{"id":34444,"date":"2025-11-16T18:41:39","date_gmt":"2025-11-16T15:41:39","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/?p=34444"},"modified":"2025-11-16T18:41:39","modified_gmt":"2025-11-16T15:41:39","slug":"postfix-ve-dovecot-ile-kendi-e-posta-sunucunuzu-kurma-rehberi","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/postfix-ve-dovecot-ile-kendi-e-posta-sunucunuzu-kurma-rehberi\/","title":{"rendered":"Postfix ve Dovecot ile Kendi E-posta Sunucunuzu Kurma Rehberi"},"content":{"rendered":"

<\/p>\n

Postfix ve Dovecot ile Kendi E-posta Sunucunuzu Kurma Rehberi<\/h2>\n

Giri\u015f<\/h3>\n

Kendi e-posta sunucunuzu kurmak, dijital ba\u011f\u0131ms\u0131zl\u0131\u011f\u0131n\u0131z\u0131 art\u0131rman\u0131n, gizlili\u011finizi koruman\u0131n ve e-posta ak\u0131\u015f\u0131n\u0131z \u00fczerinde tam kontrol sahibi olman\u0131n g\u00fc\u00e7l\u00fc bir yoludur. Bu rehberde, Linux tabanl\u0131 bir sunucu \u00fczerinde Postfix ve Dovecot kullanarak g\u00fcvenilir ve i\u015flevsel bir e-posta sunucusu nas\u0131l kuraca\u011f\u0131n\u0131z\u0131 ad\u0131m ad\u0131m \u00f6\u011freneceksiniz. Postfix, e-postalar\u0131 g\u00f6ndermek i\u00e7in kullan\u0131lan g\u00fc\u00e7l\u00fc ve esnek bir Mail Transfer Agent (MTA) iken, Dovecot kullan\u0131c\u0131lar\u0131n e-postalar\u0131na IMAP veya POP3 protokolleri arac\u0131l\u0131\u011f\u0131yla eri\u015fmelerini sa\u011flayan bir Mail Delivery Agent (MDA) ve IMAP\/POP3 sunucusudur.<\/p>\n

Bu rehber, Ubuntu veya Debian tabanl\u0131 sistemler i\u00e7in haz\u0131rlanm\u0131\u015ft\u0131r ve temel Linux komut bilgisine, bir alan ad\u0131na (domain name) ve bu alan ad\u0131n\u0131n DNS kay\u0131tlar\u0131n\u0131 y\u00f6netme yetene\u011fine sahip oldu\u011funuzu varsaymaktad\u0131r. Kendi e-posta sunucunuzu kurmak karma\u015f\u0131k bir s\u00fcre\u00e7 olabilir, ancak do\u011fru ad\u0131mlarla ilerledi\u011finizde ba\u015far\u0131l\u0131 bir kurulum ger\u00e7ekle\u015ftirebilirsiniz.<\/p>\n

1. \u00d6n Haz\u0131rl\u0131klar ve Sistem Yap\u0131land\u0131rmas\u0131<\/h3>\n

E-posta sunucusu kurulumuna ba\u015flamadan \u00f6nce sisteminizi haz\u0131rlamak ve temel yap\u0131land\u0131rmalar\u0131 yapmak \u00f6nemlidir.<\/p>\n

1.1. Sistem G\u00fcncelleme ve Hostname Ayar\u0131<\/h4>\n

Sunucunuzun g\u00fcncel oldu\u011fundan emin olun ve bir hostname belirleyin. Hostname, e-posta sunucunuzun kendini tan\u0131taca\u011f\u0131 add\u0131r ve genellikle alan ad\u0131n\u0131z\u0131n bir alt alan ad\u0131 (\u00f6rne\u011fin, mail.alanadiniz.com<\/code>) olarak ayarlan\u0131r.<\/p>\n

sudo apt update\nsudo apt upgrade -y\nsudo hostnamectl set-hostname mail.alanadiniz.com\necho \"127.0.0.1 mail.alanadiniz.com mail localhost\" | sudo tee -a \/etc\/hosts\necho \"::1 mail.alanadiniz.com mail localhost\" | sudo tee -a \/etc\/hosts\n<\/code><\/pre>\n
alanadiniz.com<\/code> yerine kendi alan ad\u0131n\u0131z\u0131 kullanmay\u0131 unutmay\u0131n.<\/p>\n
1.2. DNS Kay\u0131tlar\u0131<\/h4>\n
