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        Mail crypt
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        More Examples with DOVEADM
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      <a href="../../Dovecot/u_e-dovecot-vmail-volume/" class="md-nav__link">
        Move Maildir (vmail)
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        Performance Optimizations
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        Public folders
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        Vacation replies for catchall addresses
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  <h1>Rspamd</h1>

<p>Rspamd is used for AV handling, DKIM signing and SPAM handling. It's a powerful and fast filter system. For a more in-depth documentation on Rspamd please visit its <a href="https://rspamd.com/doc/index.html">own documentation</a>.</p>
<h2 id="learn-spam-ham">Learn Spam &amp; Ham<a class="headerlink" href="#learn-spam-ham" title="Permanent link">&para;</a></h2>
<p>Rspamd learns mail as spam or ham when you move a message in or out of the junk folder to any mailbox besides trash.
This is achieved by using the Sieve plugin "sieve_imapsieve" and parser scripts.</p>
<p>Rspamd also auto-learns mail when a high or low score is detected (see <a href="https://rspamd.com/doc/configuration/statistic.html#autolearning">https://rspamd.com/doc/configuration/statistic.html#autolearning</a>). We configured the plugin to keep a sane ratio between spam and ham learns.</p>
<p>The bayes statistics are written to Redis as keys <code>BAYES_HAM</code> and <code>BAYES_SPAM</code>.</p>
<p>Besides bayes, a local fuzzy storage is used to learn recurring patterns in text or images that indicate ham or spam.</p>
<p>You can also use Rspamd's web UI to learn ham and / or spam or to adjust certain settings of Rspamd.</p>
<h3 id="learn-spam-or-ham-from-existing-directory">Learn Spam or Ham from existing directory<a class="headerlink" href="#learn-spam-or-ham-from-existing-directory" title="Permanent link">&para;</a></h3>
<p>You can use a one-liner to learn mail in plain-text (uncompressed) format:</p>
<div class="tabbed-set tabbed-alternate" data-tabs="1:2"><input checked="checked" id="__tabbed_1_1" name="__tabbed_1" type="radio" /><input id="__tabbed_1_2" name="__tabbed_1" type="radio" /><div class="tabbed-labels"><label for="__tabbed_1_1">docker compose (Plugin)</label><label for="__tabbed_1_2">docker-compose (Standalone)</label></div>
<div class="tabbed-content">
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code><span class="c1"># Ham</span>
<span class="k">for</span><span class="w"> </span>file<span class="w"> </span><span class="k">in</span><span class="w"> </span>/my/folder/cur/*<span class="p">;</span><span class="w"> </span><span class="k">do</span><span class="w"> </span>docker<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>-i<span class="w"> </span><span class="k">$(</span>docker<span class="w"> </span>compose<span class="w"> </span>ps<span class="w"> </span>-q<span class="w"> </span>rspamd-mailcow<span class="k">)</span><span class="w"> </span>rspamc<span class="w"> </span>learn_ham<span class="w"> </span>&lt;<span class="w"> </span><span class="nv">$file</span><span class="p">;</span><span class="w"> </span><span class="k">done</span>
<span class="c1"># Spam</span>
<span class="k">for</span><span class="w"> </span>file<span class="w"> </span><span class="k">in</span><span class="w"> </span>/my/folder/.Junk/cur/*<span class="p">;</span><span class="w"> </span><span class="k">do</span><span class="w"> </span>docker<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>-i<span class="w"> </span><span class="k">$(</span>docker<span class="w"> </span>compose<span class="w"> </span>ps<span class="w"> </span>-q<span class="w"> </span>rspamd-mailcow<span class="k">)</span><span class="w"> </span>rspamc<span class="w"> </span>learn_spam<span class="w"> </span>&lt;<span class="w"> </span><span class="nv">$file</span><span class="p">;</span><span class="w"> </span><span class="k">done</span>
</code></pre></div>
</div>
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code><span class="c1"># Ham</span>
