.<\/p>\n<h3><span id=\"cPanelde_SpamAssassini_Etkinlestirme\">cPanel\u2019de SpamAssassin\u2019i Etkinle\u015ftirme<\/span><\/h3>\n<p>cPanel aray\u00fcz\u00fcnde SpamAssassin\u2019i a\u00e7mak i\u00e7in:<\/p>\n<ol>\n<li>cPanel\u2019e giri\u015f yap\u0131n.<\/li>\n<li><strong>E\u2011Posta<\/strong> b\u00f6l\u00fcm\u00fcnden <strong>Apache SpamAssassin<\/strong> veya <strong>Spam Filters<\/strong> (cPanel s\u00fcr\u00fcm\u00fcne g\u00f6re de\u011fi\u015febilir) men\u00fcs\u00fcne girin.<\/li>\n<li><strong>SpamAssassin\u2019i Etkinle\u015ftir<\/strong> veya <strong>Enable SpamAssassin<\/strong> butonuna t\u0131klay\u0131n.<\/li>\n<\/ol>\n<p>Bu noktadan sonra gelen e\u2011postalar SpamAssassin taraf\u0131ndan puanlan\u0131r ve konu sat\u0131r\u0131na eklenen <code>***SPAM***<\/code> etiketi veya mesaj ba\u015fl\u0131\u011f\u0131na eklenen \u00f6zel header\u2019lar \u00fczerinden i\u015faretlenir.<\/p>\n<h3><span id=\"Onerilen_Baslangic_Esik_Degeri_Score\">\u00d6nerilen Ba\u015flang\u0131\u00e7 E\u015fik De\u011feri (Score)<\/span><\/h3>\n<p>SpamAssassin i\u00e7in tipik e\u015fik de\u011feri <strong>5.0<\/strong> olarak gelir. Bu genellikle iyi bir ba\u015flang\u0131\u00e7t\u0131r, ancak her senaryo farkl\u0131 olabilir:<\/p>\n<ul>\n<li><strong>5\u20136 aras\u0131:<\/strong> \u00c7o\u011fu k\u00fc\u00e7\u00fck\/orta \u00f6l\u00e7ekli site i\u00e7in iyi denge. Hem spam\u2019i temizler, hem a\u015f\u0131r\u0131 agresif de\u011fildir.<\/li>\n<li><strong>3\u20134 aras\u0131:<\/strong> \u00c7ok spam alan ama nadiren kritik e\u2011posta ka\u00e7\u0131rmay\u0131 g\u00f6ze alabilen senaryolarda kullan\u0131labilir; yanl\u0131\u015f pozitif ihtimali artar.<\/li>\n<li><strong>7 ve \u00fczeri:<\/strong> Daha temkinli, d\u00fc\u015f\u00fck hassasiyet. \u0130lk a\u015famada g\u00f6zlem ama\u00e7l\u0131 tercih edilebilir.<\/li>\n<\/ul>\n<p>Pratikte DCHost taraf\u0131nda g\u00f6rd\u00fc\u011f\u00fcm\u00fcz iyi yakla\u015f\u0131m, \u00f6nce <strong>5<\/strong> ile ba\u015flamak, karantinaya (Spam Box) atmak, birka\u00e7 hafta log ve klas\u00f6rleri incelemek, ard\u0131ndan ihtiya\u00e7 varsa 4 veya 6 gibi daha uygun bir de\u011fere ayarlamakt\u0131r.<\/p>\n<h2><span id=\"SpamAssassin_Ayarlari_Beyaz_Liste_Kara_Liste_ve_Ozel_Kurallar\">SpamAssassin Ayarlar\u0131: Beyaz Liste, Kara Liste ve \u00d6zel Kurallar<\/span><\/h2>\n<p>SpamAssassin\u2019in g\u00fcc\u00fc, sadece varsay\u0131lan kurallar\u0131nda de\u011fil; sizin ekleyece\u011finiz <strong>beyaz liste (whitelist)<\/strong>, <strong>kara liste (blacklist)<\/strong> ve iste\u011fe g\u00f6re olu\u015fturulan \u00f6zel puanlama kurallar\u0131nda yatar.<\/p>\n<h3><span id=\"Beyaz_Liste_Whitelist_ile_Onemli_Gonderenleri_Koruma\">Beyaz Liste (Whitelist) ile \u00d6nemli G\u00f6nderenleri Koruma<\/span><\/h3>\n<p>Baz\u0131 g\u00f6ndericiler var ki, onlardan gelen e\u2011postalar\u0131n <em>asla<\/em> spam olarak i\u015faretlenmesini istemezsiniz: Bankan\u0131z, \u00f6deme sa\u011flay\u0131c\u0131n\u0131z, ERP sistemi, kritik SaaS uygulamalar\u0131 gibi.<\/p>\n<p>cPanel\u2019de SpamAssassin beyaz listesi i\u00e7in genellikle iki y\u00f6ntem kullan\u0131l\u0131r:<\/p>\n<ul>\n<li><strong>Kullan\u0131c\u0131 aray\u00fcz\u00fc \u00fczerinden:<\/strong> Baz\u0131 cPanel temalar\u0131nda SpamAssassin ekran\u0131nda \u201cWhitelist\u201d alan\u0131 bulunur; buraya <code>@alanadi.com<\/code> veya tam e\u2011posta adresi yazabilirsiniz.