ispmail-workaround-org/dist/ispmail-bookworm/webmail-using-roundcube/index.html
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</script> <ul class="top-level astro-3ii7xxms"> <li class="astro-3ii7xxms"> <details open class="astro-3ii7xxms"> <sl-sidebar-restore data-index="0"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <span class="group-label astro-3ii7xxms"> <span class="large astro-3ii7xxms">ISPmail for Debian 13</span> </span> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewBox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"><path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z"/></svg> </summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"> <a href="/ispmail-trixie/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Start here</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/upgrading/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Upgrading from Debian Bookworm</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/install-debian/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Installing Debian</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/install-the-software-packages/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Install software packages</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/virtual-domains/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Virtual domains</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/database/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Database setup</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/overview/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Big picture</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/dns-records/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">DNS records</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/tls-certificate/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">TLS certificate</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/postfix/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Postfix</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/dovecot/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Dovecot</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/lmtp/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">LMTP</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/webmail/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Webmail using Roundcube</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/relaying/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Sending / Relaying</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/imap/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">IMAP</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/managing-users-aliases-and-domains/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Managing users, aliases and domains</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/catching-spam-with-rspamd/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Catching spam with rspamd</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/anti-spoofing-dkim-spf/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Prevent spoofing using DKIM and SPF</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/catch-all/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Catch-all addresses</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/quotas/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Quotas</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/going-live/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Going live</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-trixie/automated-installation/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Automated installation</span> </a> </li> </ul> </details> </li><li class="astro-3ii7xxms"> <details open class="astro-3ii7xxms"> <sl-sidebar-restore data-index="1"></sl-sidebar-restore> <summary class="astro-3ii7xxms"> <span class="group-label astro-3ii7xxms"> <span class="large astro-3ii7xxms">ISPmail for Debian 12</span> </span> <svg aria-hidden="true" class="caret astro-3ii7xxms astro-c6vsoqas" width="16" height="16" viewBox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.25rem;"><path d="m14.83 11.29-4.24-4.24a1 1 0 1 0-1.42 1.41L12.71 12l-3.54 3.54a1 1 0 0 0 0 1.41 1 1 0 0 0 .71.29 1 1 0 0 0 .71-.29l4.24-4.24a1.002 1.002 0 0 0 0-1.42Z"/></svg> </summary> <ul class="astro-3ii7xxms"> <li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Start here</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/whats-new/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">What&#39;s new</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/migrating-from-a-bullseye-to-a-bookworm-server/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Migrating from your old (Bullseye) server</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/big-picture/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">The big picture</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/types-of-email-domains/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Types of email domains</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/install-debian-bookworm-on-your-server/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Installing Debian</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/install-the-software-packages/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Install software packages</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/creating-a-tls-encryption-key-and-certificate/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">TLS certificate</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/prepare-the-database/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Preparing the database</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/making-postfix-get-its-information-from-the-mariadb-database/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Let Postfix access MariaDB</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/catchall-aliases/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Catch-all aliases</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/setting-up-dovecot/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Setting up Dovecot</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/let-postfix-send-emails-to-dovecot/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Let Postfix send emails to Dovecot</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/quotas/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Quotas</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/testing-imap/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Testing IMAP</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/webmail-using-roundcube/" aria-current="page" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Webmail using Roundcube</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/testing-email-delivery/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Testing email delivery</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/relaying-outgoing-emails-through-postfix/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Relaying outgoing emails through Postfix</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/catching-spam-with-rspamd/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Catching spam with rspamd</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/setting-dns-records/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Setting DNS records</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/prevent-spoofing-using-dkim/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Prevent spoofing using DKIM</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/managing-users-aliases-and-domains/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Managing users, aliases and domains</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/monitoring-and-backup/" aria-current="false" class="astro-3ii7xxms"> <span class="astro-3ii7xxms">Monitoring and Backup</span> </a> </li><li class="astro-3ii7xxms"> <a href="/ispmail-bookworm/automatic-installation-with-ansible/" aria-current="false" 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⚠️ This page is part of the ISPmail guide for Debian Bookworm. Please use the newer guide for <a href="/ispmail-trixie/" class="astro-kggsjsm4">Debian Trixie</a>.