<span class="k">for</span><span class="w"> </span>file<span class="w"> </span><span class="k">in</span><span class="w"> </span>/my/folder/cur/*<span class="p">;</span><span class="w"> </span><span class="k">do</span><span class="w"> </span>docker<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>-i<span class="w"> </span><span class="k">$(</span>docker-compose<span class="w"> </span>ps<span class="w"> </span>-q<span class="w"> </span>rspamd-mailcow<span class="k">)</span><span class="w"> </span>rspamc<span class="w"> </span>learn_ham<span class="w"> </span>&lt;<span class="w"> </span><span class="nv">$file</span><span class="p">;</span><span class="w"> </span><span class="k">done</span>
<span class="c1"># Spam</span>
<span class="k">for</span><span class="w"> </span>file<span class="w"> </span><span class="k">in</span><span class="w"> </span>/my/folder/.Junk/cur/*<span class="p">;</span><span class="w"> </span><span class="k">do</span><span class="w"> </span>docker<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>-i<span class="w"> </span><span class="k">$(</span>docker-compose<span class="w"> </span>ps<span class="w"> </span>-q<span class="w"> </span>rspamd-mailcow<span class="k">)</span><span class="w"> </span>rspamc<span class="w"> </span>learn_spam<span class="w"> </span>&lt;<span class="w"> </span><span class="nv">$file</span><span class="p">;</span><span class="w"> </span><span class="k">done</span>
</code></pre></div>
</div>
</div>
</div>
<p>Consider attaching a local folder as new volume to <code>rspamd-mailcow</code> in <code>docker-compose.yml</code> and learn given files inside the container. This can be used as workaround to parse compressed data with zcat. Example:</p>
<div class="highlight"><pre><span></span><code><span class="k">for</span><span class="w"> </span>file<span class="w"> </span><span class="k">in</span><span class="w"> </span>/data/old_mail/.Junk/cur/*<span class="p">;</span><span class="w"> </span><span class="k">do</span><span class="w"> </span>rspamc<span class="w"> </span>learn_spam<span class="w"> </span>&lt;<span class="w"> </span>zcat<span class="w"> </span><span class="nv">$file</span><span class="p">;</span><span class="w"> </span><span class="k">done</span>
</code></pre></div>
<h3 id="reset-learned-data-bayes-neural">Reset learned data (Bayes, Neural)<a class="headerlink" href="#reset-learned-data-bayes-neural" title="Permanent link">&para;</a></h3>
<p>You need to delete keys in Redis to reset learned data, so create a copy of your Redis database now:</p>
<p><strong>Backup database</strong></p>
<div class="highlight"><pre><span></span><code><span class="c1"># It is better to stop Redis before you copy the file.</span>
cp<span class="w"> </span>/var/lib/docker/volumes/mailcowdockerized_redis-vol-1/_data/dump.rdb<span class="w"> </span>/root/
</code></pre></div>
<p><strong>Reset Bayes data</strong></p>
<div class="tabbed-set tabbed-alternate" data-tabs="2:2"><input checked="checked" id="__tabbed_2_1" name="__tabbed_2" type="radio" /><input id="__tabbed_2_2" name="__tabbed_2" type="radio" /><div class="tabbed-labels"><label for="__tabbed_2_1">docker compose (Plugin)</label><label for="__tabbed_2_2">docker-compose (Standalone)</label></div>
<div class="tabbed-content">
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>redis-mailcow<span class="w"> </span>sh<span class="w"> </span>-c<span class="w"> </span><span class="s1">&#39;redis-cli --scan --pattern BAYES_* | xargs redis-cli del&#39;</span>
docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>redis-mailcow<span class="w"> </span>sh<span class="w"> </span>-c<span class="w"> </span><span class="s1">&#39;redis-cli --scan --pattern RS* | xargs redis-cli del&#39;</span>
</code></pre></div>
</div>
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker-compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>redis-mailcow<span class="w"> </span>sh<span class="w"> </span>-c<span class="w"> </span><span class="s1">&#39;redis-cli --scan --pattern BAYES_* | xargs redis-cli del&#39;</span>
docker-compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>redis-mailcow<span class="w"> </span>sh<span class="w"> </span>-c<span class="w"> </span><span class="s1">&#39;redis-cli --scan --pattern RS* | xargs redis-cli del&#39;</span>