<\/li>\n<li><strong>\u00d6zel yap\u0131land\u0131rma dosyas\u0131:<\/strong> Geli\u015fmi\u015f kullan\u0131c\u0131lar, <code>.spamassassin\/user_prefs<\/code> dosyas\u0131nda <code>whitelist_from<\/code> direktifleriyle \u00e7al\u0131\u015fmay\u0131 tercih eder.<\/li>\n<\/ul>\n<p>\u00d6rnek kural:<\/p>\n<pre>whitelist_from  noreply@bankam.com\nwhitelist_from  *@odeme-saglayici.com<\/pre>\n<p>Bu sayede bu adreslerden gelen e\u2011postalar, puan alsa bile spam e\u015fik de\u011ferini ge\u00e7meyecek \u015fekilde avantajl\u0131 konuma gelir.<\/p>\n<h3><span id=\"Kara_Liste_Blacklist_ile_Surekli_Rahatsiz_Edenleri_Engelleme\">Kara Liste (Blacklist) ile S\u00fcrekli Rahats\u0131z Edenleri Engelleme<\/span><\/h3>\n<p>Her zaman SPF\/DKIM\/SPAM skoru ile yakalayamad\u0131\u011f\u0131n\u0131z, s\u00fcrekli domain veya IP de\u011fi\u015ftiren, ama ayn\u0131 t\u00fcrden alan adlar\u0131ndan gelen \u0131srarc\u0131 spam\u2019ler olabilir. Bu noktada <strong>SpamAssassin kara listesi<\/strong> devreye girer.<\/p>\n<p>\u00d6rnek kara liste kural\u0131:<\/p>\n<pre>blacklist_from  *@orneksuperspam.com\nblacklist_from  promosyon*@*.spamdomain.net<\/pre>\n<p>Bu adreslerden gelen e\u2011postalar ba\u015ftan \u00e7ok y\u00fcksek puanla i\u015faretlenir ve do\u011frudan spam kategorisine girer. Burada dikkat edilmesi gereken, m\u00fcmk\u00fcn oldu\u011funca <strong>genel alan adlar\u0131n\u0131 de\u011fil<\/strong>, ger\u00e7ekten spam g\u00f6nderdi\u011finden emin oldu\u011funuz kaynaklar\u0131 eklemenizdir; aksi halde me\u015fru g\u00f6ndericileri de yanl\u0131\u015fl\u0131kla engelleyebilirsiniz.<\/p>\n<h3><span id=\"Ozel_Puan_Kurallari_ile_Hassasiyeti_Ayarlama\">\u00d6zel Puan Kurallar\u0131 ile Hassasiyeti Ayarlama<\/span><\/h3>\n<p>\u00c7ok teknik ekiplere sahip projelerde, belirli SpamAssassin kurallar\u0131na verilen puan\u0131 ince ayar yapmak isteyebilirsiniz. \u00d6rne\u011fin:<\/p>\n<ul>\n<li>\u201cSPF_PASS\u201d i\u00e7in negatif (eksi) puan verip, SPF\u2019i ge\u00e7enlere daha fazla g\u00fcvenmek,<\/li>\n<li>\u201cHTML_IMAGE_ONLY_XX\u201d gibi sadece resim i\u00e7eren e\u2011postalara fazladan puan vererek daha agresif davranmak,<\/li>\n<li>T\u00fcrk\u00e7e karakter i\u00e7ermeyen ve \u00e7ok fazla link ta\u015f\u0131yan e\u2011postalarda ekstra puan vermek gibi stratejiler m\u00fcmk\u00fcnd\u00fcr.<\/li>\n<\/ul>\n<p>\u00d6rnek:<\/p>\n<pre>score HTML_IMAGE_ONLY_08 3.0\nscore SPF_PASS           -1.0<\/pre>\n<p>Bu seviye \u00f6zelle\u015ftirme, kontroll\u00fc yap\u0131lmal\u0131d\u0131r. \u00d6zellikle \u00e7ok alan ad\u0131n\u0131 tek bir sunucuda bar\u0131nd\u0131r\u0131yorsan\u0131z, global de\u011fi\u015fiklikler t\u00fcm m\u00fc\u015fterilerinizi etkiler; bu nedenle \u00f6nce test ortam\u0131nda veya s\u0131n\u0131rl\u0131 say\u0131da hesapta denemenizi \u00f6neririz.