</section> <div class="content-panel astro-7nkwcw3z"> <div class="sl-container astro-7nkwcw3z"> <h1 id="_top" class="astro-j6tvhyss">Webmail using Roundcube</h1> </div> </div> <div class="content-panel astro-7nkwcw3z"> <div class="sl-container astro-7nkwcw3z"> <div class="sl-markdown-content"> <aside aria-label="Optional feature" class="starlight-aside starlight-aside--tip"> <p class="starlight-aside__title" aria-hidden="true"> <svg aria-hidden="true" class="starlight-aside__icon astro-c6vsoqas" width="16" height="16" viewBox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1em;"><path fill-rule="evenodd" d="M1.44 8.855v-.001l3.527-3.516c.34-.344.802-.541 1.285-.548h6.649l.947-.947c3.07-3.07 6.207-3.072 7.62-2.868a1.821 1.821 0 0 1 1.557 1.557c.204 1.413.203 4.55-2.868 7.62l-.946.946v6.649a1.845 1.845 0 0 1-.549 1.286l-3.516 3.528a1.844 1.844 0 0 1-3.11-.944l-.858-4.275-4.52-4.52-2.31-.463-1.964-.394A1.847 1.847 0 0 1 .98 10.693a1.843 1.843 0 0 1 .46-1.838Zm5.379 2.017-3.873-.776L6.32 6.733h4.638l-4.14 4.14Zm8.403-5.655c2.459-2.46 4.856-2.463 5.89-2.33.134 1.035.13 3.432-2.329 5.891l-6.71 6.71-3.561-3.56 6.71-6.711Zm-1.318 15.837-.776-3.873 4.14-4.14v4.639l-3.364 3.374Z" clip-rule="evenodd"/><path d="M9.318 18.345a.972.972 0 0 0-1.86-.561c-.482 1.435-1.687 2.204-2.934 2.619a8.22 8.22 0 0 1-1.23.302c.062-.365.157-.79.303-1.229.415-1.247 1.184-2.452 2.62-2.935a.971.971 0 1 0-.62-1.842c-.12.04-.236.084-.35.13-2.02.828-3.012 2.588-3.493 4.033a10.383 10.383 0 0 0-.51 2.845l-.001.016v.063c0 .536.434.972.97.972H2.24a7.21 7.21 0 0 0 .878-.065c.527-.063 1.248-.19 2.02-.447 1.445-.48 3.205-1.472 4.033-3.494a5.828 5.828 0 0 0 .147-.407Z"/></svg>Optional feature </p> <div class="starlight-aside__content"> <p>This feature is completely optional. If you are eager to get finished then skip this page and maybe come back later. You can still access your mail server using a mail user agent like Thunderbird.</p> </div> </aside>
<p>Power users may still want to use a mail client like Thunderbird. But most users nowadays seem to prefer reading their emails in the web browser. Let us install a web application for that purpose: <a href="https://roundcube.net/">Roundcube</a>. Roundcube is the software that was also used in the previous versions of this guide. So if your users are used to it… just stay with it.</p>
<div class="sl-heading-wrapper level-h2"><h2 id="installation">Installation</h2><a class="sl-anchor-link" href="#installation"><span aria-hidden="true" class="sl-anchor-icon"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span><span class="sr-only">Section titled “Installation”</span></a></div>
<p>Start by installing the software packages:</p>
<div class="expressive-code"><link rel="stylesheet" href="/_astro/ec.v4551.css"><script type="module" src="/_astro/ec.0vx5m.js"></script><figure class="frame not-content"><figcaption class="header"></figcaption><pre data-language="plaintext"><code><div class="ec-line"><div class="code"><span style="--0:#d6deeb;--1:#403f53">apt install -y roundcube roundcube-plugins \</span></div></div><div class="ec-line"><div class="code"><span class="indent"><span style="--0:#d6deeb;--1:#403f53"> </span></span><span style="--0:#d6deeb;--1:#403f53">roundcube-plugins-extra roundcube-mysql</span></div></div></code></pre><div class="copy"><div aria-live="polite"></div><button title="Copy to clipboard" data-copied="Copied!" data-code="apt install -y roundcube roundcube-plugins \ roundcube-plugins-extra roundcube-mysql"><div></div></button></div></figure></div>
<p>Roundcube stores user settings in the database. So you will get asked to set up database access:</p>
<p><img src="/_astro/webmail-roundcube-db-setup1.Cb-g6XRP_1FOiAw.webp" alt="Debconf asking whether you want to have the database set up for you" loading="lazy" decoding="async" fetchpriority="auto" width="907" height="325"></p>
<p>Choose Yes.</p>
<p>When asked for a password just press <em>ENTER</em>.</p>