</code></pre></div>
</div>
</div>
</div>
<p><strong>Reset Neural data</strong></p>
<div class="tabbed-set tabbed-alternate" data-tabs="3:2"><input checked="checked" id="__tabbed_3_1" name="__tabbed_3" type="radio" /><input id="__tabbed_3_2" name="__tabbed_3" type="radio" /><div class="tabbed-labels"><label for="__tabbed_3_1">docker compose (Plugin)</label><label for="__tabbed_3_2">docker-compose (Standalone)</label></div>
<div class="tabbed-content">
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>redis-mailcow<span class="w"> </span>sh<span class="w"> </span>-c<span class="w"> </span><span class="s1">&#39;redis-cli --scan --pattern rn_* | xargs redis-cli del&#39;</span>
</code></pre></div>
</div>
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker-compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>redis-mailcow<span class="w"> </span>sh<span class="w"> </span>-c<span class="w"> </span><span class="s1">&#39;redis-cli --scan --pattern rn_* | xargs redis-cli del&#39;</span>
</code></pre></div>
</div>
</div>
</div>
<p><strong>Reset Fuzzy data</strong></p>
<div class="tabbed-set tabbed-alternate" data-tabs="4:2"><input checked="checked" id="__tabbed_4_1" name="__tabbed_4" type="radio" /><input id="__tabbed_4_2" name="__tabbed_4" type="radio" /><div class="tabbed-labels"><label for="__tabbed_4_1">docker compose (Plugin)</label><label for="__tabbed_4_2">docker-compose (Standalone)</label></div>
<div class="tabbed-content">
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code><span class="c1"># We need to enter the redis-cli first:</span>
docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>redis-mailcow<span class="w"> </span>redis-cli
<span class="c1"># In redis-cli:</span>
<span class="m">127</span>.0.0.1:6379&gt;<span class="w"> </span>EVAL<span class="w"> </span><span class="s2">&quot;for i, name in ipairs(redis.call(&#39;KEYS&#39;, ARGV[1])) do redis.call(&#39;DEL&#39;, name); end&quot;</span><span class="w"> </span><span class="m">0</span><span class="w"> </span>fuzzy*
</code></pre></div>
</div>
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code><span class="c1"># We need to enter the redis-cli first:</span>
docker-compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>redis-mailcow<span class="w"> </span>redis-cli
<span class="c1"># In redis-cli:</span>
<span class="m">127</span>.0.0.1:6379&gt;<span class="w"> </span>EVAL<span class="w"> </span><span class="s2">&quot;for i, name in ipairs(redis.call(&#39;KEYS&#39;, ARGV[1])) do redis.call(&#39;DEL&#39;, name); end&quot;</span><span class="w"> </span><span class="m">0</span><span class="w"> </span>fuzzy*
</code></pre></div>
</div>
</div>
</div>
<p><strong>Info</strong></p>
<p>If redis-cli complains about...</p>
<div class="highlight"><pre><span></span><code>(error) ERR wrong number of arguments for &#39;del&#39; command
</code></pre></div>
<p>...the key pattern was not found and thus no data is available to delete - it is fine.</p>
<h2 id="cli-tools">CLI tools<a class="headerlink" href="#cli-tools" title="Permanent link">&para;</a></h2>
<div class="tabbed-set tabbed-alternate" data-tabs="5:2"><input checked="checked" id="__tabbed_5_1" name="__tabbed_5" type="radio" /><input id="__tabbed_5_2" name="__tabbed_5" type="radio" /><div class="tabbed-labels"><label for="__tabbed_5_1">docker compose (Plugin)</label><label for="__tabbed_5_2">docker-compose (Standalone)</label></div>
<div class="tabbed-content">
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>rspamd-mailcow<span class="w"> </span>rspamc<span class="w"> </span>--help
docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>rspamd-mailcow<span class="w"> </span>rspamadm<span class="w"> </span>--help
</code></pre></div>
</div>
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker-compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>rspamd-mailcow<span class="w"> </span>rspamc<span class="w"> </span>--help
docker-compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>rspamd-mailcow<span class="w"> </span>rspamadm<span class="w"> </span>--help
</code></pre></div>
</div>
</div>
</div>