<\/p>\n<h2><span id=\"RBL_Real-time_Blackhole_List_Kara_Listeleri_Sunucu_Seviyesinde_Savunma\">RBL (Real-time Blackhole List) Kara Listeleri: Sunucu Seviyesinde Savunma<\/span><\/h2>\n<p>SpamAssassin mesaj bazl\u0131 analiz yaparken, <strong>RBL kara listeleri<\/strong> IP seviyesinde \u00e7al\u0131\u015f\u0131r. Bir IP adresi bilinen spam kaynaklar\u0131 listesine girmi\u015fse, daha SMTP oturumu a\u015famas\u0131nda o ba\u011flant\u0131y\u0131 reddedebilirsiniz. Bu hem sunucunuzun y\u00fck\u00fcn\u00fc azalt\u0131r hem de SpamAssassin\u2019in daha az mesajla u\u011fra\u015fmas\u0131n\u0131 sa\u011flar.<\/p>\n<h3><span id=\"RBL_Nedir_Nasil_Calisir\">RBL Nedir, Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/span><\/h3>\n<p>RBL\u2019ler, spam g\u00f6nderen IP\u2019lerin tutuldu\u011fu ger\u00e7ek zamanl\u0131 kara listelerdir. E\u2011posta sunucunuz, gelen her ba\u011flant\u0131 i\u00e7in bu IP\u2019nin belirli DNSBL\/RBL servislerinde listelenip listelenmedi\u011fini sorgular. E\u011fer listelenmi\u015fse, genelde iki yol izlenir:<\/p>\n<ul>\n<li>Ba\u011flant\u0131 SMTP oturumunda reddedilir (REJECT).<\/li>\n<li>Ba\u011flant\u0131 kabul edilir ama <em>ekstra spam puan\u0131<\/em> verilerek SpamAssassin\u2019e avantaj sa\u011flan\u0131r.<\/li>\n<\/ul>\n<p>cPanel taraf\u0131nda bu i\u015flemi <strong>Exim<\/strong> (varsay\u0131lan MTA) y\u00f6netir. RBL\u2019ler do\u011frudan Exim yap\u0131land\u0131rmas\u0131na veya WHM (root\/ reseller d\u00fczeyi) aray\u00fcz\u00fcne eklenir.<\/p>\n<h3><span id=\"cPanelWHMde_RBL_Kara_Listesi_Ekleme\">cPanel\/WHM\u2019de RBL Kara Listesi Ekleme<\/span><\/h3>\n<p>E\u011fer DCHost \u00fczerinde kendi <a href=\"https:\/\/www.dchost.com\/tr\/vps\">VPS<\/a> veya <a href=\"https:\/\/www.dchost.com\/tr\/fiziksel-sunucu\">dedicated sunucu<\/a>nuzda WHM eri\u015fiminiz varsa, RBL y\u00f6netimi genellikle \u015fu ad\u0131mlarla yap\u0131l\u0131r:<\/p>\n<ol>\n<li>WHM\u2019ye root olarak giri\u015f yap\u0131n.<\/li>\n<li><strong>Exim Configuration Manager<\/strong> men\u00fcs\u00fcne gidin.<\/li>\n<li><strong>RBLs<\/strong> veya benzer isimli sekmeyi a\u00e7\u0131n.<\/li>\n<li>\u00d6nerilen RBL servislerini etkinle\u015ftirin veya kendi kullanmak istedi\u011finiz DNSBL alan adlar\u0131n\u0131 ekleyin.<\/li>\n<\/ol>\n<p>Hangi RBL\u2019leri kullanaca\u011f\u0131n\u0131z kritik bir karard\u0131r. \u00c7ok agresif listeler yanl\u0131\u015f pozitifleri art\u0131rabilir; \u00e7ok gev\u015fek listeler ise spam\u2019i yeterince kesmez. Burada dengeyi, birka\u00e7 haftal\u0131k log analizine bakarak kurmak gerekir.<\/p>\n<h3><span id=\"RBL_ve_Yanlis_Pozitif_Riski\">RBL ve Yanl\u0131\u015f Pozitif Riski<\/span><\/h3>\n<p>Bir IP\u2019nin RBL\u2019de listelenmesinin her zaman \u201ctamamen k\u00f6t\u00fc niyetli\u201d oldu\u011fu anlam\u0131na gelmedi\u011fini unutmamak gerekir. Payla\u015f\u0131ml\u0131 ortamlar, yeni ta\u015f\u0131nm\u0131\u015f IP\u2019ler veya iptal edilip yeniden tahsis edilmi\u015f bloklar da yanl\u0131\u015fl\u0131kla kara listelere girebilir.<\/p>\n<p>Bu y\u00fczden RBL sonucuna g\u00f6re gelen e\u2011postalar\u0131 <strong>hemen reddetmek yerine<\/strong>, baz\u0131 senaryolarda sadece ekstra spam puan\u0131 vermek daha g\u00fcvenli bir strateji olabilir. B\u00f6ylece SpamAssassin i\u00e7erik ve DNS imzalar\u0131n\u0131 da kontrol eder, karar \u00e7ok boyutlu olur.