E-posta sunucunuzun d\u00fczg\u00fcn \u00e7al\u0131\u015fmas\u0131 i\u00e7in DNS kay\u0131tlar\u0131n\u0131z\u0131n do\u011fru yap\u0131land\u0131r\u0131lmas\u0131 hayati \u00f6neme sahiptir. A\u015fa\u011f\u0131daki kay\u0131tlar\u0131 alan ad\u0131n\u0131z\u0131n DNS y\u00f6netim panelinden eklemelisiniz:<\/p>\n
    \n
  • A Kayd\u0131:<\/strong> E-posta sunucunuzun hostname’ini (\u00f6rne\u011fin, mail.alanadiniz.com<\/code>) sunucunuzun genel IP adresine i\u015faret eder.<\/li>\n
  • MX Kayd\u0131:<\/strong> Alan ad\u0131n\u0131z i\u00e7in hangi sunucunun e-posta almaktan sorumlu oldu\u011funu belirtir. Genellikle mail.alanadiniz.com<\/code> adresine i\u015faret eder ve bir \u00f6ncelik de\u011feri (\u00f6rn. 10) ile birlikte gelir.<\/li>\n
  • SPF Kayd\u0131 (TXT):<\/strong> Hangi sunucular\u0131n sizin ad\u0131n\u0131za e-posta g\u00f6ndermeye yetkili oldu\u011funu belirtir. Bu, spam g\u00f6nderimini engellemeye yard\u0131mc\u0131 olur. \u00d6rnek: v=spf1 mx a ip4:SUNUCU_IP_ADRESI -all<\/code><\/li>\n
  • DKIM (TXT):<\/strong> E-postalar\u0131n g\u00f6nderici taraf\u0131ndan imzalanmas\u0131n\u0131 sa\u011flayarak kimlik do\u011frulamas\u0131n\u0131 yapar. Genellikle bir alt alan ad\u0131 (\u00f6rn. default._domainkey<\/code>) \u00fczerinden yay\u0131mlanan uzun bir anahtard\u0131r. DKIM kurulumu bu rehberin kapsam\u0131 d\u0131\u015f\u0131nda olmakla birlikte, bir posta sunucusunun g\u00fcvenilirli\u011fi i\u00e7in olmazsa olmazlardand\u0131r.<\/li>\n
  • DMARC (TXT):<\/strong> SPF ve DKIM politikalar\u0131n\u0131z\u0131n nas\u0131l uygulanaca\u011f\u0131n\u0131 ve ba\u015far\u0131s\u0131z e-postalar i\u00e7in raporlar\u0131n nereye g\u00f6nderilece\u011fini belirtir. \u00d6rnek: v=DMARC1; p=quarantine; fo=1; ruf=mailto:dmarc@alanadiniz.com; rua=mailto:dmarc@alanadiniz.com<\/code><\/li>\n<\/ul>\n
    1.3. G\u00fcvenlik Duvar\u0131 (UFW) Ayarlar\u0131<\/h4>\n
    Sunucunuzun g\u00fcvenlik duvar\u0131n\u0131 yap\u0131land\u0131rarak sadece gerekli portlar\u0131 d\u0131\u015far\u0131ya a\u00e7\u0131n. E-posta hizmetleri i\u00e7in standart portlar \u015funlard\u0131r:<\/p>\n
      \n
    • 25 (SMTP):<\/strong> E-posta g\u00f6nderimi (di\u011fer sunucularla ileti\u015fim).<\/li>\n
    • 587 (Submission):<\/strong> Kullan\u0131c\u0131lar\u0131n e-posta g\u00f6ndermesi i\u00e7in g\u00fcvenli port (STARTTLS).<\/li>\n
    • 465 (SMTPS):<\/strong> Kullan\u0131c\u0131lar\u0131n e-posta g\u00f6ndermesi i\u00e7in g\u00fcvenli port (SSL\/TLS).<\/li>\n
    • 143 (IMAP):<\/strong> E-postalara eri\u015fim (STARTTLS).<\/li>\n
    • 993 (IMAPS):<\/strong> E-postalara g\u00fcvenli eri\u015fim (SSL\/TLS).<\/li>\n
    • 110 (POP3):<\/strong> E-postalara eri\u015fim (STARTTLS).<\/li>\n
    • 995 (POP3S):<\/strong> E-postalara g\u00fcvenli eri\u015fim (SSL\/TLS).<\/li>\n<\/ul>\n
      sudo ufw allow 25\/tcp\nsudo ufw allow 587\/tcp\nsudo ufw allow 465\/tcp\nsudo ufw allow 143\/tcp\nsudo ufw allow 993\/tcp\nsudo ufw allow 110\/tcp\nsudo ufw allow 995\/tcp\nsudo ufw enable\nsudo ufw status\n<\/code><\/pre>\n
