{"id":18376,"date":"2023-09-21T08:11:05","date_gmt":"2023-09-21T08:11:05","guid":{"rendered":"https:\/\/soloweb.com.br\/blog\/?p=18376"},"modified":"2023-09-28T11:32:50","modified_gmt":"2023-09-28T11:32:50","slug":"instalando-e-configurando-o-postfix-para-envio-de-e-mail-no-servidor","status":"publish","type":"post","link":"https:\/\/soloweb.com.br\/blog\/2023\/09\/21\/instalando-e-configurando-o-postfix-para-envio-de-e-mail-no-servidor\/","title":{"rendered":"Instalando e configurando o Postfix para envio de e-mail no servidor"},"content":{"rendered":"\n<p>Na dica de hoje, vamos ensinar a instalar e configurar o Postfix no seu Ubuntu.<\/p>\n\n\n\n<p>Precisando de um servidor de e-mail ou melhorar a administra\u00e7\u00e3o do seu servidor de e-mail? Falo conosco <a href=\"https:\/\/soloweb.com.br\" class=\"ek-link\">https:\/\/soloweb.com.br<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Passo 1<\/h2>\n\n\n\n<p>Vamos verificar e configurar o hostname:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ hostname -f\n$ hostname nome.servidor.com.br<\/code><\/pre>\n\n\n\n<p>Agora acesse o arquivo hosts que fica em \/etc\/hosts e aponte o ip para seu hostname:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ vim \/etc\/hosts\n-=-=-=-=-=-=-=-\n127.0.10.111 nome.servidor.com.br\n-=-=-=-=-=-=-=-<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Passo 2<\/h2>\n\n\n\n<p>Vamos instalar o Postfix, primeiro vamos atualizar o reposit\u00f3rio do Ubuntu:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ sudo apt-get update<\/code><\/pre>\n\n\n\n<p>Agora vamos instalar o Postfix com a aplica\u00e7\u00e3o mailutils, esse comando ir\u00e1 instalar o Postfix + algumas aplica\u00e7\u00f5es necess\u00e1rias para seu funcionamento:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ sudo apt install mailutils<\/code><\/pre>\n\n\n\n<p>Na instala\u00e7\u00e3o ir\u00e1 aparecer uma janela no terminal para continuar a configura\u00e7\u00e3o do Postfix, escolha a op\u00e7\u00e3o &#8220;Internet Site&#8221;(Site de internet) basta caminhar nas op\u00e7\u00f5es apertando a tecla &#8220;TAB&#8221; e depois confirme com a tecla &#8220;ENTER&#8221;.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"745\" height=\"512\" src=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2023\/09\/1_6VFyNMocxMFw1UI1eY7z3w.webp\" alt=\"\" class=\"wp-image-18377\" srcset=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2023\/09\/1_6VFyNMocxMFw1UI1eY7z3w.webp 745w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2023\/09\/1_6VFyNMocxMFw1UI1eY7z3w-300x206.webp 300w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2023\/09\/1_6VFyNMocxMFw1UI1eY7z3w-130x90.webp 130w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2023\/09\/1_6VFyNMocxMFw1UI1eY7z3w-150x103.webp 150w\" sizes=\"auto, (max-width: 745px) 100vw, 745px\" \/><\/figure>\n\n\n\n<p>Agora vamos configurar o dom\u00ednio FQDN, que \u00e9 o dom\u00ednio de uso principal do seu servidor, como estamos fazendo uma configura\u00e7\u00e3o simples e funcional vamos apenas repetir o nome do hostname que configuramos: (nome.servidor.com.br)<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"745\" height=\"210\" src=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2023\/09\/1_N0J87SUIgujRqjiSnQFBcg.webp\" alt=\"\" class=\"wp-image-18378\" srcset=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2023\/09\/1_N0J87SUIgujRqjiSnQFBcg.webp 745w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2023\/09\/1_N0J87SUIgujRqjiSnQFBcg-300x85.webp 300w, https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2023\/09\/1_N0J87SUIgujRqjiSnQFBcg-150x42.webp 150w\" sizes=\"auto, (max-width: 745px) 100vw, 745px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Passo 3<\/h2>\n\n\n\n<p>Como n\u00e3o estamos com um dom\u00ednio v\u00e1lido, vamos agora configurar o envio a partir de uma conta gmail, em outras configura\u00e7\u00f5es vamos ensinar com um dom\u00ednio comum.