{"id":6257,"date":"2026-11-05T12:59:51","date_gmt":"2026-11-05T05:59:51","guid":{"rendered":"https:\/\/www.cloudaja.id\/artikel\/?p=6257"},"modified":"2026-11-05T12:59:53","modified_gmt":"2026-11-05T05:59:53","slug":"tutorial-install-mail-server-dengan-iredmail","status":"publish","type":"post","link":"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/","title":{"rendered":"Tutorial Install Mail Server dengan iRedMail"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Jika Anda ingin install mail server <strong>iRedMail<\/strong> di sistem operasi <strong>RHEL atau Almalinux<\/strong>, berikut panduan lengkap dan ringkas yang bisa Anda ikuti. Panduan ini cocok untuk pemula maupun sysadmin yang ingin membangun server email mandiri dengan aman dan efisien.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"856\" src=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/10\/email-server-diagram.jpg\" alt=\"ilustrasi komunikasi email server untuk install mail server iRedMail\" class=\"wp-image-8315\" srcset=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/10\/email-server-diagram.jpg 1280w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/10\/email-server-diagram-300x201.jpg 300w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/10\/email-server-diagram-1024x685.jpg 1024w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/10\/email-server-diagram-768x514.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><figcaption class=\"wp-element-caption\">Ilustrasi komunikasi email server \u2014 membangun mail server sendiri dengan iRedMail<\/figcaption><\/figure>\n<\/div>\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Daftar Isi<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/#Persiapan_Server_untuk_Install_Mail_Server_iRedMail\" >Persiapan Server untuk Install Mail Server iRedMail<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/#Port_25_Harus_Terbuka\" >Port 25 Harus Terbuka<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/#Spesifikasi_Minimum_untuk_Install_Mail_Server_iRedMail\" >Spesifikasi Minimum untuk Install Mail Server iRedMail<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/#Nonaktifkan_SELinux\" >Nonaktifkan SELinux<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/#Aktifkan_Repository_yang_Dibutuhkan\" >Aktifkan Repository yang Dibutuhkan<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/#Cara_Install_Mail_Server_iRedMail_Unduh_dan_Jalankan\" >Cara Install Mail Server iRedMail: Unduh dan Jalankan<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/#Pilih_Backend_Database_untuk_Akun_Email\" >Pilih Backend Database untuk Akun Email<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/#Masukkan_Nama_Domain_Email\" >Masukkan Nama Domain Email<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/#Atur_Password_Administrator\" >Atur Password Administrator<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/#Pilih_Komponen_Tambahan_Optional_Components\" >Pilih Komponen Tambahan (Optional Components)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/#Konfirmasi_dan_Mulai_Instalasi\" >Konfirmasi dan Mulai Instalasi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/#Reboot_dan_Periksa_File_iRedMailtips\" >Reboot dan Periksa File iRedMail.tips<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/#Mengakses_Webmail_dan_Panel_Administrasi\" >Mengakses Webmail dan Panel Administrasi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/#Buka_Port_Firewall_yang_Dibutuhkan\" >Buka Port Firewall yang Dibutuhkan<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/#Konfigurasi_DNS_Record_untuk_Mail_Server\" >Konfigurasi DNS Record untuk Mail Server<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.cloudaja.id\/artikel\/tutorial-install-mail-server-dengan-iredmail\/#Penutup\" >Penutup<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Persiapan_Server_untuk_Install_Mail_Server_iRedMail\"><\/span>Persiapan Server untuk Install Mail Server iRedMail<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pastikan Anda menggunakan server baru, tanpa software email lain yang sudah terinstal seperti Postfix, Dovecot, MySQL, OpenLDAP, atau Amavisd. iRedMail akan mengatur semuanya secara otomatis. Instalasi di server yang sudah digunakan untuk mail server sebelumnya sangat tidak disarankan karena bisa menyebabkan konflik konfigurasi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Port_25_Harus_Terbuka\"><\/span>Port 25 Harus Terbuka<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Port 25 digunakan untuk komunikasi antar server email, dan <strong>wajib terbuka<\/strong> agar server bisa mengirim dan menerima email dari luar. Berikut adalah penyedia layanan VPS dengan open all port:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.cloudaja.id\/cloud-vps-indonesia\" data-type=\"link\" data-id=\"https:\/\/www.cloudaja.id\/cloud-vps-indonesia\">CloudAJA<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.natanetwork.com\/vps-ssd-indonesia\/\" data-type=\"link\" data-id=\"https:\/\/www.natanetwork.com\/vps-ssd-indonesia\/\">Natanetwork<\/a><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pastikan Anda memilih <a href=\"https:\/\/www.cloudaja.id\/vps-murah\/\" target=\"_blank\">penyedia VPS<\/a> yang mendukung penggunaan port 25 jika ingin menggunakan iRedMail secara penuh.