{"id":588,"date":"2025-09-10T16:16:02","date_gmt":"2025-09-10T13:16:02","guid":{"rendered":"https:\/\/destek.narhost.com\/?p=588"},"modified":"2026-09-11T19:23:24","modified_gmt":"2026-09-11T16:23:24","slug":"postfix-552-5-3-4-message-size-exceeds-fixed-limit-hatasi-nasil-cozulur","status":"publish","type":"post","link":"https:\/\/narhost.com\/destek\/postfix-552-5-3-4-message-size-exceeds-fixed-limit-hatasi-nasil-cozulur\/","title":{"rendered":"Postfix 552 5.3.4 Message Size Exceeds Fixed Limit Hatas\u0131 Nas\u0131l \u00c7\u00f6z\u00fcl\u00fcr?"},"content":{"rendered":"

Postfix mail sunucunuzda “552 5.3.4 Message size exceeds fixed limit” hatas\u0131 al\u0131yorsan\u0131z, bu durum g\u00f6nderilen e-postan\u0131n boyutunun sunucuda belirlenen maksimum s\u0131n\u0131r\u0131 a\u015ft\u0131\u011f\u0131 anlam\u0131na gelir.<\/p>\n

Narhost olarak bu sorunu \u00e7\u00f6zmeniz i\u00e7in a\u015fa\u011f\u0131daki ad\u0131mlar\u0131 uygulaman\u0131z\u0131 \u00f6neriyoruz:<\/p>\n

    \n
  1. \n

    Postfix yap\u0131land\u0131rma dosyas\u0131n\u0131 a\u00e7\u0131n:<\/strong><\/p>\n<\/li>\n<\/ol>\n

    nano \/etc\/postfix\/main.cf\r\n<\/code><\/pre>\n
      \n
    1. \n
      A\u015fa\u011f\u0131daki sat\u0131r\u0131 dosyan\u0131n uygun bir yerine ekleyin veya mevcutsa g\u00fcncelleyin:<\/strong><\/p>\n<\/li>\n<\/ol>\n
      message_size_limit = 52428800\r\n<\/code><\/pre>\n
      Bu de\u011fer 50MB\u2019a (50 * 1024 * 1024 byte) kar\u015f\u0131l\u0131k gelir.
      NOT:<\/strong> E\u011fer bu limiti tamamen kald\u0131rmak isterseniz, de\u011feri 0<\/code> yapabilirsiniz; ancak bu durumda mail boyutlar\u0131na herhangi bir s\u0131n\u0131rlama getirilmez. Bu y\u00fczden dikkatli kullanman\u0131z\u0131 \u00f6neririz.<\/p>\n
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      1. \n
        Yap\u0131land\u0131rma de\u011fi\u015fikliklerini kaydedip \u00e7\u0131k\u0131n, ard\u0131ndan Postfix servisini yeniden ba\u015flat\u0131n:<\/strong><\/p>\n<\/li>\n<\/ol>\n
        systemctl restart postfix\r\n<\/code><\/pre>\n
        Bu i\u015flemden sonra 50MB\u2019a kadar olan e-postalar\u0131n\u0131z sorunsuz \u015fekilde g\u00f6nderilebilecektir.<\/p>\n","protected":false},"excerpt":{"rendered":"
        Postfix mail sunucunuzda “552 5.3.4 Message size exceeds fixed limit” hatas\u0131 al\u0131yorsan\u0131z, bu durum g\u00f6nderilen e-postan\u0131n boyutunun sunucuda belirlenen maksimum s\u0131n\u0131r\u0131 a\u015ft\u0131\u011f\u0131 anlam\u0131na gelir.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,4],"tags":[26,48,67],"class_list":["post-588","post","type-post","status-publish","format-standard","hentry","category-kurumsal-hosting","category-e-posta","tag-e-posta","tag-mail","tag-postfix"],"meta_box":[],"_links":{"self":[{"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/posts\/588","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/comments?post=588"}],"version-history":[{"count":4,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/posts\/588\/revisions"}],"predecessor-version":[{"id":1524,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/posts\/588\/revisions\/1524"}],"wp:attachment":[{"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/media?parent=588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/categories?post=588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/narhost.com\/destek\/wp-json\/wp\/v2\/tags?post=588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}