<p><img src="/_astro/webmail-roundcube-db-setup2.CrtFh7Aq_Z25abMs.webp" alt="Debconf asking for the database password" loading="lazy" decoding="async" fetchpriority="auto" width="749" height="211"></p>
<div class="sl-heading-wrapper level-h2"><h2 id="configure-apache">Configure Apache</h2><a class="sl-anchor-link" href="#configure-apache"><span aria-hidden="true" class="sl-anchor-icon"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span><span class="sr-only">Section titled “Configure Apache”</span></a></div>
<p>Do you remember that earlier in this guide I asked you how want to name your mail server? Whether you want to use one common name like “webmail.example.org” for all your domains? Or if you prefer different host names for each domain like “webmail.domain1.com” and “webmail.domain2.com”? If you want to use just more then you will have to create one virtual host configuration per domain. The following instructions will just deal with one common host name.</p>
<p>To get Apache to serve the Roundcube application you need to edit the <tt>/etc/apache2/sites-available/<strong>webmail.example.org</strong>-https.conf</tt> file. I suggest you change the <code dir="auto">DocumentRoot</code> line to:</p>
<div class="expressive-code"><figure class="frame not-content"><figcaption class="header"></figcaption><pre data-language="plaintext"><code><div class="ec-line"><div class="code"><span style="--0:#d6deeb;--1:#403f53">DocumentRoot /var/lib/roundcube/public_html</span></div></div></code></pre><div class="copy"><div aria-live="polite"></div><button title="Copy to clipboard" data-copied="Copied!" data-code="DocumentRoot /var/lib/roundcube/public_html"><div></div></button></div></figure></div>
<p>All URLs are relative to that directory. So if you go to <code dir="auto">https://webmail.example.com/</code> then files are looked up in that directory.</p>
<p>Also add this line within the same <code dir="auto">VirtualHost</code> section to add a couple of prepared security settings:</p>
<div class="expressive-code"><figure class="frame not-content"><figcaption class="header"></figcaption><pre data-language="plaintext"><code><div class="ec-line"><div class="code"><span style="--0:#d6deeb;--1:#403f53">Include /etc/roundcube/apache.conf</span></div></div></code></pre><div class="copy"><div aria-live="polite"></div><button title="Copy to clipboard" data-copied="Copied!" data-code="Include /etc/roundcube/apache.conf"><div></div></button></div></figure></div>
<p>And as usual Apache needs to be restarted after the configuration change:</p>
<div class="expressive-code"><figure class="frame not-content"><figcaption class="header"></figcaption><pre data-language="plaintext"><code><div class="ec-line"><div class="code"><span style="--0:#d6deeb;--1:#403f53">systemctl restart apache2</span></div></div></code></pre><div class="copy"><div aria-live="polite"></div><button title="Copy to clipboard" data-copied="Copied!" data-code="systemctl restart apache2"><div></div></button></div></figure></div>
<p>Check that Apache is running properly:</p>
<div class="expressive-code"><figure class="frame not-content"><figcaption class="header"></figcaption><pre data-language="plaintext"><code><div class="ec-line"><div class="code"><span style="--0:#d6deeb;--1:#403f53">systemctl status apache2</span></div></div></code></pre><div class="copy"><div aria-live="polite"></div><button title="Copy to clipboard" data-copied="Copied!" data-code="systemctl status apache2"><div></div></button></div></figure></div>
<p>In case of a problem run “<code dir="auto">apache2ctl configtest</code>” to find the cause.</p>
<div class="sl-heading-wrapper level-h2"><h2 id="limit-access-to-localhost">Limit access to localhost</h2><a class="sl-anchor-link" href="#limit-access-to-localhost"><span aria-hidden="true" class="sl-anchor-icon"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span><span class="sr-only">Section titled “Limit access to localhost”</span></a></div>