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Spesifikasi_Minimum_untuk_Install_Mail_Server_iRedMail\"><\/span>Spesifikasi Minimum untuk Install Mail Server iRedMail<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Agar mail server berjalan stabil, berikut spesifikasi minimum yang direkomendasikan:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sistem Operasi<\/strong>: RHEL 8\/9 atau CentOS 8\/Stream (versi terbaru).<\/li>\n\n\n\n<li><strong>RAM<\/strong>: Minimal 4 GB (lebih besar lebih baik, terutama untuk beban tinggi).<\/li>\n\n\n\n<li><strong>Hostname<\/strong>: Gunakan FQDN (Fully Qualified Domain Name), misalnya <code>mail.domainanda.com<\/code>.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Setelah mengganti hostname, reboot server agar perubahan berlaku. Gunakan perintah <code>hostname -f<\/code> untuk mengecek apakah hostname sudah sesuai.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Nonaktifkan_SELinux\"><\/span>Nonaktifkan SELinux<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">iRedMail tidak bekerja dengan baik jika SELinux aktif. Anda bisa menonaktifkannya dengan mengedit file <code>\/etc\/selinux\/config<\/code> dan mengubah baris:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>SELINUX=disabled\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Simpan dan reboot server. Atau, untuk menonaktifkan sementara:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>setenforce 0\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Aktifkan_Repository_yang_Dibutuhkan\"><\/span>Aktifkan Repository yang Dibutuhkan<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Agar proses instalasi berjalan lancar, aktifkan repository berikut:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Untuk <strong>Almalinux<\/strong>:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>AppStream<\/li>\n\n\n\n<li>PowerTools<\/li>\n\n\n\n<li>EPEL<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Untuk RHEL:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dnf -y install https:\/\/dl.fedoraproject.org\/pub\/epel\/epel-release-latest-8.noarch.rpm\nsubscription-manager repos --enable codeready-builder-for-rhel-8-x86_64-rpms\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Matikan semua repository pihak ketiga untuk mencegah konflik paket.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cara_Install_Mail_Server_iRedMail_Unduh_dan_Jalankan\"><\/span>Cara Install Mail Server iRedMail: Unduh dan Jalankan<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Unduh versi terbaru iRedMail dari situs resminya: <a href=\"https:\/\/www.iredmail.org\/download.html\">https:\/\/www.iredmail.org\/download.html<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Upload file ke server Anda, misalnya ke <code>\/root<\/code>, lalu jalankan perintah berikut:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cd \/root\ntar zxf iRedMail-x.y.z.tar.gz\ncd iRedMail-x.y.z\nbash iRedMail.sh\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Gantilah <code>x.y.z<\/code> dengan versi terbaru yang Anda unduh. Installer akan menanyakan beberapa konfigurasi dasar, lalu akan menginstal dan mengatur semua komponen mail server secara otomatis.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"639\" src=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2025\/05\/image-36-1024x639.png\" alt=\"install iredmail\" class=\"wp-image-6259\" srcset=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2025\/05\/image-36-1024x639.png 1024w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2025\/05\/image-36-300x187.png 300w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2025\/05\/image-36-768x479.png 768w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2025\/05\/image-36.png 1504w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Tentukan lokasi untuk menyimpan semua <strong>kotak surat (mailbox)<\/strong>. Lokasi default-nya adalah:<br><code>\/var\/vmail\/<\/code><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"643\" src=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2025\/05\/image-37-1024x643.png\" alt=\"panduan install mail server iRedMail di CentOS\" class=\"wp-image-6260\" srcset=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2025\/05\/image-37-1024x643.png 1024w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2025\/05\/image-37-300x188.png 300w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2025\/05\/image-37-768x482.png 768w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2025\/05\/image-37.png 1494w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pilih_Backend_Database_untuk_Akun_Email\"><\/span>Pilih Backend Database untuk Akun Email<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Setelah lokasi penyimpanan mailbox ditentukan, tekan <strong>Next<\/strong> untuk melanjutkan. Installer akan otomatis menggunakan <strong>Nginx<\/strong> sebagai web server (tanpa perlu memilih), lalu meminta Anda memilih backend database yang akan dipakai untuk menyimpan akun email.