      2. Postfix Kurulumu ve Yap\u0131land\u0131rmas\u0131<\/h3>\n
      Postfix, e-postalar\u0131 g\u00f6ndermek ve almak i\u00e7in kullan\u0131lan temel MTA’d\u0131r.<\/p>\n
      2.1. Postfix Kurulumu<\/h4>\n
      sudo apt install postfix -y\n<\/code><\/pre>\n
      Kurulum s\u0131ras\u0131nda bir yap\u0131land\u0131rma ekran\u0131 gelecektir:<\/p>\n
        \n
      • General type of mail configuration:<\/strong> Internet Site<\/code><\/li>\n
      • System mail name:<\/strong> alanadiniz.com<\/code> (kendi alan ad\u0131n\u0131z)<\/li>\n
      • Root and postmaster mail recipient:<\/strong> Bo\u015f b\u0131rak\u0131n veya kendi kullan\u0131c\u0131 ad\u0131n\u0131z\u0131 girin.<\/li>\n
      • Other destinations to accept mail for:<\/strong> $myhostname, alanadiniz.com, mail.alanadiniz.com, localhost.alanadiniz.com, localhost<\/code><\/li>\n
      • Force synchronous updates on mail queue:<\/strong> No<\/code><\/li>\n
      • Local networks:<\/strong> 127.0.0.0\/8 [::ffff:127.0.0.0]\/104 [::1]\/128<\/code><\/li>\n
      • Mailbox size limit:<\/strong> 0<\/code> (limitsiz)<\/li>\n
      • Local address extension character:<\/strong> +<\/code><\/li>\n
      • Internet protocols to use:<\/strong> all<\/code><\/li>\n<\/ul>\n
        2.2. Postfix main.cf Yap\u0131land\u0131rmas\u0131<\/h4>\n
        Postfix’in ana yap\u0131land\u0131rma dosyas\u0131 \/etc\/postfix\/main.cf<\/code>‘dir. Bu dosyay\u0131 d\u00fczenleyerek sunucunuzun davran\u0131\u015f\u0131n\u0131 \u00f6zelle\u015ftirece\u011fiz.<\/p>\n
        sudo nano \/etc\/postfix\/main.cf\n<\/code><\/pre>\n
        A\u015fa\u011f\u0131daki sat\u0131rlar\u0131 kontrol edin veya ekleyin\/d\u00fczenleyin (alanadiniz.com<\/code> yerine kendi alan ad\u0131n\u0131z\u0131 kullan\u0131n):<\/p>\n
        # Temel yap\u0131land\u0131rma\nmyhostname = mail.alanadiniz.com\nmydomain = alanadiniz.com\nmyorigin = $mydomain\ninet_interfaces = all\ninet_protocols = all\nmydestination = $myhostname, $mydomain, localhost.$mydomain, localhost\n\n
        E-posta kutusu format\u0131 (Maildir kullanaca\u011f\u0131z)<\/h2>\nhome_mailbox = Maildir\/\n\n
        Postfix'in e-posta alaca\u011f\u0131 a\u011flar<\/h2>\nmynetworks = 127.0.0.0\/8 [::ffff:127.0.0.0]\/104 [::1]\/128\n\n
        SMTP kimlik do\u011frulama ayarlar\u0131 (Dovecot ile entegrasyon i\u00e7in)<\/h2>\nsmtpd_sasl_type = dovecot\nsmtpd_sasl_path = private\/auth\nsmtpd_sasl_auth_enable = yes\nsmtpd_sasl_security_options = noanonymous\nsmtpd_sasl_local_domain = $myhostname\nsmtpd_recipient_restrictions =\n    permit_mynetworks\n    permit_sasl_authenticated\n    reject_unauth_destination\n\n
        TLS\/SSL ayarlar\u0131 (Sonraki b\u00f6l\u00fcmde Let's Encrypt sertifikalar\u0131 ile g\u00fcncellenecek)<\/h2>\nsmtpd_tls_cert_file = \/etc\/ssl\/certs\/ssl-cert-snakeoil.pem\nsmtpd_tls_key_file = \/etc\/ssl\/private\/ssl-cert-snakeoil.key\nsmtpd_use_tls = yes\nsmtpd_tls_session_cache_database = btree:${data_directory}\/smtpd_scache\nsmtp_tls_session_cache_database = btree:${data_directory}\/smtp_scache\nsmtpd_tls_security_level = may\n\n