<p>The main configuration file of Roundcube is located at <code dir="auto">/etc/roundcube/config.inc.php</code>. Feel free to customize the file. Fortunately nowadays the basic settings are already as we need them. However these two settings need to be changed by you:</p>
<div class="expressive-code"><figure class="frame not-content"><figcaption class="header"></figcaption><pre data-language="plaintext"><code><div class="ec-line"><div class="code"><span style="--0:#d6deeb;--1:#403f53">$config['imap_host'] = "tls://webmail.example.org:143";</span></div></div><div class="ec-line"><div class="code"><span style="--0:#d6deeb;--1:#403f53">$config['smtp_host'] = 'tls://webmail.example.org:587';</span></div></div></code></pre><div class="copy"><div aria-live="polite"></div><button title="Copy to clipboard" data-copied="Copied!" data-code="$config[&#x27;imap_host&#x27;] = &#x22;tls://webmail.example.org:143&#x22;;$config[&#x27;smtp_host&#x27;] = &#x27;tls://webmail.example.org:587&#x27;;"><div></div></button></div></figure></div>
<p>So now when your users enter <code dir="auto">https://webmail.example.org/</code> in their browser they should get the Roundcube login form:</p>
<p><img src="/_astro/roundcube-login-dialog.BP0-utAA_ZXQDm2.webp" alt="Roundcube login dialog" loading="lazy" decoding="async" fetchpriority="auto" width="349" height="338"></p>
<p>Keep in mind that we are using the email address as the account name of the user. So when logging in please enter the email address as the user name. E.g. <a href="mailto:john@example.org">john@example.org</a> and password summersun.</p>
<aside aria-label="Login failed? Storage server cant be reached?" class="starlight-aside starlight-aside--tip"> <p class="starlight-aside__title" aria-hidden="true"> <svg aria-hidden="true" class="starlight-aside__icon astro-c6vsoqas" width="16" height="16" viewBox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1em;"><path fill-rule="evenodd" d="M1.44 8.855v-.001l3.527-3.516c.34-.344.802-.541 1.285-.548h6.649l.947-.947c3.07-3.07 6.207-3.072 7.62-2.868a1.821 1.821 0 0 1 1.557 1.557c.204 1.413.203 4.55-2.868 7.62l-.946.946v6.649a1.845 1.845 0 0 1-.549 1.286l-3.516 3.528a1.844 1.844 0 0 1-3.11-.944l-.858-4.275-4.52-4.52-2.31-.463-1.964-.394A1.847 1.847 0 0 1 .98 10.693a1.843 1.843 0 0 1 .46-1.838Zm5.379 2.017-3.873-.776L6.32 6.733h4.638l-4.14 4.14Zm8.403-5.655c2.459-2.46 4.856-2.463 5.89-2.33.134 1.035.13 3.432-2.329 5.891l-6.71 6.71-3.561-3.56 6.71-6.711Zm-1.318 15.837-.776-3.873 4.14-4.14v4.639l-3.364 3.374Z" clip-rule="evenodd"/><path d="M9.318 18.345a.972.972 0 0 0-1.86-.561c-.482 1.435-1.687 2.204-2.934 2.619a8.22 8.22 0 0 1-1.23.302c.062-.365.157-.79.303-1.229.415-1.247 1.184-2.452 2.62-2.935a.971.971 0 1 0-.62-1.842c-.12.04-.236.084-.35.13-2.02.828-3.012 2.588-3.493 4.033a10.383 10.383 0 0 0-.51 2.845l-.001.016v.063c0 .536.434.972.97.972H2.24a7.21 7.21 0 0 0 .878-.065c.527-.063 1.248-.19 2.02-.447 1.445-.48 3.205-1.472 4.033-3.494a5.828 5.828 0 0 0 .147-.407Z"/></svg>Login failed? Storage server cant be reached? </p> <div class="starlight-aside__content"> <p>In that case please double check your Dovecot 10-ssl.conf file if you set the path to your Lets Encrypt certificate correctly. Also check the /var/lib/roundcube/logs/errors.log file for errors.</p> </div> </aside>
<div class="sl-heading-wrapper level-h2"><h2 id="plugins">Plugins</h2><a class="sl-anchor-link" href="#plugins"><span aria-hidden="true" class="sl-anchor-icon"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span><span class="sr-only">Section titled “Plugins”</span></a></div>
<p>Roundcube comes with various plugins that you can offer your users. I recommend at least these two:</p>
<ul>
<li>password: Let the user change their access password.</li>
<li>managesieve: Let the user manage rules that apply to incoming email. They can move mails to specific folders automatically for example.</li>
</ul>