<h2 id="disable-greylisting">Disable Greylisting<a class="headerlink" href="#disable-greylisting" title="Permanent link">&para;</a></h2>
<p>Only messages with a higher score will be considered to be greylisted (soft rejected). It is bad practice to disable greylisting.</p>
<p>You can disable greylisting server-wide by editing:</p>
<p><code>{mailcow-dir}/data/conf/rspamd/local.d/greylist.conf</code></p>
<p>Add the line:</p>
<div class="highlight"><pre><span></span><code><span class="n">enabled</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">false</span><span class="p">;</span>
</code></pre></div>
<p>Save the file and restart "rspamd-mailcow":</p>
<div class="tabbed-set tabbed-alternate" data-tabs="6:2"><input checked="checked" id="__tabbed_6_1" name="__tabbed_6" type="radio" /><input id="__tabbed_6_2" name="__tabbed_6" type="radio" /><div class="tabbed-labels"><label for="__tabbed_6_1">docker compose (Plugin)</label><label for="__tabbed_6_2">docker-compose (Standalone)</label></div>
<div class="tabbed-content">
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker<span class="w"> </span>compose<span class="w"> </span>restart<span class="w"> </span>rspamd-mailcow
</code></pre></div>
</div>
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker-compose<span class="w"> </span>restart<span class="w"> </span>rspamd-mailcow
</code></pre></div>
</div>
</div>
</div>
<h2 id="spam-filter-thresholds-global">Spam filter thresholds (global)<a class="headerlink" href="#spam-filter-thresholds-global" title="Permanent link">&para;</a></h2>
<p>Each user is able to change <a href="../../mailcow-UI/u_e-mailcow_ui-spamfilter/">their spam rating individually</a>. To define a new <strong>server-wide</strong> limit, edit <code>data/conf/rspamd/local.d/actions.conf</code>:</p>
<div class="highlight"><pre><span></span><code><span class="n">reject</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">15</span><span class="p">;</span>
<span class="n">add_header</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">8</span><span class="p">;</span>
<span class="n">greylist</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">7</span><span class="p">;</span>
</code></pre></div>
<p>Save the file and restart "rspamd-mailcow":</p>
<div class="tabbed-set tabbed-alternate" data-tabs="7:2"><input checked="checked" id="__tabbed_7_1" name="__tabbed_7" type="radio" /><input id="__tabbed_7_2" name="__tabbed_7" type="radio" /><div class="tabbed-labels"><label for="__tabbed_7_1">docker compose (Plugin)</label><label for="__tabbed_7_2">docker-compose (Standalone)</label></div>
<div class="tabbed-content">
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker<span class="w"> </span>compose<span class="w"> </span>restart<span class="w"> </span>rspamd-mailcow
</code></pre></div>
</div>
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker-compose<span class="w"> </span>restart<span class="w"> </span>rspamd-mailcow
</code></pre></div>
</div>
</div>
</div>
<p>Existing settings of users will not be overwritten!</p>
<p>To reset custom defined thresholds, run:</p>
<div class="tabbed-set tabbed-alternate" data-tabs="8:2"><input checked="checked" id="__tabbed_8_1" name="__tabbed_8" type="radio" /><input id="__tabbed_8_2" name="__tabbed_8" type="radio" /><div class="tabbed-labels"><label for="__tabbed_8_1">docker compose (Plugin)</label><label for="__tabbed_8_2">docker-compose (Standalone)</label></div>
<div class="tabbed-content">
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code><span class="nb">source</span><span class="w"> </span>mailcow.conf
docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>mysql-mailcow<span class="w"> </span>mysql<span class="w"> </span>-umailcow<span class="w"> </span>-p<span class="nv">$DBPASS</span><span class="w"> </span>mailcow<span class="w"> </span>-e<span class="w"> </span><span class="s2">&quot;delete from filterconf where option = &#39;highspamlevel&#39; or option = &#39;lowspamlevel&#39;;&quot;</span>
<span class="c1"># or:</span>
docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>mysql-mailcow<span class="w"> </span>mysql<span class="w"> </span>-umailcow<span class="w"> </span>-p<span class="nv">$DBPASS</span><span class="w"> </span>mailcow<span class="w"> </span>-e<span class="w"> </span><span class="s2">&quot;delete from filterconf where option = &#39;highspamlevel&#39; or option = &#39;lowspamlevel&#39; and object = &#39;only-this-mailbox@example.org&#39;;&quot;</span>
</code></pre></div>
</div>
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code><span class="nb">source</span><span class="w"> </span>mailcow.conf
docker-compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>mysql-mailcow<span class="w"> </span>mysql<span class="w"> </span>-umailcow<span class="w"> </span>-p<span class="nv">$DBPASS</span><span class="w"> </span>mailcow<span class="w"> </span>-e<span class="w"> </span><span class="s2">&quot;delete from filterconf where option = &#39;highspamlevel&#39; or option = &#39;lowspamlevel&#39;;&quot;</span>
<span class="c1"># or:</span>
docker-compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>mysql-mailcow<span class="w"> </span>mysql<span class="w"> </span>-umailcow<span class="w"> </span>-p<span class="nv">$DBPASS</span><span class="w"> </span>mailcow<span class="w"> </span>-e<span class="w"> </span><span class="s2">&quot;delete from filterconf where option = &#39;highspamlevel&#39; or option = &#39;lowspamlevel&#39; and object = &#39;only-this-mailbox@example.org&#39;;&quot;</span>
</code></pre></div>
</div>
</div>
</div>
<h2 id="custom-reject-messages">Custom reject messages<a class="headerlink" href="#custom-reject-messages" title="Permanent link">&para;</a></h2>
<p>The default spam reject message can be changed by adding a new file <code>data/conf/rspamd/override.d/worker-proxy.custom.inc</code> with the following content:</p>
<div class="highlight"><pre><span></span><code>reject_message = &quot;My custom reject message&quot;;
</code></pre></div>
<p>Save the file and restart Rspamd:</p>
<div class="tabbed-set tabbed-alternate" data-tabs="9:2"><input checked="checked" id="__tabbed_9_1" name="__tabbed_9" type="radio" /><input id="__tabbed_9_2" name="__tabbed_9" type="radio" /><div class="tabbed-labels"><label for="__tabbed_9_1">docker compose (Plugin)</label><label for="__tabbed_9_2">docker-compose (Standalone)</label></div>
<div class="tabbed-content">
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker<span class="w"> </span>compose<span class="w"> </span>restart<span class="w"> </span>rspamd-mailcow
</code></pre></div>
</div>
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker-compose<span class="w"> </span>restart<span class="w"> </span>rspamd-mailcow
</code></pre></div>
</div>
</div>
</div>
<p>While the above works for rejected mails with a high spam score, prefilter reject actions will ignore this setting. For these maps, the multimap module in Rspamd needs to be adjusted:</p>
<ol>
<li>
<p>Find prefilet reject symbol for which you want change message, to do it run: <code>grep -R "SYMBOL_YOU_WANT_TO_ADJUST" /opt/mailcow-dockerized/data/conf/rspamd/</code></p>
</li>
<li>
<p>Add your custom message as new line:</p>
</li>
</ol>
<div class="highlight"><pre><span></span><code>GLOBAL_RCPT_BL {
  type = &quot;rcpt&quot;;
  map = &quot;${LOCAL_CONFDIR}/custom/global_rcpt_blacklist.map&quot;;
  regexp = true;
  prefilter = true;
  action = &quot;reject&quot;;
  message = &quot;Sending mail to this recipient is prohibited by postmaster@your.domain&quot;;
}
</code></pre></div>
<ol>
<li>Save the file and restart Rspamd:</li>
</ol>
<div class="tabbed-set tabbed-alternate" data-tabs="10:2"><input checked="checked" id="__tabbed_10_1" name="__tabbed_10" type="radio" /><input id="__tabbed_10_2" name="__tabbed_10" type="radio" /><div class="tabbed-labels"><label for="__tabbed_10_1">docker compose (Plugin)</label><label for="__tabbed_10_2">docker-compose (Standalone)</label></div>
<div class="tabbed-content">
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker<span class="w"> </span>compose<span class="w"> </span>restart<span class="w"> </span>rspamd-mailcow
</code></pre></div>
</div>
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker-compose<span class="w"> </span>restart<span class="w"> </span>rspamd-mailcow
</code></pre></div>
</div>
</div>
</div>
<h2 id="discard-instead-of-reject">Discard instead of reject<a class="headerlink" href="#discard-instead-of-reject" title="Permanent link">&para;</a></h2>