<\/p>\n<p>IP itibar\u0131n\u0131n toparlanmas\u0131, gerekti\u011finde blacklist\u2019lerden \u00e7\u0131kma (delisting) s\u00fcre\u00e7leri hakk\u0131nda detayl\u0131 bilgi i\u00e7in <a href=\"https:\/\/www.dchost.com\/blog\/e-posta-itibarini-kurtarma-rehberi-blacklist-delisting-postmaster-araclari-ve-guvenli-ip-isitma-nasil-kurtarici-olur\/\">e\u2011posta itibar\u0131n\u0131 kurtarma rehberinde blacklist delisting ve IP \u0131s\u0131tma ad\u0131mlar\u0131n\u0131<\/a> ayr\u0131nt\u0131l\u0131 \u015fekilde anlatt\u0131k.<\/p>\n<h2><span id=\"Karantina_Spam_Box_Yonetimi_Silmek_Yerine_Guvenli_Sandiga_Kaldirmak\">Karantina (Spam Box) Y\u00f6netimi: Silmek Yerine G\u00fcvenli Sand\u0131\u011fa Kald\u0131rmak<\/span><\/h2>\n<p>SpamAssassin\u2019i devreye ald\u0131\u011f\u0131n\u0131zda, en kritik kararlardan biri \u015fudur: <strong>Spam\u2019i direkt silmek mi, yoksa karantinaya m\u0131 almak?<\/strong><\/p>\n<h3><span id=\"Spam_Box_Nedir\">Spam Box Nedir?<\/span><\/h3>\n<p>cPanel\u2019de <strong>Spam Box<\/strong>, spam olarak i\u015faretlenen e\u2011postalar\u0131n otomatik olarak ta\u015f\u0131nd\u0131\u011f\u0131 \u00f6zel bir IMAP klas\u00f6r\u00fcd\u00fcr. Genellikle posta kutusunda <code>Spam<\/code> veya <code>Junk<\/code> ad\u0131yla g\u00f6r\u00fcn\u00fcr. Bu yakla\u015f\u0131m\u0131n avantajlar\u0131:<\/p>\n<ul>\n<li>Yanl\u0131\u015fl\u0131kla spam\u2019e d\u00fc\u015fen me\u015fru e\u2011postalar\u0131 daha sonra kurtarabilirsiniz.<\/li>\n<li>Kullan\u0131c\u0131lar, periyodik olarak bu klas\u00f6r\u00fc inceleyerek filtrelerin <em>\u00e7ok agresif<\/em> olup olmad\u0131\u011f\u0131n\u0131 size geri bildirebilir.<\/li>\n<li>Bayes istatistikleri i\u00e7in e\u011fitim verisi olarak kullan\u0131labilir (geli\u015fmi\u015f kurulumlarda).<\/li>\n<\/ul>\n<h3><span id=\"cPanelde_Spam_Boxi_Etkinlestirme\">cPanel\u2019de Spam Box\u2019\u0131 Etkinle\u015ftirme<\/span><\/h3>\n<p>Spam Box\u2019\u0131 a\u00e7mak i\u00e7in:<\/p>\n<ol>\n<li>cPanel\u2019e giri\u015f yap\u0131n.<\/li>\n<li><strong>Spam Filters<\/strong> veya <strong>Apache SpamAssassin<\/strong> men\u00fcs\u00fcne gidin.<\/li>\n<li><strong>\u201cSpam Kutusunu Etkinle\u015ftir\u201d (Process New Emails and Mark Them as Spam: Move New Spam to a Separate Folder)<\/strong> benzeri se\u00e7ene\u011fi aktif edin.<\/li>\n<\/ol>\n<p>Bu ad\u0131mdan sonra e\u015fik de\u011ferinizi ge\u00e7en t\u00fcm e\u2011postalar ilgili posta hesab\u0131ndaki Spam\/Junk klas\u00f6r\u00fcne d\u00fc\u015fecektir.<\/p>\n<h3><span id=\"Otomatik_Temizleme_Stratejisi\">Otomatik Temizleme Stratejisi<\/span><\/h3>\n<p>Spam klas\u00f6r\u00fc kontrol edilmezse, zamanla binlerce mesaj birikir ve disk kotan\u0131z\u0131 doldurur. Bu nedenle, DCHost taraf\u0131nda m\u00fc\u015fterilere genellikle \u015fu pratik stratejiyi \u00f6neriyoruz:<\/p>\n<ul>\n<li>Spam klas\u00f6r\u00fc i\u00e7in otomatik silme s\u00fcresi belirlemek (\u00f6rne\u011fin 15 veya 30 g\u00fcn).<\/li>\n<li>IMAP istemcisinde (Outlook, Thunderbird, mobil uygulamalar) Spam klas\u00f6r\u00fcn\u00fcn g\u00f6r\u00fcn\u00fcr oldu\u011fundan emin olmak ve kullan\u0131c\u0131lara <em>\u201cayda bir g\u00f6z at\u0131n\u201d<\/em> demek.<\/li>\n<li>cPanel\u2019de <strong>Email Disk Usage<\/strong> arac\u0131n\u0131 kullanarak \u015fi\u015fen klas\u00f6rleri periyodik kontrol etmek.