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1500\" height=\"944\" src=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-pilih-backend-database.png\" alt=\"Pilih backend database MySQL, MariaDB, PostgreSQL, atau OpenLDAP saat install mail server iRedMail\" class=\"wp-image-8321\" srcset=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-pilih-backend-database.png 1500w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-pilih-backend-database-300x189.png 300w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-pilih-backend-database-1024x644.png 1024w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-pilih-backend-database-768x483.png 768w\" sizes=\"auto, (max-width: 1500px) 100vw, 1500px\" \/><\/figure>\n<\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>MySQL\/MariaDB<\/strong> : pilihan paling umum dan paling mudah dikelola, cocok untuk sebagian besar kebutuhan.<\/li>\n\n\n\n<li><strong>PostgreSQL<\/strong> : alternatif database relasional dengan performa yang baik.<\/li>\n\n\n\n<li><strong>OpenLDAP<\/strong> : cocok jika Anda sudah memiliki infrastruktur direktori LDAP atau membutuhkan autentikasi terpusat; jika memilih opsi ini, Anda akan diminta memasukkan LDAP suffix, misalnya <code>dc=domainanda,dc=com<\/code>.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Gunakan tombol spasi untuk memilih, lalu tekan <strong>Next<\/strong>. Jika memilih MySQL\/MariaDB atau PostgreSQL, installer akan membuatkan password database secara otomatis dan menyimpannya di file <code>iRedMail.tips<\/code> yang akan dibahas pada bagian akhir panduan ini.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Masukkan_Nama_Domain_Email\"><\/span>Masukkan Nama Domain Email<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Langkah berikutnya, installer akan meminta Anda memasukkan nama domain pertama yang akan digunakan untuk email, misalnya <code>domainanda.com<\/code>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Perlu diperhatikan, nama domain ini <strong>berbeda<\/strong> dengan hostname server (<code>mail.domainanda.com<\/code>). Domain inilah yang akan muncul di belakang tanda @ pada alamat email Anda, misalnya <code>user@domainanda.com<\/code>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1494\" height=\"936\" src=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-nama-domain-email.png\" alt=\"Masukkan nama domain email pertama saat instalasi mail server iRedMail\" class=\"wp-image-8322\" srcset=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-nama-domain-email.png 1494w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-nama-domain-email-300x188.png 300w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-nama-domain-email-1024x642.png 1024w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-nama-domain-email-768x481.png 768w\" sizes=\"auto, (max-width: 1494px) 100vw, 1494px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Atur_Password_Administrator\"><\/span>Atur Password Administrator<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Setelah domain ditentukan, Anda akan diminta membuat password untuk akun admin, yaitu <code>postmaster@domainanda.com<\/code>. Akun ini otomatis dibuat sebagai mail user sekaligus administrator utama, dan bisa digunakan untuk login ke <strong>iRedAdmin<\/strong> (panel administrasi) maupun ke webmail (Roundcube atau SOGo). Gunakan password yang kuat karena akun ini memiliki akses penuh ke seluruh sistem mail.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1490\" height=\"942\" src=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-password-administrator.png\" alt=\"Atur password administrator postmaster saat install mail server iRedMail\" class=\"wp-image-8323\" srcset=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-password-administrator.png 1490w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-password-administrator-300x190.png 300w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-password-administrator-1024x647.png 1024w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-password-administrator-768x486.png 768w\" sizes=\"auto, (max-width: 1490px) 100vw, 1490px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pilih_Komponen_Tambahan_Optional_Components\"><\/span>Pilih Komponen Tambahan (Optional Components)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tahap berikutnya adalah memilih komponen opsional yang ingin diaktifkan. Sesuai rekomendasi default iRedMail, berikut pilihannya:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1502\" height=\"946\" src=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-komponen-tambahan.png\" alt=\"Pilih komponen tambahan iRedAdmin, Roundcube, SOGo, dan Fail2ban saat install mail server iRedMail\" class=\"wp-image-8324\" srcset=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-komponen-tambahan.png 1502w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-komponen-tambahan-300x189.png 300w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-komponen-tambahan-1024x645.png 1024w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-komponen-tambahan-768x484.png 768w\" sizes=\"auto, (max-width: 1502px) 100vw, 1502px\" \/><\/figure>\n<\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>iRedAdmin<\/strong> : panel administrasi resmi berbasis web untuk mengelola domain, akun, dan alias email.