{"id":495,"date":"2021-08-31T23:59:55","date_gmt":"2021-08-31T20:59:55","guid":{"rendered":"https:\/\/www.yunuskaytan.com\/?p=495"},"modified":"2021-08-31T23:59:58","modified_gmt":"2021-08-31T20:59:58","slug":"mail-sunucunuzun-guvenligini-nasil-saglariz","status":"publish","type":"post","link":"https:\/\/www.yunuskaytan.com\/en\/yk\/mail-sunucunuzun-guvenligini-nasil-saglariz\/","title":{"rendered":"MA\u0130L SUNUCUNUZUN G\u00dcVENL\u0130\u011e\u0130N\u0130 nas\u0131l sa\u011flar\u0131z?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Kullan\u0131c\u0131 eri\u015fimini kontrol alt\u0131nda tutabilmek ad\u0131na SMTP do\u011frulamas\u0131 edinmeliyiz. SMTP sunucusu ile beraber mevcut ba\u011flant\u0131 say\u0131s\u0131 s\u0131n\u0131rland\u0131r\u0131lmal\u0131d\u0131r.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><br>Fake mail engeli i\u00e7in reverse DNS kullan\u0131lmal\u0131r. Neredeyse t\u00fcm sistemlerde gelen mesaj\u0131 kabul etmeden hemen \u00f6nce g\u00f6ndericinin mail varl\u0131\u011f\u0131n\u0131 do\u011frulayabilmek ad\u0131na DNS search sistemi aktiftir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Reverse DNS T\u00fcrk\u00e7esi ile Ters DNS&#8217;dir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><br>Art niyetli mailler i\u00e7in DNSBL sunucular\u0131n\u0131 kullan\u0131nMail sunucular\u0131nda koruma sa\u011flayabilmek ad\u0131na bir di\u011fer \u00f6nemli i\u015flem de DNS yap\u0131l\u0131 kara liste edinmektir.IP adresinin ya da kullan\u0131c\u0131n\u0131n bilinirli\u011fini kontrol eder ve bu da ciddi derecede spam maillerde d\u00fc\u015f\u00fc\u015fe neden olur.Bu i\u015flemi ger\u00e7ekle\u015ftirmek ve azami miktarda DNSBL sunucusunu kullanman\u0131z\u0131 tavsiye ederim.Bu sayede istenmeyen maillerden ciddi oranda kurtulacaks\u0131n\u0131z.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fake kaynaklar\u0131 arkan\u0131zda b\u0131rakmak ad\u0131na SPF kullan\u0131n . SPF \/ Sender Policy Framework, T\u00fcrk\u00e7esi ile G\u00f6nderen Politika \u00c7er\u00e7evesi, fake kullan\u0131c\u0131lar\u0131 ve onlar\u0131n adreslerini arkan\u0131zda b\u0131rakman\u0131z i\u00e7in s\u0131k\u00e7a ba\u015fvurulan bir tekniktir. SPF yoklamas\u0131, ileten MTA ve iletenin etki alan\u0131 ad\u0131 i\u00e7in mail ula\u015ft\u0131rmas\u0131na onay verir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mail sunucusunda SPF etkinle\u015ftirmek, DNS Mail Exchange kayd\u0131n\u0131n i\u015fleme ba\u015flayarak gelen, giden mailler \u00fczerinde g\u00fcvenlik i\u015flemi yapmas\u0131n\u0131 sa\u011flar.Gelen maillerin i\u00e7eriklerini do\u011frulayabilmek ad\u0131na SURBL&#8217;yi etkinle\u015ftirmek.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Spam URI Ger\u00e7ek Zamanl\u0131 Blok Listeleri, gelen bir maildeki ge\u00e7ersiz say\u0131labilecek ya da art niyetli link kontrol\u00fc yaparak istenmeyecek tarzdaki mailleri belirler.<br>Spam al\u0131mlar\u0131n\u0131 durdurmak i\u00e7in yerel bir kara liste edinin.<\/p>","protected":false},"excerpt":{"rendered":"<p>Kullan\u0131c\u0131 eri\u015fimini kontrol alt\u0131nda tutabilmek ad\u0131na SMTP do\u011frulamas\u0131 edinmeliyiz. SMTP sunucusu ile beraber mevcut ba\u011flant\u0131 say\u0131s\u0131 s\u0131n\u0131rland\u0131r\u0131lmal\u0131d\u0131r. Fake mail engeli i\u00e7in reverse DNS kullan\u0131lmal\u0131r. Neredeyse t\u00fcm sistemlerde gelen\u2026<\/p>","protected":false},"author":1,"featured_media":440,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-495","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/posts\/495","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/comments?post=495"}],"version-history":[{"count":1,"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/posts\/495\/revisions"}],"predecessor-version":[{"id":496,"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/posts\/495\/revisions\/496"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/media\/440"}],"wp:attachment":[{"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/media?parent=495"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/categories?post=495"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yunuskaytan.com\/en\/wp-json\/wp\/v2\/tags?post=495"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}