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deploy: 7af7546d88375a67c38d8d78eafe87a00ec9563e
2023-05-23 15:25:42 +00:00
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<h1>Email Gathering with Getmail</h1>
<p>To enable the <a href="https://www.getmail.org">getmail</a> service to retrieve e-mails set the environment variable <code>ENABLE_GETMAIL</code> to <code>1</code>. Your <code>compose.yaml</code> file should include the following:</p>
<div class="highlight"><pre><span></span><code><span class="nt">environment</span><span class="p">:</span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">ENABLE_GETMAIL=1</span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">GETMAIL_POLL=5</span>
</code></pre></div>
<p>In your DMS config volume (eg: <code>docker-data/dms/config/</code>), create a <code>getmail-&lt;ID&gt;.cf</code> file for each remote account that you want to retrieve mail and store into a local DMS account. <code>&lt;ID&gt;</code> should be replaced by you, and is just the rest of the filename (eg: <code>getmail-example.cf</code>). The contents of each file should be configuration like documented below.</p>
<p>The directory structure should similar to this:</p>
<div class="highlight"><pre><span></span><code>├── docker-data/dms/config
│   ├── dovecot.cf
│   ├── getmail-example.cf
│   ├── postfix-accounts.cf
│   └── postfix-virtual.cf
├── docker-compose.yml
└── README.md
</code></pre></div>
<h2 id="configuration"><a class="toclink" href="#configuration">Configuration</a></h2>
<p>A detailed description of the configuration options can be found in the <a href="https://getmail6.org/configuration.html">online version of the manual page</a>.</p>
<h3 id="common-options"><a class="toclink" href="#common-options">Common Options</a></h3>
<p>The default options added to each <code>getmail</code> config are:</p>
<div class="highlight"><pre><span></span><code>[options]
verbose = 0
read_all = false
delete = false
max_messages_per_session = 500
received = false
delivered_to = false
</code></pre></div>
<p>If you want to use a different base config, mount a file to <code>/etc/getmailrc_general</code>. This file will replace the default "Common Options" base config above, that all <code>getmail-&lt;ID&gt;.cf</code> files will extend with their configs when used.</p>
<details class="example">
<summary>IMAP Configuration</summary>
<p>This example will:</p>
<ol>
<li>Connect to the remote IMAP server from Gmail.</li>
<li>Retrieve mail from the gmail account <code>alice</code> with password <code>notsecure</code>.</li>
<li>Store any mail retrieved from the remote mail-server into DMS for the <code>user1@example.com</code> account that DMS manages.</li>
</ol>
<div class="highlight"><pre><span></span><code>[retriever]
type = SimpleIMAPRetriever
server = imap.gmail.com
username = alice
password = notsecure
[destination]
type = MDA_external
path = /usr/lib/dovecot/deliver
allow_root_commands = true
arguments =(&quot;-d&quot;,&quot;user1@example.com&quot;)
</code></pre></div>
</details>
<details class="example">
<summary>POP3 Configuration</summary>
<p>Just like the IMAP example above, but instead via POP3 protocol if you prefer that over IMAP.</p>
<div class="highlight"><pre><span></span><code>[retriever]
type = SimplePOP3Retriever
server = pop3.gmail.com
username = alice
password = notsecure
[destination]
type = MDA_external
path = /usr/lib/dovecot/deliver
allow_root_commands = true
arguments =(&quot;-d&quot;,&quot;user1@example.com&quot;)
</code></pre></div>
</details>
<h3 id="polling-interval"><a class="toclink" href="#polling-interval">Polling Interval</a></h3>
<p>By default the <code>getmail</code> service checks external mail accounts for new mail every 5 minutes. That polling interval is configurable via the <code>GETMAIL_POLL</code> ENV variable, with a value in minutes (<em>default: 5, min: 1, max: 30</em>):</p>
<div class="highlight"><pre><span></span><code><span class="nt">environment</span><span class="p">:</span>
<span class="w"> </span><span class="p p-Indicator">-</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">GETMAIL_POLL=1</span>
</code></pre></div>
<h3 id="xoauth2-authentication"><a class="toclink" href="#xoauth2-authentication">XOAUTH2 Authentication</a></h3>
<p>It is possible to utilize the <code>getmail-gmail-xoauth-tokens</code> helper to provide authentication using <code>xoauth2</code> for <a href="https://github.com/getmail6/getmail6/blob/1f95606156231f1e074ba62a9baa64f892a92ef8/docs/getmailrc-examples#L286">gmail (example 12)</a> or <a href="https://github.com/getmail6/getmail6/blob/1f95606156231f1e074ba62a9baa64f892a92ef8/docs/getmailrc-examples#L351">Microsoft Office 365 (example 13)</a></p>
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