<p>Again edit the <code dir="auto">/etc/roundcube/config.inc.php</code> file and look for the <em>plugins</em> configuration. To enable the recommended plugins change it to:</p>
<div class="expressive-code"><figure class="frame not-content"><figcaption class="header"></figcaption><pre data-language="plaintext"><code><div class="ec-line"><div class="code"><span style="--0:#d6deeb;--1:#403f53">$config['plugins'] = array(</span></div></div><div class="ec-line"><div class="code"><span class="indent"><span style="--0:#d6deeb;--1:#403f53"> </span></span><span style="--0:#d6deeb;--1:#403f53">'managesieve',</span></div></div><div class="ec-line"><div class="code"><span class="indent"><span style="--0:#d6deeb;--1:#403f53"> </span></span><span style="--0:#d6deeb;--1:#403f53">'password',</span></div></div><div class="ec-line"><div class="code"><span class="indent"><span style="--0:#d6deeb;--1:#403f53"> </span></span><span style="--0:#d6deeb;--1:#403f53">);</span></div></div></code></pre><div class="copy"><div aria-live="polite"></div><button title="Copy to clipboard" data-copied="Copied!" data-code="$config[&#x27;plugins&#x27;] = array( &#x27;managesieve&#x27;, &#x27;password&#x27;, );"><div></div></button></div></figure></div>
<div class="sl-heading-wrapper level-h3"><h3 id="password-plugin">password plugin</h3><a class="sl-anchor-link" href="#password-plugin"><span aria-hidden="true" class="sl-anchor-icon"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span><span class="sr-only">Section titled “password plugin”</span></a></div>
<p>Plugins are configured through files located in the <code dir="auto">/etc/roundcube/plugins</code> directory. Lets begin with the password plugin. Edit the <code dir="auto">/etc/roundcube/plugins/password/config.inc.php</code> file.</p>
<p>Oops, that file looks pretty empty. But it refers us to an example file at <code dir="auto">/usr/share/roundcube/plugins/password/config.inc.php.dist</code>. There are many different methods to let users change their passwords. As we store that information in the SQL database, that is the part we need to set up.</p>
<aside aria-label="No more doveadm" class="starlight-aside starlight-aside--tip"> <p class="starlight-aside__title" aria-hidden="true"> <svg aria-hidden="true" class="starlight-aside__icon astro-c6vsoqas" width="16" height="16" viewBox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1em;"><path fill-rule="evenodd" d="M1.44 8.855v-.001l3.527-3.516c.34-.344.802-.541 1.285-.548h6.649l.947-.947c3.07-3.07 6.207-3.072 7.62-2.868a1.821 1.821 0 0 1 1.557 1.557c.204 1.413.203 4.55-2.868 7.62l-.946.946v6.649a1.845 1.845 0 0 1-.549 1.286l-3.516 3.528a1.844 1.844 0 0 1-3.11-.944l-.858-4.275-4.52-4.52-2.31-.463-1.964-.394A1.847 1.847 0 0 1 .98 10.693a1.843 1.843 0 0 1 .46-1.838Zm5.379 2.017-3.873-.776L6.32 6.733h4.638l-4.14 4.14Zm8.403-5.655c2.459-2.46 4.856-2.463 5.89-2.33.134 1.035.13 3.432-2.329 5.891l-6.71 6.71-3.561-3.56 6.71-6.711Zm-1.318 15.837-.776-3.873 4.14-4.14v4.639l-3.364 3.374Z" clip-rule="evenodd"/><path d="M9.318 18.345a.972.972 0 0 0-1.86-.561c-.482 1.435-1.687 2.204-2.934 2.619a8.22 8.22 0 0 1-1.23.302c.062-.365.157-.79.303-1.229.415-1.247 1.184-2.452 2.62-2.935a.971.971 0 1 0-.62-1.842c-.12.04-.236.084-.35.13-2.02.828-3.012 2.588-3.493 4.033a10.383 10.383 0 0 0-.51 2.845l-.001.016v.063c0 .536.434.972.97.972H2.24a7.21 7.21 0 0 0 .878-.065c.527-.063 1.248-.19 2.02-.447 1.445-.48 3.205-1.472 4.033-3.494a5.828 5.828 0 0 0 .147-.407Z"/></svg>No more doveadm </p> <div class="starlight-aside__content"> <p>In previous versions of this guide I used the “doveadm pw” command to generate passwords. This is no longer needed. Roundcube can now generate the passwords in the right format to be understood by Dovecot.</p> </div> </aside>
<p>Remove the empty definition line of $config from your <code dir="auto">config.inc.php</code> file. Lets go through the required settings one by one:</p>
<ul>
<li><code dir="auto">$config['password_driver'] = 'sql';</code><br>
Simple. Use SQL as a backend.</li>