<\/p>\n\n\n\n<p>Acesse o arquivo principal de configura\u00e7\u00e3o do Postfix main.cf:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ sudo \/etc\/postfix\/main.cf<\/code><\/pre>\n\n\n\n<p>Procure o par\u00e2metro &#8220;relayhost=&#8221; e configure os seguintes valores:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>relayhost = &#91;smtp.gmail.com]:587<\/code><\/pre>\n\n\n\n<p>Agora vamos configurar as seguintes linhas no final do arquivo, para permitir autentica\u00e7\u00e3o segura e ler senhas Hashs para SMTP:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># Enables SASL authentication for postfix \nsmtp_sasl_auth_enable = yes \n# Disallow methods that allow anonymous authentication smtp_sasl_security_options = noanonymous \n# Location of sasl_passwd we saved \nsmtp_sasl_password_maps = hash:\/etc\/postfix\/sasl\/sasl_passwd\n# Enable STARTTLS encryption for SMTP \nsmtp_tls_security_level = encrypt \n# Location of CA certificates for TLS \nsmtp_tls_CAfile = \/etc\/ssl\/certs\/ca-certificates.crt<\/code><\/pre>\n\n\n\n<p>Agora certifique se o nome do host est\u00e1 configurado corretamento no arquivo de configura\u00e7\u00e3o, no par\u00e2metro &#8220;myhostname=&#8221; :<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>myhostname = nome.servidor.com.br<\/code><\/pre>\n\n\n\n<p>Agora salve tudo e vamos para o pr\u00f3ximo passo.<\/p>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-wp-embed is-provider-soloweb-tecnologia wp-block-embed-soloweb-tecnologia\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"MO2qHJJVgb\"><a href=\"https:\/\/soloweb.com.br\/blog\/2019\/12\/27\/soloweb-dicas-comandos-do-postfix-para-auxiliar-monitoramento\/\">SOLOWEB Dicas &#8211; Comandos do postfix para auxiliar monitoramento<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;SOLOWEB Dicas &#8211; Comandos do postfix para auxiliar monitoramento&#8221; &#8212; SOLOWEB Tecnologia\" src=\"https:\/\/soloweb.com.br\/blog\/2019\/12\/27\/soloweb-dicas-comandos-do-postfix-para-auxiliar-monitoramento\/embed\/#?secret=iyHwbKh9Bn#?secret=MO2qHJJVgb\" data-secret=\"MO2qHJJVgb\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Passo 4<\/h2>\n\n\n\n<p>Vamos agora configurar as credenciais de sua conta em um novo arquivo, sasl_passwd:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ sudo vim \/etc\/postfix\/sasl\/sasl_passwd\n\n-=-=-=-=-=-=-=-=-=-=-\n&#91;smtp.gmail.com]:587 usuariogmail@gmail.com:senha\n-=-=-=-=-=-=-=-=-=-=-<\/code><\/pre>\n\n\n\n<p>Agora vamos converter o arquivo criado em um arquivo da base de dados do postfix com o seguinte comando:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo postmap \/etc\/postfix\/sasl\/sasl_passwd<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Passo 5<\/h2>\n\n\n\n<p>Finalizando agora, vamos dar as permiss\u00f5es corretas ao arquivo criado e vamos reiniciar o Postfix e realizar o envio teste: <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ chown root:root \/etc\/postfix\/sasl\/sasl_passwd\n$ chmod 600 \/etc\/postfix\/sasl\/sasl_passwd\n$ service postfix restart<\/code><\/pre>\n\n\n\n<p>Agora s\u00f3 realizar o envio teste:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>$ echo \"Teste de envio do postfix Tutorial Soloweb\" | mail -s \"Postfix Soloweb\" tutorial@soloweb.com.br<\/code><\/pre>\n\n\n\n<p>Agora s\u00f3 verificar na caixa de e-mail.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Na dica de hoje, vamos ensinar a instalar e configurar o Postfix no seu Ubuntu. Precisando de um servidor de<\/p>\n","protected":false},"author":5,"featured_media":18383,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","_editorskit_title_hidden":false,"_editorskit_reading_time":0,"_editorskit_is_block_options_detached":false,"_editorskit_block_options_position":"{}","footnotes":""},"categories":[302,303,114,131],"tags":[428,432,180,154],"class_list":["post-18376","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-destaque-principal","category-destaque-secundario","category-dicas","category-gerenciamento","tag-gerencimento","tag-gmail","tag-postfix","tag-ubuntu"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Instalando e configurando o Postfix para envio de e-mail no servidor - SOLOWEB Tecnologia<\/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:\/\/soloweb.com.br\/blog\/2023\/09\/21\/instalando-e-configurando-o-postfix-para-envio-de-e-mail-no-servidor\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Instalando e configurando o Postfix para envio de e-mail no servidor - SOLOWEB Tecnologia\" \/>\n<meta property=\"og:description\" content=\"Na dica de hoje, vamos ensinar a instalar e configurar o Postfix no seu Ubuntu. 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