        Submission port (587) i\u00e7in ayarlar<\/h2>\nsubmission_port = 587\nsmtpd_tls_wrappermode = no\nsmtpd_sasl_auth_enable = yes\nsmtpd_client_restrictions = permit_sasl_authenticated,reject\nsmtpd_relay_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination\n\n
        SMTPS port (465) i\u00e7in ayarlar (master.cf'de etkinle\u015ftirilecek)<\/h2>\n#smtps_port = 465\n#smtpd_tls_wrappermode = yes\n#smtpd_sasl_auth_enable = yes\n#smtpd_client_restrictions = permit_sasl_authenticated,reject\n#smtpd_relay_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination\n<\/code><\/pre>\n
        \u015eimdilik varsay\u0131lan SSL sertifikalar\u0131n\u0131 kullanaca\u011f\u0131z. Daha sonra Let’s Encrypt ile ger\u00e7ek sertifikalar\u0131 yap\u0131land\u0131raca\u011f\u0131z. smtpd_tls_security_level = may<\/code> ayar\u0131, TLS kullan\u0131m\u0131n\u0131 iste\u011fe ba\u011fl\u0131 yapar. \u00dcretim ortam\u0131nda encrypt<\/code> veya dane<\/code> gibi daha s\u0131k\u0131 se\u00e7enekler d\u00fc\u015f\u00fcnebilirsiniz.<\/p>\n
        2.3. Master.cf Yap\u0131land\u0131rmas\u0131<\/h4>\n
        \/etc\/postfix\/master.cf<\/code> dosyas\u0131nda, 465 (SMTPS) portunu etkinle\u015ftirelim:<\/p>\n
        sudo nano \/etc\/postfix\/master.cf\n<\/code><\/pre>\n
        A\u015fa\u011f\u0131daki sat\u0131rlar\u0131n ba\u015f\u0131ndaki #<\/code> karakterini kald\u0131rarak yorum sat\u0131r\u0131 olmaktan \u00e7\u0131kar\u0131n:<\/p>\n
        smtps     inet  n       -       y       -       -       smtpd\n  -o smtpd_tls_wrappermode=yes\n  -o smtpd_sasl_auth_enable=yes\n  -o smtpd_client_restrictions=permit_sasl_authenticated,reject\n  -o smtpd_relay_restrictions=permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination\n<\/code><\/pre>\n
        2.4. Postfix Servisini Yeniden Ba\u015flatma<\/h4>\n
        Yap\u0131land\u0131rma de\u011fi\u015fikliklerinin etkili olmas\u0131 i\u00e7in Postfix’i yeniden ba\u015flat\u0131n:<\/p>\n
        sudo systemctl restart postfix\nsudo systemctl enable postfix\nsudo systemctl status postfix\n<\/code><\/pre>\n
        3. Dovecot Kurulumu ve Yap\u0131land\u0131rmas\u0131<\/h3>\n
        Dovecot, kullan\u0131c\u0131lar\u0131n e-postalar\u0131na IMAP ve POP3 protokolleri \u00fczerinden eri\u015fmesini sa\u011flar.<\/p>\n
        3.1. Dovecot Kurulumu<\/h4>\n
        sudo apt install dovecot-imapd dovecot-pop3d -y\n<\/code><\/pre>\n
        3.2. Dovecot Yap\u0131land\u0131rmas\u0131<\/h4>\n
        Dovecot’un yap\u0131land\u0131rma dosyalar\u0131 \/etc\/dovecot\/conf.d\/<\/code> dizininde bulunur. \u00d6nemli dosyalar\u0131 d\u00fczenleyelim:<\/p>\n
        sudo nano \/etc\/dovecot\/conf.d\/10-mail.conf\n<\/code><\/pre>\n
        mail_location<\/code> sat\u0131r\u0131n\u0131 bulun ve maildir:~\/Maildir<\/code> olarak ayarlay\u0131n:<\/p>\n
        mail_location = maildir:~\/Maildir\n<\/code><\/pre>\n