<p>If you want to silently drop a message, create or edit the file <code>data/conf/rspamd/override.d/worker-proxy.custom.inc</code> and add the following content:</p>
<div class="highlight"><pre><span></span><code>discard_on_reject = true;
</code></pre></div>
<p>Restart Rspamd:</p>
<div class="tabbed-set tabbed-alternate" data-tabs="11:2"><input checked="checked" id="__tabbed_11_1" name="__tabbed_11" type="radio" /><input id="__tabbed_11_2" name="__tabbed_11" type="radio" /><div class="tabbed-labels"><label for="__tabbed_11_1">docker compose (Plugin)</label><label for="__tabbed_11_2">docker-compose (Standalone)</label></div>
<div class="tabbed-content">
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker<span class="w"> </span>compose<span class="w"> </span>restart<span class="w"> </span>rspamd-mailcow
</code></pre></div>
</div>
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker-compose<span class="w"> </span>restart<span class="w"> </span>rspamd-mailcow
</code></pre></div>
</div>
</div>
</div>
<h2 id="wipe-all-ratelimit-keys">Wipe all ratelimit keys<a class="headerlink" href="#wipe-all-ratelimit-keys" title="Permanent link">&para;</a></h2>
<p>If you don't want to use the UI and instead wipe all keys in the Redis database, you can use redis-cli for that task:</p>
<div class="tabbed-set tabbed-alternate" data-tabs="12:2"><input checked="checked" id="__tabbed_12_1" name="__tabbed_12" type="radio" /><input id="__tabbed_12_2" name="__tabbed_12" type="radio" /><div class="tabbed-labels"><label for="__tabbed_12_1">docker compose (Plugin)</label><label for="__tabbed_12_2">docker-compose (Standalone)</label></div>
<div class="tabbed-content">
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>redis-mailcow<span class="w"> </span>sh
<span class="c1"># Unlink (available in Redis &gt;=4.) will delete in the backgronud</span>
redis-cli<span class="w"> </span>--scan<span class="w"> </span>--pattern<span class="w"> </span>RL*<span class="w"> </span><span class="p">|</span><span class="w"> </span>xargs<span class="w"> </span>redis-cli<span class="w"> </span>unlink
</code></pre></div>
</div>
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker-compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>redis-mailcow<span class="w"> </span>sh
<span class="c1"># Unlink (available in Redis &gt;=4.) will delete in the backgronud</span>
redis-cli<span class="w"> </span>--scan<span class="w"> </span>--pattern<span class="w"> </span>RL*<span class="w"> </span><span class="p">|</span><span class="w"> </span>xargs<span class="w"> </span>redis-cli<span class="w"> </span>unlink
</code></pre></div>
</div>
</div>
</div>
<p>Restart Rspamd:</p>
<div class="tabbed-set tabbed-alternate" data-tabs="13:2"><input checked="checked" id="__tabbed_13_1" name="__tabbed_13" type="radio" /><input id="__tabbed_13_2" name="__tabbed_13" type="radio" /><div class="tabbed-labels"><label for="__tabbed_13_1">docker compose (Plugin)</label><label for="__tabbed_13_2">docker-compose (Standalone)</label></div>
<div class="tabbed-content">
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker<span class="w"> </span>compose<span class="w"> </span>restart<span class="w"> </span>rspamd-mailcow
</code></pre></div>
</div>
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker-compose<span class="w"> </span>restart<span class="w"> </span>rspamd-mailcow
</code></pre></div>
</div>
</div>
</div>
<h2 id="trigger-a-resend-of-quarantine-notifications">Trigger a resend of quarantine notifications<a class="headerlink" href="#trigger-a-resend-of-quarantine-notifications" title="Permanent link">&para;</a></h2>
<p>Should be used for debugging only!</p>
<div class="tabbed-set tabbed-alternate" data-tabs="14:2"><input checked="checked" id="__tabbed_14_1" name="__tabbed_14" type="radio" /><input id="__tabbed_14_2" name="__tabbed_14" type="radio" /><div class="tabbed-labels"><label for="__tabbed_14_1">docker compose (Plugin)</label><label for="__tabbed_14_2">docker-compose (Standalone)</label></div>
<div class="tabbed-content">
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>dovecot-mailcow<span class="w"> </span>bash
