[{"id":119,"title":"*Microsoft E-posta G\u00fcvenlik G\u00fcncellemesi: SPF, DKIM ve DMARC Art\u0131k Zorunlu!","content":"Microsoft, **Outlook, Live ve Hotmail** hesaplar\u0131na g\u00f6nderilen epostalar\u0131n g\u00fcvenli\u011fini art\u0131rmak i\u00e7in \u00f6nemli bir ad\u0131m at\u0131yor. **5 May\u0131s 2025**'ten itibaren, **g\u00fcnde 5.000\u2019den fazla eposta g\u00f6nderen g\u00f6ndericilerin SPF, DKIM ve DMARC kimlik do\u011frulama protokollerini uygulamas\u0131 zorunlu hale gelecek.** Uyum sa\u011flamayan epostalar, ba\u015flang\u0131\u00e7ta **spam klas\u00f6r\u00fcne d\u00fc\u015fecek**, zamanla ise **tamamen reddedilecek.** Bu de\u011fi\u015fiklik, **phishing (oltalama), spoofing (sahtecilik) ve spam sald\u0131r\u0131lar\u0131n\u0131** azaltmay\u0131 hedefliyor. Peki bu ne anlama geliyor ve eposta g\u00f6nderenler ne yapmal\u0131?   **Microsoft\u2019un Yeni Eposta Kimlik Do\u011frulama Kurallar\u0131** **1. SPF (Sender Policy Framework) \u2013 G\u00f6nderen Politikas\u0131 \u00c7er\u00e7evesi** **Ne i\u015fe yarar?** Epostan\u0131n, yetkili bir sunucudan g\u00f6nderildi\u011fini do\u011frular. **Nas\u0131l \u00e7al\u0131\u015f\u0131r?** DNS kay\u0131tlar\u0131n\u0131zda, eposta g\u00f6nderebilecek IP adreslerini belirtirsiniz. **\u00d6rnek SPF Kayd\u0131:** v=spf1 include:_spf.google.com ~all **2. DKIM (DomainKeys Identified Mail) \u2013 Etki Alan\u0131 Anahtarl\u0131 Eposta Do\u011frulama** **Ne i\u015fe yarar?** Epostan\u0131n yolda de\u011fi\u015ftirilmedi\u011fini ve ger\u00e7ekten sizin domain\u2019inizden \u00e7\u0131kt\u0131\u011f\u0131n\u0131 kan\u0131tlar. **Nas\u0131l \u00e7al\u0131\u015f\u0131r?** G\u00f6nderdi\u011finiz epostalara dijital bir imza ekler, al\u0131c\u0131 sunucu bu imzay\u0131 kontrol eder. **\u00d6rnek DKIM Kayd\u0131:** v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC... **3. DMARC (Domainbased Message Authentication, Reporting & Conformance) \u2013 Etki Alan\u0131 Tabanl\u0131 Mesaj Do\u011frulama** **Ne i\u015fe yarar?** SPF ve DKIM\u2019in do\u011fru ayarland\u0131\u011f\u0131n\u0131 kontrol eder ve uyumsuz epostalara ne yap\u0131laca\u011f\u0131n\u0131 belirler. **Minimum Gereklilik:** `p=none` (sadece raporlama yapar, epostay\u0131 engellemez) **\u00d6nerilen Ayarlar:** v=DMARC1; p=quarantine; rua=mailto:rapor@firmaniz.com   **Bu De\u011fi\u015fiklik Kimleri Etkileyecek?** \u2714 **B\u00fcy\u00fck \u00f6l\u00e7ekli eposta pazarlamac\u0131lar\u0131** (Newsletter g\u00f6nderenler) \u2714 **Kurumsal eposta sunucular\u0131n\u0131 kullanan \u015firketler** \u2714 **Eticaret siteleri (sipari\u015f onay\u0131, faturaland\u0131rma epostalar\u0131)** \u2714 **Otomatik eposta g\u00f6nderen SaaS uygulamalar\u0131** **Uyum sa\u011flamayan g\u00f6nderenler ne ya\u015fayacak?** **5 May\u0131s 2025\u2019ten itibaren:** Uyumsuz epostalar **Outlook spam klas\u00f6r\u00fcne** d\u00fc\u015fecek. **Gelecek a\u015famada (tarih belirsiz):** Microsoft, uyumsuz epostalar\u0131 **tamamen reddedecek.**   **Ne Yapmal\u0131s\u0131n\u0131z?** 1. **SPF, DKIM ve DMARC kay\u0131tlar\u0131n\u0131z\u0131 kontrol edin** (https:\/\/mxtoolbox.com\/) veya (https:\/\/www.dmarcanalyzer.com\/) gibi ara\u00e7larla test edin. 2. **DNS ayarlar\u0131n\u0131z\u0131 g\u00fcncelleyin** Hosting veya domain sa\u011flay\u0131c\u0131n\u0131z\u0131n DNS panelinden bu kay\u0131tlar\u0131 ekleyin. 3. **DMARC raporlar\u0131n\u0131 aktifle\u015ftirin** `p=none` ile ba\u015flay\u0131p, sorun yoksa `p=quarantine` veya `p=reject`\u2019e ge\u00e7in. 4. **Eposta servis sa\u011flay\u0131c\u0131n\u0131zla ileti\u015fime ge\u00e7in** Mailchimp, SendGrid, Amazon SES gibi platformlar SPF\/DKIM deste\u011fi sunuyor.   **Sonu\u00e7: \u015eimdi Harekete Ge\u00e7in!** Microsoft\u2019un bu yeni politikas\u0131, **eposta g\u00fcvenli\u011fini art\u0131rmak** i\u00e7in \u00f6nemli bir ad\u0131m. Uyum sa\u011flamazsan\u0131z, epostalar\u0131n\u0131z\u0131n **teslim edilmemesi** veya **spam\u2019e d\u00fc\u015fme riski** var. **Hemen SPF, DKIM ve DMARC ayarlar\u0131n\u0131z\u0131 kontrol edin ve May\u0131s 2025\u2019e haz\u0131rl\u0131kl\u0131 olun!** \ud83d\udccc **Ek Kaynaklar:** (https:\/\/techcommunity.microsoft.com\/) (https:\/\/dmarc.org\/) (https:\/\/mxtoolbox.com\/) **EmailSecurity Microsoft SPF DKIM DMARC OutlookUpdate**","excerpt":"Microsoft, **Outlook, Live ve Hotmail** hesaplar\u0131na g\u00f6nderilen epostalar\u0131n g\u00fcvenli\u011fini art\u0131rmak i\u00e7in \u00f6nemli bir ad\u0131m at\u0131yor. **5 May\u0131s...","created_at":"2025-04-14 01:31:48","updated_at":"2026-09-05 10:30:48","category_id":6,"view_count":649,"reading_time":3,"status":"published","editor_choice":0,"is_editor_choice":0,"published_at":"2025-04-14 01:31:48","featured_image":"resimyok.jpg","slug":"microsoft-e-posta-guvenlik-guncellemesi-spf-dkim-ve-dmarc-artik-zorunlu","category_name":"Sistem","category_slug":"sistem","category_color":"#3b82f6"}]