<\/li>\n\n\n\n<li><strong>Roundcubemail<\/strong> : webmail client berbasis PHP\/AJAX, direkomendasikan untuk diaktifkan.<\/li>\n\n\n\n<li><strong>SOGo<\/strong> : groupware dengan webmail, kalender, dan address book; aktifkan jika Anda membutuhkan fitur ini.<\/li>\n\n\n\n<li><strong>Fail2Ban<\/strong> : memblokir IP yang terlalu banyak melakukan percobaan login gagal, sangat disarankan aktif.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Perlu dicatat, fitur <strong>DKIM signing\/verification<\/strong> dan <strong>SPF validation<\/strong> sudah aktif secara default sejak tahap ini  DNS record untuk keduanya wajib ditambahkan setelah instalasi selesai (dibahas di bagian akhir panduan). Pilih komponen sesuai kebutuhan dengan menekan tombol spasi pada opsi yang diinginkan, lalu tekan <strong>Next<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Konfirmasi_dan_Mulai_Instalasi\"><\/span>Konfirmasi dan Mulai Instalasi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Installer akan menampilkan ringkasan seluruh konfigurasi yang telah Anda pilih. Periksa kembali ringkasan tersebut, lalu ketik <code>y<\/code> dan tekan Enter untuk memulai proses instalasi.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1540\" height=\"924\" src=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-konfirmasi-instalasi.png\" alt=\"Konfirmasi ringkasan konfigurasi dan mulai instalasi mail server iRedMail\" class=\"wp-image-8325\" srcset=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-konfirmasi-instalasi.png 1540w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-konfirmasi-instalasi-300x180.png 300w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-konfirmasi-instalasi-1024x614.png 1024w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-konfirmasi-instalasi-768x461.png 768w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/iredmail-konfirmasi-instalasi-1536x922.png 1536w\" sizes=\"auto, (max-width: 1540px) 100vw, 1540px\" \/><\/figure>\n<\/div>\n\n\n<pre class=\"wp-block-code\"><code>y<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Proses instalasi biasanya memakan waktu 5-15 menit, tergantung kecepatan server dan koneksi internet. Jangan menutup terminal atau menginterupsi proses ini sebelum selesai.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Reboot_dan_Periksa_File_iRedMailtips\"><\/span>Reboot dan Periksa File iRedMail.tips<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Setelah instalasi selesai, reboot server agar seluruh perubahan (termasuk SELinux dan registrasi service) diterapkan dengan sempurna.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>reboot<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Setelah server menyala kembali, buka file <code>iRedMail.tips<\/code> yang berisi seluruh kredensial, password database, serta lokasi file konfigurasi penting:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cat \/root\/iRedMail-x.y.z\/iRedMail.tips<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Amankan file ini dengan membatasi aksesnya hanya untuk root:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>chmod 600 \/root\/iRedMail-*\/iRedMail.tips<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Mengakses_Webmail_dan_Panel_Administrasi\"><\/span>Mengakses Webmail dan Panel Administrasi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ganti <code>domainanda.com<\/code> dengan domain mail server Anda sendiri untuk mengakses layanan berikut melalui browser:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Roundcube (webmail): <code>https:\/\/mail.domainanda.com\/mail\/<\/code><\/li>\n\n\n\n<li>iRedAdmin (panel admin): <code>https:\/\/mail.domainanda.com\/iredadmin\/<\/code><\/li>\n\n\n\n<li>SOGo (jika diaktifkan): <code>https:\/\/mail.domainanda.com\/SOGo\/<\/code><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pada kunjungan pertama, browser kemungkinan menampilkan peringatan sertifikat SSL karena iRedMail menggunakan sertifikat self-signed secara default. Anda bisa mengabaikannya untuk sementara, atau memasang sertifikat gratis dari Let&#8217;s Encrypt agar lebih aman.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pastikan seluruh service utama berjalan dengan baik:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl status postfix dovecot nginx amavisd<\/code><\/pre>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"436\" src=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/image-1024x436.png\" alt=\"\" class=\"wp-image-8328\" srcset=\"https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/image-1024x436.png 1024w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/image-766x326.png 766w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/image-300x128.png 300w, https:\/\/www.cloudaja.id\/artikel\/wp-content\/uploads\/2026\/11\/image.png 1057w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Buka_Port_Firewall_yang_Dibutuhkan\"><\/span>Buka Port Firewall yang Dibutuhkan<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Agar mail server dapat diakses dari luar, buka port-port berikut melalui firewalld:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>firewall-cmd --permanent --add-service=smtp\nfirewall-cmd --permanent --add-service=smtps\nfirewall-cmd --permanent --add-port=587\/tcp\nfirewall-cmd --permanent --add-service=imap\nfirewall-cmd --permanent --add-service=imaps\nfirewall-cmd --permanent --add-service=pop3s\nfirewall-cmd --permanent --add-service=http\nfirewall-cmd --permanent --add-service=https\nfirewall-cmd --reload<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Berikut ringkasan fungsi masing-masing port:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>25 (SMTP)<\/strong> : pengiriman email antar server, wajib terbuka agar bisa menerima email masuk.