<\/li>\n<\/ul>\n<p>\u0130leri seviyede, kendi VPS\u2019inizde ek script\u2019ler veya <code>cron<\/code> g\u00f6revleri ile belirli klas\u00f6rlerdeki 60 g\u00fcnden eski mesajlar\u0131 otomatik temizleyebilirsiniz. Bu t\u00fcr otomasyonlar\u0131n sunucu taraf\u0131 altyap\u0131s\u0131na etkisi konusunda <a href=\"https:\/\/www.dchost.com\/blog\/3-2-1-yedekleme-stratejisi-neden-ise-yariyor-cpanel-plesk-ve-vpste-otomatik-yedekleri-nasil-kurarsin\/\">cPanel ve VPS\u2019te otomatik yedekleme stratejileri<\/a> yaz\u0131s\u0131nda da benzer mant\u0131\u011f\u0131 g\u00f6rebilirsiniz.<\/p>\n<h3><span id=\"Gercek_Bir_Senaryo_Ajans_Hesabinda_Kaybolan_Teklifler\">Ger\u00e7ek Bir Senaryo: Ajans Hesab\u0131nda Kaybolan Teklifler<\/span><\/h3>\n<p>Ajans m\u00fc\u015fterilerimizden birinde ya\u015fad\u0131\u011f\u0131m\u0131z tipik bir senaryo: SpamAssassin e\u015fi\u011fi 4\u2019e indirilmi\u015f, Spam Box kapal\u0131 ve \u201cspam\u2019i direkt sil\u201d se\u00e7ene\u011fi i\u015faretli. Sonu\u00e7: Ayl\u0131k binlerce spam mesaj\u0131 ger\u00e7ekten temizleniyor ama ayn\u0131 zamanda baz\u0131 yurtd\u0131\u015f\u0131 tedarik\u00e7ilerin teklif e\u2011postalar\u0131 da siliniyor, geri d\u00f6n\u00fc\u015f oranlar\u0131 d\u00fc\u015f\u00fcyor.<\/p>\n<p>\u00c7\u00f6z\u00fcm olarak:<\/p>\n<ul>\n<li>E\u015fik de\u011feri 5\u2019e y\u00fckselttik,<\/li>\n<li>Spam Box\u2019\u0131 etkinle\u015ftirdik,<\/li>\n<li>Belirli g\u00fcvenilir tedarik\u00e7ileri whitelist\u2019e ekledik,<\/li>\n<li>Spam klas\u00f6r\u00fcn\u00fc 30 g\u00fcnde bir otomatik temizleyecek bir s\u00fcre\u00e7 kurgulad\u0131k.<\/li>\n<\/ul>\n<p>\u0130ki hafta i\u00e7inde kaybolan teklif sorunu \u00e7\u00f6z\u00fcld\u00fc ve kullan\u0131c\u0131lar hala b\u00fcy\u00fck oranda spam\u2019den kurtulmu\u015f \u015fekilde \u00e7al\u0131\u015fmaya devam etti.<\/p>\n<h2><span id=\"Kullanici_ve_Global_Eposta_Filtreleriyle_Ince_Ayar\">Kullan\u0131c\u0131 ve Global E\u2011posta Filtreleriyle \u0130nce Ayar<\/span><\/h2>\n<p>SpamAssassin ve RBL\u2019ler <em>genel savunmay\u0131<\/em> kurarken, cPanel\u2019in <strong>E\u2011posta Filtreleri<\/strong> aray\u00fcz\u00fc kullan\u0131c\u0131 veya alan ad\u0131 baz\u0131nda \u00e7ok daha ince ayar yapman\u0131za izin verir.<\/p>\n<h3><span id=\"Global_Alan_Adi_Bazli_Eposta_Filtreleri\">Global (Alan Ad\u0131 Bazl\u0131) E\u2011posta Filtreleri<\/span><\/h3>\n<p>cPanel\u2019de <strong>Global Email Filters<\/strong> (veya <strong>Alan Ad\u0131 Filtreleri<\/strong>) men\u00fcs\u00fcne girdi\u011finizde, o domain alt\u0131ndaki t\u00fcm hesaplara uygulanacak kurallar tan\u0131mlayabilirsiniz. \u00d6rnekler:<\/p>\n<ul>\n<li>Konu sat\u0131r\u0131nda belirli bir kelime ge\u00e7en e\u2011postalar\u0131 do\u011frudan reddetmek.<\/li>\n<li>Belirli bir \u00fclke kodlu TLD\u2019den (.xyz, .top vb.) gelenleri ekstra klas\u00f6re ta\u015f\u0131mak.<\/li>\n<li>Belirli bir ba\u015fl\u0131k (header) de\u011feri ta\u015f\u0131yan uygulama loglar\u0131n\u0131 ayr\u0131 bir posta kutusuna y\u00f6nlendirmek.<\/li>\n<\/ul>\n<p>\u00d6rne\u011fin, konu sat\u0131r\u0131nda \u201ckredi kart\u0131 onay\u0131\u201d ge\u00e7en mesajlar\u0131 \u00f6zel bir klas\u00f6re ta\u015f\u0131mak i\u00e7in bir kural olu\u015fturabilirsiniz. Bu t\u00fcr filtreleri, hem spam azaltma hem de i\u015f ak\u0131\u015f\u0131 d\u00fczenleme i\u00e7in kullanmak m\u00fcmk\u00fcn.