        sudo nano \/etc\/dovecot\/conf.d\/10-auth.conf\n<\/code><\/pre>\n
        disable_plaintext_auth<\/code> sat\u0131r\u0131n\u0131 bulun ve yes<\/code> olarak ayarlay\u0131n. Bu, d\u00fcz metin parola g\u00f6ndermeyi engeller ve g\u00fcvenli\u011fi art\u0131r\u0131r. Ancak test a\u015famas\u0131nda sorun ya\u015farsan\u0131z ge\u00e7ici olarak no<\/code> yapabilirsiniz:<\/p>\n
        disable_plaintext_auth = yes\nauth_mechanisms = plain login\n<\/code><\/pre>\n
        sudo nano \/etc\/dovecot\/conf.d\/10-master.conf\n<\/code><\/pre>\n
        Postfix’in Dovecot’un kimlik do\u011frulama mekanizmas\u0131n\u0131 kullanabilmesi i\u00e7in auth<\/code> socket’i yap\u0131land\u0131rmam\u0131z gerekiyor. service auth<\/code> blo\u011funu bulun ve a\u015fa\u011f\u0131daki gibi d\u00fczenleyin:<\/p>\n
        service auth {\n  unix_listener auth {\n    mode = 0660\n    user = postfix\n    group = postfix\n  }\n}\n<\/code><\/pre>\n
        sudo nano \/etc\/dovecot\/conf.d\/10-ssl.conf\n<\/code><\/pre>\n
        SSL\/TLS sertifikalar\u0131n\u0131 yap\u0131land\u0131r\u0131n. \u015eimdilik varsay\u0131lanlar\u0131 kullanaca\u011f\u0131z:<\/p>\n
        ssl = yes\nssl_cert = <\/etc\/dovecot\/dovecot.pem\nssl_key = <\/etc\/dovecot\/private\/dovecot.key\n<\/code><\/pre>\n
        Bu sertifikalar kendili\u011finden olu\u015fturulur. Daha sonra Let's Encrypt sertifikalar\u0131 ile g\u00fcncelleyece\u011fiz.<\/p>\n
        3.3. Dovecot Servisini Yeniden Ba\u015flatma<\/h4>\n
        sudo systemctl restart dovecot\nsudo systemctl enable dovecot\nsudo systemctl status dovecot\n<\/code><\/pre>\n
        4. G\u00fcvenlik \u0130yile\u015ftirmeleri ve Ek Yap\u0131land\u0131rmalar<\/h3>\n
        E-posta sunucunuzun g\u00fcvenli\u011fini art\u0131rmak ve daha g\u00fcvenilir hale getirmek i\u00e7in ek ad\u0131mlar atmal\u0131y\u0131z.<\/p>\n
        4.1. Let's Encrypt ile SSL\/TLS Sertifikalar\u0131<\/h4>\n
        Kendinden imzal\u0131 sertifikalar yerine Let's Encrypt ile \u00fccretsiz ve g\u00fcvenilir SSL\/TLS sertifikalar\u0131 alal\u0131m. Certbot arac\u0131n\u0131 kullanaca\u011f\u0131z.<\/p>\n
        sudo apt install certbot -y\nsudo certbot certonly --standalone -d mail.alanadiniz.com\n<\/code><\/pre>\n
        Talimatlar\u0131 takip edin. Sertifikalar\u0131n\u0131z \/etc\/letsencrypt\/live\/mail.alanadiniz.com\/<\/code> dizininde saklanacakt\u0131r.<\/p>\n
        \u015eimdi Postfix ve Dovecot'u bu sertifikalar\u0131 kullanacak \u015fekilde g\u00fcncelleyelim:<\/p>\n
        Postfix (main.cf):<\/strong><\/p>\n
        sudo nano \/etc\/postfix\/main.cf\n<\/code><\/pre>\n
        A\u015fa\u011f\u0131daki sat\u0131rlar\u0131 Let's Encrypt sertifika yollar\u0131yla g\u00fcncelleyin:<\/p>\n
        smtpd_tls_cert_file = \/etc\/letsencrypt\/live\/mail.alanadiniz.com\/fullchain.pem\nsmtpd_tls_key_file = \/etc\/letsencrypt\/live\/mail.alanadiniz.com\/privkey.pem\nsmtpd_tls_security_level = may # \u00dcretimde \"encrypt\" veya \"dane\" d\u00fc\u015f\u00fcnebilirsiniz.\n<\/code><\/pre>\n