<\/li>\n\n\n\n<li><strong>80 (HTTP)<\/strong> : akses web, biasanya otomatis diarahkan ke HTTPS.<\/li>\n\n\n\n<li><strong>443 (HTTPS)<\/strong> : akses webmail dan panel admin.<\/li>\n\n\n\n<li><strong>587 (Submission)<\/strong> : pengiriman email keluar dari klien email (STARTTLS).<\/li>\n\n\n\n<li><strong>465 (SMTPS)<\/strong> : pengiriman email keluar dengan TLS langsung.<\/li>\n\n\n\n<li><strong>143\/993 (IMAP\/IMAPS)<\/strong> : pengambilan email, disarankan gunakan versi aman (993).<\/li>\n\n\n\n<li><strong>110\/995 (POP3\/POP3S)<\/strong> : alternatif pengambilan email, disarankan gunakan versi aman (995).<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pastikan juga penyedia server\/cloud Anda tidak memblokir port 25, karena beberapa provider seperti Vultr, DigitalOcean, AWS, Google Cloud, dan Azure membatasi port ini secara default untuk mencegah spam.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Konfigurasi_DNS_Record_untuk_Mail_Server\"><\/span>Konfigurasi DNS Record untuk Mail Server<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Agar email dapat dikirim dan diterima dengan benar serta tidak masuk folder spam, tambahkan DNS record berikut pada domain Anda:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A record<\/strong> : mengarahkan hostname mail server ke alamat IP server, contoh: <code>mail.domainanda.com. A 203.0.113.10<\/code><\/li>\n\n\n\n<li><strong>MX record<\/strong> : menentukan server mana yang menangani email domain, contoh: <code>domainanda.com. MX 10 mail.domainanda.com.<\/code><\/li>\n\n\n\n<li><strong>PTR record (reverse DNS)<\/strong> : mengarahkan IP kembali ke hostname, biasanya diatur melalui penyedia VPS\/cloud Anda.<\/li>\n\n\n\n<li><strong>SPF record<\/strong> : TXT record berisi daftar server yang diizinkan mengirim email atas nama domain, contoh: <code>\"v=spf1 mx -all\"<\/code><\/li>\n\n\n\n<li><strong>DKIM record<\/strong> : TXT record berisi public key untuk menandatangani email. Dapatkan key dengan perintah <code>amavisd-new showkeys<\/code>, lalu publikasikan di <code>dkim._domainkey.domainanda.com<\/code>.<\/li>\n\n\n\n<li><strong>DMARC record<\/strong> : TXT record kebijakan autentikasi email di <code>_dmarc.domainanda.com<\/code>, contoh: <code>\"v=DMARC1; p=quarantine; rua=mailto:postmaster@domainanda.com\"<\/code><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Verifikasi DKIM dengan perintah:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>amavisd-new testkeys<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Setelah seluruh DNS record aktif (propagasi biasanya memerlukan waktu beberapa jam), mail server iRedMail Anda siap digunakan untuk mengirim dan menerima email secara penuh.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Penutup\"><\/span>Penutup<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Dengan mengikuti panduan di atas, Anda dapat berhasil install mail server iRedMail di RHEL atau Almalinux\/CentOS dan telah memiliki email server yang aman tanpa bergantung pada layanan email server pihak ketiga.. Pastikan Anda memilih penyedia server yang memungkinkan penggunaan port 25 dan menyiapkan sistem dengan benar agar instalasi berjalan lancar. Untuk Layanan VPS open all port, bisa <a href=\"https:\/\/www.cloudaja.id\/cloud-vps-indonesia\" data-type=\"link\" data-id=\"https:\/\/www.cloudaja.id\/cloud-vps-indonesia\">order melalui CloudAJA<\/a>. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jika Anda ingin install mail server iRedMail di sistem operasi RHEL atau Almalinux, berikut panduan lengkap dan ringkas yang bisa Anda ikuti. Panduan ini cocok untuk pemula maupun sysadmin yang ingin membangun server email mandiri dengan aman dan efisien. Persiapan Server untuk Install Mail Server iRedMail Pastikan Anda menggunakan server baru, tanpa software email lain [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":8330,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"seo_booster_metabox":"","footnotes":""},"categories":[1094],"tags":[157,546,91],"class_list":["post-6257","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-email-hosting","tag-email","tag-email-hosting","tag-vps"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Install Mail Server iRedMail di RHEL\/CentOS: Panduan Lengkap<\/title>\n<meta name=\"description\" content=\"Cara install mail server iRedMail di RHEL\/CentOS. 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