<li><code dir="auto">$config['password_minimum_length'] = 12;</code><br>
Allow no passwords shorter than 12 characters. I consider longer passwords more secure than short passwords with weird characters. You can even choose a larger minimum.</li>
<li><code dir="auto">$config['password_force_save'] = true;</code><br>
This will overwrite the password in the database even if it hasnt changed. It helps us improve the strength of the password hash by re-encoding it with a better algorithm even if the user chooses to keep his old password.</li>
<li><code dir="auto">$config['password_algorithm'] = 'blowfish-crypt';</code><br>
The cryptographic algorithm to encode the password. This one is considered very secure and supported by Dovecot.</li>
<li><code dir="auto">$config['password_algorithm_prefix'] = '{CRYPT}';</code><br>
Prepend every password with this string so that Dovecot knows how we encrypted the password.</li>
<li><code dir="auto">$config['password_db_dsn'] = 'mysql://mailadmin:gefk6lA2brMOeb8eR5WYaMEdKDQfnF@localhost/mailserver';</code><br>
Connection information for the local database. Use your own password for the <em>mailadmin</em> (!) database user here. We cannot use the restricted <em>mailserver</em> user because we have to write to the database if the user changes his password.</li>
<li><code dir="auto">$config['password_query'] = "UPDATE virtual_users SET password=%P WHERE email=%u";</code><br>
The SQL query that is run to write the new password hash into the database. %P is a placeholder for the new password hash. And %u is the logged-in user and conveniently matches the email address.</li>
</ul>
<p>Make sure that this config file is not world-readable:</p>
<div class="expressive-code"><figure class="frame not-content"><figcaption class="header"></figcaption><pre data-language="plaintext"><code><div class="ec-line"><div class="code"><span style="--0:#d6deeb;--1:#403f53">chown root:www-data /etc/roundcube/plugins/password/config.inc.php</span></div></div><div class="ec-line"><div class="code"><span style="--0:#d6deeb;--1:#403f53">chmod u=rw,g=r,o= /etc/roundcube/plugins/password/config.inc.php</span></div></div></code></pre><div class="copy"><div aria-live="polite"></div><button title="Copy to clipboard" data-copied="Copied!" data-code="chown root:www-data /etc/roundcube/plugins/password/config.inc.phpchmod u=rw,g=r,o= /etc/roundcube/plugins/password/config.inc.php"><div></div></button></div></figure></div>
<p>Try it. Log into Roundcube as <code dir="auto">john@example.org</code> with password summersun. Go to the <em>Settings</em>. Choose <em>Password</em>. Enter a new password twice. You should get a success message at the bottom right. Now logout and login with the new password. Does it work? Great.</p>
<div class="sl-heading-wrapper level-h3"><h3 id="sieve-plugin">sieve plugin</h3><a class="sl-anchor-link" href="#sieve-plugin"><span aria-hidden="true" class="sl-anchor-icon"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span><span class="sr-only">Section titled “sieve plugin”</span></a></div>
<p><a href="https://en.wikipedia.org/wiki/Sieve_(mail_filtering_language)">Sieve</a> is a simple programming language to be used for server-side rules. Dovecot executes these rules every time a new email comes in. There are global rules that are executed for every email. And of course every user/mailbox can have its own rules. To manage sieve rules Dovecot offers the <em>managesieve</em> interface that you enabled earlier. So we just need to tell Roundcube how to access it.</p>
<p>The configuration file for Roundcubes <em>managesieve</em> plugin is found at <code dir="auto">/etc/roundcube/plugins/managesieve/config.inc.php</code>. Edit the file and again remove the empty or comment the <code dir="auto">$config</code> line. You can again find all possible configuration options in the <code dir="auto">/usr/share/roundcube/plugins/managesieve/config.inc.php.dist</code> file.</p>
<p>This time just one setting is required to tell Roundcube which server to talk to:</p>