        Dovecot (10-ssl.conf):<\/strong><\/p>\n
        sudo nano \/etc\/dovecot\/conf.d\/10-ssl.conf\n<\/code><\/pre>\n
        A\u015fa\u011f\u0131daki sat\u0131rlar\u0131 Let's Encrypt sertifika yollar\u0131yla g\u00fcncelleyin:<\/p>\n
        ssl_cert = <\/etc\/letsencrypt\/live\/mail.alanadiniz.com\/fullchain.pem\nssl_key = <\/etc\/letsencrypt\/live\/mail.alanadiniz.com\/privkey.pem\n<\/code><\/pre>\n
        Sertifikalar\u0131 g\u00fcncelledikten sonra her iki servisi de yeniden ba\u015flat\u0131n:<\/p>\n
        sudo systemctl restart postfix\nsudo systemctl restart dovecot\n<\/code><\/pre>\n
        4.2. E-posta Kullan\u0131c\u0131lar\u0131 Olu\u015fturma<\/h4>\n
        Postfix ve Dovecot genellikle sistem kullan\u0131c\u0131lar\u0131n\u0131 e-posta kullan\u0131c\u0131lar\u0131 olarak kullan\u0131r. Yeni bir e-posta hesab\u0131 olu\u015fturmak i\u00e7in yeni bir sistem kullan\u0131c\u0131s\u0131 eklemeniz yeterlidir:<\/p>\n
        sudo adduser yeni_kullanici\n<\/code><\/pre>\n
        Parola ve di\u011fer bilgileri girdikten sonra, yeni_kullanici@alanadiniz.com<\/code> adresine sahip bir e-posta hesab\u0131n\u0131z olacakt\u0131r.<\/p>\n
        4.3. Test Etme<\/h4>\n
        Art\u0131k bir e-posta istemcisi (Thunderbird, Outlook, Mail vb.) kullanarak yeni_kullanici@alanadiniz.com<\/code> hesab\u0131n\u0131za ba\u011flanmay\u0131 deneyebilirsiniz:<\/p>\n
          \n
        • IMAP Sunucusu:<\/strong> mail.alanadiniz.com<\/code>, Port: 993 (SSL\/TLS) veya 143 (STARTTLS)<\/li>\n
        • SMTP Sunucusu:<\/strong> mail.alanadiniz.com<\/code>, Port: 587 (STARTTLS) veya 465 (SSL\/TLS)<\/li>\n
        • Kullan\u0131c\u0131 Ad\u0131:<\/strong> yeni_kullanici<\/code> (tam e-posta adresi de\u011fil)<\/li>\n
        • Parola:<\/strong> yeni_kullanici<\/code> i\u00e7in belirledi\u011finiz parola<\/li>\n<\/ul>\n
          Kendinize veya ba\u015fka bir e-posta adresine test e-postalar\u0131 g\u00f6nderip alarak sunucunuzun do\u011fru \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 kontrol edin.<\/p>\n
          Sonu\u00e7 ve S\u0131k\u00e7a Sorulan Sorular (SSS)<\/h3>\n
          Bu rehberde, Postfix ve Dovecot kullanarak temel bir e-posta sunucusunu nas\u0131l kuraca\u011f\u0131n\u0131z\u0131 \u00f6\u011frendiniz. Kurulum, DNS yap\u0131land\u0131rmas\u0131, g\u00fcvenlik duvar\u0131 ayarlar\u0131 ve SSL\/TLS sertifikalar\u0131 gibi temel ad\u0131mlar\u0131 ba\u015far\u0131yla tamamlad\u0131n\u0131z. Kendi e-posta sunucunuzu y\u00f6netmek s\u00fcrekli bak\u0131m ve g\u00fcncellemeler gerektirse de, sundu\u011fu kontrol ve esneklik buna de\u011ferdir.<\/p>\n
          S\u0131k\u00e7a Sorulan Sorular (SSS)<\/h4>\n
          \n
          Neden kendi e-posta sunucumu kurmal\u0131y\u0131m?<\/dt>\n
          Gizlilik, veri kontrol\u00fc, \u00f6\u011frenme deneyimi ve e-posta hizmeti sa\u011flay\u0131c\u0131lar\u0131na olan ba\u011f\u0131ml\u0131l\u0131\u011f\u0131 azaltmak i\u00e7in kendi sunucunuzu kurabilirsiniz. Ayr\u0131ca, \u00f6zel ihtiya\u00e7lar\u0131n\u0131za g\u00f6re daha esnek yap\u0131land\u0131rmalar yapabilirsiniz.<\/dd>\n