mysql<span class="w"> </span>-umailcow<span class="w"> </span>-p<span class="nv">$DBPASS</span><span class="w"> </span>mailcow<span class="w"> </span>-e<span class="w"> </span><span class="s2">&quot;update quarantine set notified = 0;&quot;</span>
redis-cli<span class="w"> </span>-h<span class="w"> </span>redis<span class="w"> </span>DEL<span class="w"> </span>Q_LAST_NOTIFIED
quarantine_notify.py
</code></pre></div>
</div>
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker-compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>dovecot-mailcow<span class="w"> </span>bash
mysql<span class="w"> </span>-umailcow<span class="w"> </span>-p<span class="nv">$DBPASS</span><span class="w"> </span>mailcow<span class="w"> </span>-e<span class="w"> </span><span class="s2">&quot;update quarantine set notified = 0;&quot;</span>
redis-cli<span class="w"> </span>-h<span class="w"> </span>redis<span class="w"> </span>DEL<span class="w"> </span>Q_LAST_NOTIFIED
quarantine_notify.py
</code></pre></div>
</div>
</div>
</div>
<h2 id="increase-history-retention">Increase history retention<a class="headerlink" href="#increase-history-retention" title="Permanent link">&para;</a></h2>
<p>By default Rspamd keeps 1000 elements in the history.</p>
<p>The history is stored compressed.</p>
<p>It is recommended not to use a disproportionate high value here, try something along 5000 or 10000 and see how your server handles it:</p>
<p>Edit <code>data/conf/rspamd/local.d/history_redis.conf</code>:</p>
<div class="highlight"><pre><span></span><code>nrows = 1000; # change this value
</code></pre></div>
<p>Restart Rspamd afterwards:</p>
<div class="tabbed-set tabbed-alternate" data-tabs="15:2"><input checked="checked" id="__tabbed_15_1" name="__tabbed_15" type="radio" /><input id="__tabbed_15_2" name="__tabbed_15" type="radio" /><div class="tabbed-labels"><label for="__tabbed_15_1">docker compose (Plugin)</label><label for="__tabbed_15_2">docker-compose (Standalone)</label></div>
<div class="tabbed-content">
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker<span class="w"> </span>compose<span class="w"> </span>restart<span class="w"> </span>rspamd-mailcow
</code></pre></div>
</div>
<div class="tabbed-block">
<div class="highlight"><pre><span></span><code>docker-compose<span class="w"> </span>restart<span class="w"> </span>rspamd-mailcow
</code></pre></div>
</div>
</div>
</div>
<h2 id="adding-rspamd-modules">Adding Rspamd modules<a class="headerlink" href="#adding-rspamd-modules" title="Permanent link">&para;</a></h2>
<p>Download the module and save it in the following path: <code>data/conf/rspamd/plugins.d/</code>.</p>
<p>Next, add any necessary configuration for your module to <code>data/conf/rspamd/rspamd.conf.local</code>. \
If you have a module named <code>my_plugin.lua</code>, configuration might look like the following:</p>
<div class="highlight"><pre><span></span><code># rspamd.conf.local
my_plugin {
    some_setting = &quot;some value&quot;;
}
</code></pre></div>
<p>If your module does not require any additional configuration, simply add an empty configuration block, for example:</p>
<div class="highlight"><pre><span></span><code># rspamd.conf.local
my_plugin { }
</code></pre></div>
<p>If you do not add a configuration block, the module will be automatically disabled, and the rspamd-mailcow container log will contain a message such as:</p>
<div class="highlight"><pre><span></span><code>mailcowdockerized-rspamd-mailcow-1  | 2023-05-20 14:01:32 #1(main) &lt;sh6j9z&gt;; cfg; rspamd_config_is_module_enabled: lua module my_plugin is enabled but has not been configured
mailcowdockerized-rspamd-mailcow-1  | 2023-05-20 14:01:32 #1(main) &lt;sh6j9z&gt;; cfg; rspamd_config_is_module_enabled: my_plugin disabling unconfigured lua module
</code></pre></div>
<p>If you have successfully configured your module, the rspamd-mailcow container logs should show:</p>
<div class="highlight"><pre><span></span><code>mailcowdockerized-rspamd-mailcow-1  | 2023-05-20 14:04:50 #1(main) &lt;8ayxpf&gt;; cfg; rspamd_init_lua_filters: init lua module my_plugin from /etc/rspamd/plugins.d//my_plugin.lua; digest: 5cb88961e5
</code></pre></div>

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