<\/p>\n<h3><span id=\"Kullanici_Bazli_Eposta_Filtreleri\">Kullan\u0131c\u0131 Bazl\u0131 E\u2011posta Filtreleri<\/span><\/h3>\n<p><strong>Email Filters<\/strong> men\u00fcs\u00fcnden, her e\u2011posta hesab\u0131 i\u00e7in ayr\u0131 kurallar tan\u0131mlanabilir. \u00d6zellikle y\u00f6netici hesaplar\u0131 veya yo\u011fun sat\u0131\u015f ekipleri i\u00e7in faydal\u0131d\u0131r. \u00d6rnek kullan\u0131m senaryolar\u0131:<\/p>\n<ul>\n<li>Belirli bir m\u00fc\u015fteriden gelen t\u00fcm e\u2011postalar\u0131 otomatik olarak \u201cVIP\u201d klas\u00f6r\u00fcne ta\u015f\u0131mak.<\/li>\n<li>Ek boyutu belirli bir limitten b\u00fcy\u00fck olan e\u2011postalar\u0131 farkl\u0131 bir hesaba kopyalamak.<\/li>\n<li>\u015e\u00fcpheli g\u00f6r\u00fcnen ama tamamen silmek istemedi\u011finiz baz\u0131 motifleri \u201cinceleme\u201d klas\u00f6r\u00fcne ta\u015f\u0131mak.<\/li>\n<\/ul>\n<p>Bu aray\u00fcz \u00fczerinden, SpamAssassin taraf\u0131ndan eklenen <code>X-Spam-Status<\/code> veya <code>X-Spam-Score<\/code> ba\u015fl\u0131klar\u0131na g\u00f6re de filtre olu\u015fturabilirsiniz. \u00d6rne\u011fin <code>X-Spam-Score<\/code> 10\u2019dan b\u00fcy\u00fckse, ba\u015fka bir karantina klas\u00f6r\u00fcne ta\u015f\u0131y\u0131p daha agresif inceleme yapabilirsiniz.<\/p>\n<h2><span id=\"SPF_DKIM_DMARC_ve_Spam_Filtreleri_Arasindaki_Iliski\">SPF, DKIM, DMARC ve Spam Filtreleri Aras\u0131ndaki \u0130li\u015fki<\/span><\/h2>\n<p>cPanel\u2019de ne kadar iyi SpamAssassin ve RBL ayar\u0131 yaparsan\u0131z yap\u0131n, kendi g\u00f6nderdi\u011finiz e\u2011postalar\u0131n kar\u015f\u0131 tarafta spam\u2019e d\u00fc\u015fmemesi i\u00e7in <strong>SPF, DKIM ve DMARC<\/strong> kay\u0131tlar\u0131n\u0131z\u0131 da sa\u011flam tutman\u0131z gerekir. Aksi halde siz de ba\u015fkalar\u0131n\u0131n spam filtrelerine yakalan\u0131rs\u0131n\u0131z.<\/p>\n<p>Bu DNS kay\u0131tlar\u0131n\u0131n d\u00fczg\u00fcn kurulumu ve etkileri hakk\u0131nda detayl\u0131 bir saha rehberi ar\u0131yorsan\u0131z, <a href=\"https:\/\/www.dchost.com\/blog\/ipv6-ile-e-posta-teslimi-nasil-rayina-oturur-ptr-helo-spf-ve-rbllerle-saha-rehberi\/\">IPv6 ile e\u2011posta teslimini PTR, HELO, SPF ve RBL\u2019lerle nas\u0131l ray\u0131na oturtaca\u011f\u0131m\u0131z\u0131 anlatt\u0131\u011f\u0131m\u0131z makalede<\/a> \u00e7ok say\u0131da pratik \u00f6rnek bulabilirsiniz.<\/p>\n<p>Ayr\u0131ca, e\u2011posta y\u00f6nlendirmelerinde SPF\/DMARC\u2019\u0131n neden k\u0131r\u0131ld\u0131\u011f\u0131n\u0131 ve SRS\/ARC gibi mekanizmalarla bu sorunun nas\u0131l \u00e7\u00f6z\u00fclece\u011fini merak ediyorsan\u0131z, <a href=\"https:\/\/www.dchost.com\/blog\/e-posta-yonlendirmede-spf-dmarc-neden-kiriliyor-srs-ve-arc-ile-nasil-tatli-tatli-onarirsin\/\">e\u2011posta y\u00f6nlendirmede SPF\/DMARC sorunlar\u0131n\u0131 anlatan rehberimize<\/a> mutlaka g\u00f6z at\u0131n. Bu bilgiler, spam filtreleriyle birlikte \u00e7al\u0131\u015ft\u0131\u011f\u0131nda \u00e7ok daha sa\u011flam bir e\u2011posta altyap\u0131s\u0131 kurman\u0131z\u0131 sa\u011flar.