          DNS kay\u0131tlar\u0131 neden bu kadar \u00f6nemli?<\/dt>\n
          DNS kay\u0131tlar\u0131, e-posta trafi\u011finin do\u011fru sunucuya y\u00f6nlendirilmesini ve e-postalar\u0131n\u0131z\u0131n spam olarak i\u015faretlenmemesini sa\u011flar. \u00d6zellikle MX, A, SPF, DKIM ve DMARC kay\u0131tlar\u0131, e-posta sunucunuzun g\u00fcvenilirli\u011fini ve teslim edilebilirli\u011fini art\u0131r\u0131r.<\/dd>\n
          SPF, DKIM, DMARC nedir ve neden kullan\u0131lmal\u0131?<\/dt>\n
          Bunlar e-posta kimlik do\u011frulama protokolleridir. SPF (Sender Policy Framework)<\/strong>, g\u00f6nderen sunucunun yetkili olup olmad\u0131\u011f\u0131n\u0131 kontrol eder. DKIM (DomainKeys Identified Mail)<\/strong>, e-postalar\u0131n de\u011fi\u015ftirilip de\u011fi\u015ftirilmedi\u011fini do\u011frulamak i\u00e7in kriptografik imzalar kullan\u0131r. DMARC (Domain-based Message Authentication, Reporting & Conformance)<\/strong> ise SPF ve DKIM politikalar\u0131n\u0131z\u0131n nas\u0131l uygulanaca\u011f\u0131n\u0131 belirler ve ba\u015far\u0131s\u0131z e-postalar hakk\u0131nda rapor alman\u0131z\u0131 sa\u011flar. Bu \u00fc\u00e7\u00fc, e-postalar\u0131n\u0131z\u0131n spam filtrelerine tak\u0131lmamas\u0131n\u0131 ve kimlik av\u0131 sald\u0131r\u0131lar\u0131n\u0131 \u00f6nlemeyi b\u00fcy\u00fck \u00f6l\u00e7\u00fcde sa\u011flar.<\/dd>\n
          E-posta sunucum spam g\u00f6ndermesin diye ne yapmal\u0131y\u0131m?<\/dt>\n
          G\u00fc\u00e7l\u00fc parolalar kullan\u0131n, t\u00fcm hizmetler i\u00e7in SSL\/TLS \u015fifrelemesini etkinle\u015ftirin, g\u00fcvenlik duvar\u0131n\u0131z\u0131 do\u011fru yap\u0131land\u0131r\u0131n. Ayr\u0131ca, sunucunuzu d\u00fczenli olarak g\u00fcncelleyin ve spam\/vir\u00fcs filtreleme \u00e7\u00f6z\u00fcmleri (\u00f6rne\u011fin SpamAssassin, ClamAV) entegre etmeyi d\u00fc\u015f\u00fcn\u00fcn.<\/dd>\n
          Sertifikalar neden \u00f6nemli?<\/dt>\n
          SSL\/TLS sertifikalar\u0131, e-posta trafi\u011finizi \u015fifreleyerek gizlili\u011fini ve g\u00fcvenli\u011fini sa\u011flar. Kullan\u0131c\u0131lar\u0131n\u0131z\u0131n e-posta istemcileri ile sunucunuz aras\u0131ndaki ileti\u015fimin g\u00fcvenli oldu\u011funu garanti eder ve man-in-the-middle sald\u0131r\u0131lar\u0131n\u0131 \u00f6nler.<\/dd>\n
          Webmail aray\u00fcz\u00fc nas\u0131l eklenir?<\/dt>\n
          Webmail aray\u00fczleri (\u00f6rne\u011fin Roundcube, SOGo, RainLoop), kullan\u0131c\u0131lara bir web taray\u0131c\u0131s\u0131 \u00fczerinden e-postalar\u0131na eri\u015fme imkan\u0131 sunar. Bu uygulamalar genellikle PHP tabanl\u0131d\u0131r ve Apache veya Nginx gibi bir web sunucusu \u00fczerinde \u00e7al\u0131\u015f\u0131r. Kurulumlar\u0131 genellikle ayr\u0131 bir rehber konusudur ve sunucunuza bir web sunucusu kurman\u0131z\u0131 gerektirir.<\/dd>\n
          E-posta sunucum \u00e7al\u0131\u015fm\u0131yor, nereden ba\u015flamal\u0131y\u0131m?<\/dt>\n