<div class="expressive-code"><figure class="frame not-content"><figcaption class="header"></figcaption><pre data-language="plaintext"><code><div class="ec-line"><div class="code"><span style="--0:#d6deeb;--1:#403f53">$config['managesieve_host'] = 'localhost';</span></div></div></code></pre><div class="copy"><div aria-live="polite"></div><button title="Copy to clipboard" data-copied="Copied!" data-code="$config[&#x27;managesieve_host&#x27;] = &#x27;localhost&#x27;;"><div></div></button></div></figure></div>
<p>Sieve rules are stored in a special syntax on the server. This is an example that moves all incoming emails to the <em>test</em> folder that have “test” in the subject:</p>
<div class="expressive-code"><figure class="frame not-content"><figcaption class="header"></figcaption><pre data-language="plaintext"><code><div class="ec-line"><div class="code"><span style="--0:#d6deeb;--1:#403f53">require ["fileinto"];</span></div></div><div class="ec-line"><div class="code"><span style="--0:#d6deeb;--1:#403f53">if header :contains "subject" "test"</span></div></div><div class="ec-line"><div class="code"><span style="--0:#d6deeb;--1:#403f53">{</span></div></div><div class="ec-line"><div class="code"><span class="indent"><span style="--0:#d6deeb;--1:#403f53"> </span></span><span style="--0:#d6deeb;--1:#403f53">fileinto "INBOX/test";</span></div></div><div class="ec-line"><div class="code"><span style="--0:#d6deeb;--1:#403f53">}</span></div></div></code></pre><div class="copy"><div aria-live="polite"></div><button title="Copy to clipboard" data-copied="Copied!" data-code="require [&#x22;fileinto&#x22;];if header :contains &#x22;subject&#x22; &#x22;test&#x22;{ fileinto &#x22;INBOX/test&#x22;;}"><div></div></button></div></figure></div>
<p>You do not need to learn this syntax though. Roundcubes sieve rule editor is way more user-friendly.</p>
<p>Try adding a sieve rule for <code dir="auto">john@example.org</code> in Roundcube. That feature is located in Settings/Filters. You will find the machine-readable sieve code at <code dir="auto">/var/vmail/example.org/john/sieve/roundcube.sieve</code>.</p>
<p>The rule editor looks like this:</p>
<p><img src="/_astro/webmail-roundcube-sieve-editor.CsDSURc3_1MiegR.webp" alt="Roundcube's sieve rule editor" loading="lazy" decoding="async" fetchpriority="auto" width="1024" height="318"></p> </div> <footer> <footer class="sl-flex astro-3yyafb3n"> <div class="meta sl-flex astro-3yyafb3n"> <p>Last updated: <time datetime="2023-10-04T00:00:00.000Z">Oct 4, 2023</time></p> </div> <div class="pagination-links print:hidden astro-u2l5gyhi" dir="ltr"> <a href="/ispmail-bookworm/testing-imap/" rel="prev" class="astro-u2l5gyhi"> <svg aria-hidden="true" class="astro-u2l5gyhi astro-c6vsoqas" width="16" height="16" viewBox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.5rem;"><path d="M17 11H9.41l3.3-3.29a1.004 1.004 0 1 0-1.42-1.42l-5 5a1 1 0 0 0-.21.33 1 1 0 0 0 0 .76 1 1 0 0 0 .21.33l5 5a1.002 1.002 0 0 0 1.639-.325 1 1 0 0 0-.219-1.095L9.41 13H17a1 1 0 0 0 0-2Z"/></svg> <span class="astro-u2l5gyhi"> Previous <br class="astro-u2l5gyhi"> <span class="link-title astro-u2l5gyhi">Testing IMAP</span> </span> </a> <a href="/ispmail-bookworm/testing-email-delivery/" rel="next" class="astro-u2l5gyhi"> <svg aria-hidden="true" class="astro-u2l5gyhi astro-c6vsoqas" width="16" height="16" viewBox="0 0 24 24" fill="currentColor" style="--sl-icon-size: 1.5rem;"><path d="M17.92 11.62a1.001 1.001 0 0 0-.21-.33l-5-5a1.003 1.003 0 1 0-1.42 1.42l3.3 3.29H7a1 1 0 0 0 0 2h7.59l-3.3 3.29a1.002 1.002 0 0 0 .325 1.639 1 1 0 0 0 1.095-.219l5-5a1 1 0 0 0 .21-.33 1 1 0 0 0 0-.76Z"/></svg> <span class="astro-u2l5gyhi"> Next <br class="astro-u2l5gyhi"> <span class="link-title astro-u2l5gyhi">Testing email delivery</span> </span> </a> </div> </footer> <script defer src="https://comentario.workaround.org/comentario.js"></script>
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