<\/p>\n<h2><span id=\"Gelismis_Guvenlik_Katmani_MTASTS_TLSRPT_ve_Eposta_Teslim_Edilebilirligi\">Geli\u015fmi\u015f G\u00fcvenlik Katman\u0131: MTA\u2011STS, TLS\u2011RPT ve E\u2011posta Teslim Edilebilirli\u011fi<\/span><\/h2>\n<p>Spam filtreleri istenmeyen postalar\u0131 engellerken, <strong>MTA\u2011STS<\/strong>, <strong>TLS\u2011RPT<\/strong> ve <strong>DANE<\/strong> gibi modern mekanizmalar e\u2011posta trafi\u011finizin \u015fifreli, g\u00fcvenli ve manip\u00fclasyona kar\u015f\u0131 dayan\u0131kl\u0131 olmas\u0131n\u0131 sa\u011flar. Bunlar spam filtresi de\u011fildir, fakat iyi yap\u0131land\u0131r\u0131ld\u0131\u011f\u0131nda e\u2011posta itibar\u0131n\u0131z ve teslim edilebilirli\u011finiz i\u00e7in olumlu sinyaller \u00fcretir.<\/p>\n<p>Bu konuyu daha derinlemesine incelemek isterseniz, <a href=\"https:\/\/www.dchost.com\/blog\/e-postada-mta-sts-tls-rpt-ve-dane-teslim-edilebilirligi-nasil-tatli-tatli-yukseltirsin\/\">MTA\u2011STS, TLS\u2011RPT ve DANE ile teslim edilebilirli\u011fi art\u0131rma rehberimizde<\/a> hem DNS yap\u0131land\u0131rmalar\u0131n\u0131 hem de pratik kurulum ad\u0131mlar\u0131n\u0131 detayl\u0131 \u015fekilde ele ald\u0131k.<\/p>\n<h2><span id=\"DCHost_Tarafinda_cPanel_Eposta_Altyapisini_Nasil_Kurguluyoruz\">DCHost Taraf\u0131nda cPanel E\u2011posta Altyap\u0131s\u0131n\u0131 Nas\u0131l Kurguluyoruz?<\/span><\/h2>\n<p>DCHost olarak cPanel bar\u0131nd\u0131rma, VPS ve dedicated sunucu hizmetlerimizde e\u2011posta altyap\u0131s\u0131n\u0131 kurarken genellikle \u015fu prensiplerle ilerliyoruz:<\/p>\n<ul>\n<li><strong>Varsay\u0131lan SpamAssassin e\u015fi\u011fi:<\/strong> 5 puan ve Spam Box a\u00e7\u0131k.<\/li>\n<li><strong>Temel ve g\u00fcvenilir RBL\u2019ler:<\/strong> Hem kaynak kullan\u0131m\u0131n\u0131 koruyan hem de yanl\u0131\u015f pozitif riskini makul seviyede tutan listeler.<\/li>\n<li><strong>DNS katman\u0131nda SPF, DKIM, DMARC:<\/strong> M\u00fcmk\u00fcn oldu\u011funca otomatik olu\u015fturulan ve test edilen kay\u0131tlar.<\/li>\n<li><strong>D\u00fczenli log ve rapor takibi:<\/strong> Gelen\/giden e\u2011postalar\u0131n istatistiksel analizi, \u015f\u00fcpheli art\u0131\u015flarda h\u0131zl\u0131 m\u00fcdahale.<\/li>\n<\/ul>\n<p>Daha kompleks ihtiya\u00e7larda, \u00f6rne\u011fin tamamen size ait bir mail sunucusu kurmak, Postfix\/Dovecot\/rspamd gibi bile\u015fenlerle ileri seviye bir mimari tasarlamak isterseniz, bunu da DCHost VPS veya dedicated sunucular \u00fczerinde kurgulay\u0131p i\u015fletmenize uygun politikalarla birle\u015ftirebiliyoruz.<\/p>\n<p>Hangi senaryoda payla\u015f\u0131ml\u0131 cPanel, hangi senaryoda kendi mail sunucunuzun do\u011fru tercih olaca\u011f\u0131 konusunda karars\u0131zsan\u0131z, <a href=\"https:\/\/www.dchost.com\/blog\/e-posta-hosting-secimi-kendi-sunucunuz-mu-paylasimli-hosting-mi-google-workspace-ve-microsoft-365-mi\/\">e\u2011posta hosting se\u00e7imi rehberimiz<\/a> size iyi bir \u00e7er\u00e7eve sunacakt\u0131r.<\/p>\n<h2><span id=\"Ozet_ve_Yol_Haritasi_cPanelde_Saglam_Bir_Spam_Savunmasi_Kurmak\">\u00d6zet ve Yol Haritas\u0131: cPanel\u2019de Sa\u011flam Bir Spam Savunmas\u0131 Kurmak<\/span><\/h2>\n<p>cPanel kullan\u0131yorsan\u0131z, elinizde asl\u0131nda olduk\u00e7a g\u00fc\u00e7l\u00fc bir spam savunma ara\u00e7 seti var: <strong>SpamAssassin<\/strong>, <strong>RBL kara listeleri<\/strong>, <strong>Spam Box karantina<\/strong> ve <strong>kullan\u0131c\u0131\/global filtreler<\/strong>. \u00d6nemli olan, bunlar\u0131 rastgele de\u011fil, bilin\u00e7li bir stratejiyle devreye almak.