          \u0130lk olarak sistem loglar\u0131n\u0131 kontrol edin: sudo tail -f \/var\/log\/mail.log<\/code> veya sudo journalctl -u postfix<\/code>, sudo journalctl -u dovecot<\/code>. G\u00fcvenlik duvar\u0131 ayarlar\u0131n\u0131z\u0131 kontrol edin ve portlar\u0131n a\u00e7\u0131k oldu\u011fundan emin olun. DNS kay\u0131tlar\u0131n\u0131z\u0131n do\u011fru oldu\u011fundan emin olmak i\u00e7in online ara\u00e7lar kullan\u0131n (\u00f6rne\u011fin MXToolbox). Ayr\u0131ca, yap\u0131land\u0131rma dosyalar\u0131n\u0131zdaki yaz\u0131m hatalar\u0131n\u0131 kontrol edin.<\/dd>\n<\/dl>\n
          <\/body><\/p>\n","protected":false},"excerpt":{"rendered":"Postfix ve Dovecot ile Kendi E-posta Sunucunuzu Kurma Rehberi\nGiri\u015f\nKendi e-posta sunucunuzu kurmak, dijital ba\u011f\u0131ms\u0131zl\u0131\u011f\u0131n\u0131z\u0131 art\u0131rman\u0131n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-34444","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"\nPostfix ve Dovecot ile Kendi E-posta Sunucunuzu Kurma Rehberi - Kodlar\u0131n Gizemli D\u00fcnyas\u0131<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fatihsoysal.com\/blog\/postfix-ve-dovecot-ile-kendi-e-posta-sunucunuzu-kurma-rehberi\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Postfix ve Dovecot ile Kendi E-posta Sunucunuzu Kurma Rehberi\" \/>\n<meta property=\"og:description\" content=\"Postfix ve Dovecot ile Kendi E-posta Sunucunuzu Kurma Rehberi Giri\u015f Kendi e-posta sunucunuzu kurmak, dijital ba\u011f\u0131ms\u0131zl\u0131\u011f\u0131n\u0131z\u0131 art\u0131rman\u0131n\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/postfix-ve-dovecot-ile-kendi-e-posta-sunucunuzu-kurma-rehberi\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2025-11-16T15:41:39+00:00\" \/>\n<meta name=\"author\" content=\"Fatih Soysal\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Yazan:\" \/>\n\t<meta name=\"twitter:data1\" content=\"Fatih Soysal\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postfix-ve-dovecot-ile-kendi-e-posta-sunucunuzu-kurma-rehberi\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postfix-ve-dovecot-ile-kendi-e-posta-sunucunuzu-kurma-rehberi\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"Postfix ve Dovecot ile Kendi E-posta Sunucunuzu Kurma Rehberi\",\"datePublished\":\"2025-11-16T15:41:39+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postfix-ve-dovecot-ile-kendi-e-posta-sunucunuzu-kurma-rehberi\/\"},\"wordCount\":1664,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/postfix-ve-dovecot-ile-kendi-e-posta-sunucunuzu-kurma-rehberi\/#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postfix-ve-dovecot-ile-kendi-e-posta-sunucunuzu-kurma-rehberi\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/postfix-ve-dovecot-ile-kendi-e-posta-sunucunuzu-kurma-rehberi\/\",\"name\":\"Postfix ve Dovecot ile Kendi E-posta Sunucunuzu Kurma Rehberi - 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