<\/p>\n<p>\u00d6nerdi\u011fimiz pratik yol haritas\u0131n\u0131 k\u0131saca \u00f6zetleyelim:<\/p>\n<ul>\n<li>SpamAssassin\u2019i etkinle\u015ftir, ba\u015flang\u0131\u00e7 e\u015fi\u011fini 5 olarak ayarla.<\/li>\n<li>Spam Box\u2019\u0131 a\u00e7, en az 2\u20134 haftal\u0131k bir g\u00f6zlem s\u00fcresi boyunca <em>silmek yerine karantinaya<\/em> al.<\/li>\n<li>G\u00fcvenilir g\u00f6ndericileri whitelist\u2019e, s\u00fcrekli rahats\u0131z edenleri dikkatle se\u00e7ilmi\u015f blacklist\u2019e ekle.<\/li>\n<li>RBL kara listelerini makul say\u0131da ve g\u00fcvenilir kaynaklardan se\u00e7; \u00f6nce log\u2019lar\u0131 izle, sonra daha agresif hale getir.<\/li>\n<li>SPF, DKIM, DMARC, rDNS gibi kritik DNS kay\u0131tlar\u0131n\u0131 sa\u011flam kur; gerekirse ilgili rehberlerimizden faydalan.<\/li>\n<li>Global ve kullan\u0131c\u0131 bazl\u0131 filtrelerle, \u00f6zellikle yo\u011fun gelen kutular\u0131n\u0131 ince ayarla.<\/li>\n<\/ul>\n<p>DCHost olarak, ister payla\u015f\u0131ml\u0131 cPanel hosting ister kendi VPS\/dedicated sunucunuz olsun, e\u2011posta taraf\u0131nda spam ile teslim edilebilirlik dengesini yakalaman\u0131z i\u00e7in mimari tasar\u0131mdan g\u00fcnl\u00fck operasyonel iyile\u015ftirmelere kadar size e\u015flik edebiliyoruz. Mevcut bir cPanel hesab\u0131n\u0131z varsa ve spam sorunlar\u0131n\u0131z kronik hale geldiyse, gelin birlikte log\u2019lara bakal\u0131m; SpamAssassin, RBL ve karantina ayarlar\u0131n\u0131 birka\u00e7 k\u00fc\u00e7\u00fck dokunu\u015fla nas\u0131l ray\u0131na oturtabilece\u011finizi birlikte planlayal\u0131m.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u0130&ccedil;indekiler1 cPanel\u2019de E\u2011posta Spam Filtreleme Neden Bu Kadar Kritik?2 cPanel\u2019de Spam Mimarisi: Hangi Bile\u015fen Ne \u0130\u015f Yapar?3 SpamAssassin Nedir, cPanel\u2019de Nas\u0131l \u00c7al\u0131\u015f\u0131r?3.1 SpamAssassin Puanlama Mant\u0131\u011f\u01313.2 cPanel\u2019de SpamAssassin\u2019i Etkinle\u015ftirme3.3 \u00d6nerilen Ba\u015flang\u0131\u00e7 E\u015fik De\u011feri (Score)4 SpamAssassin Ayarlar\u0131: Beyaz Liste, Kara Liste ve \u00d6zel Kurallar4.1 Beyaz Liste (Whitelist) ile \u00d6nemli G\u00f6nderenleri Koruma4.2 Kara Liste (Blacklist) ile S\u00fcrekli Rahats\u0131z [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2297,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-2296","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\/2296","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=2296"}],"version-history":[{"count":0,"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/posts\/2296\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/media\/2297"}],"wp:attachment":[{"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/media?parent=2296"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/categories?post=2296"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dchost.com\/blog\/wp-json\/wp\/v2\/tags?post=2296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}