title: Apache JAMES Mail Server Do NOT receive Email
body: <p>I'm running 3.6.1 version with Thunderbird as my email client.
  I have default ports (110 pop3 and 25 smtp). I've run james-cli to configure a local domain with two users following similar steps to the ones described <a href="https://javaworld-abhinav.blogspot.com/2019/04/setting-up-local-mail-server-using.html" rel="nofollow noreferrer">here</a>.
  Then I send an email from one user to another. I can see the email being processed by James server and it shows a success spool message:</p>
  <pre><code>23-Jan-2022 00:32:31.186 INFO [smtpserver-executor-115] org.apache.james.smtpserver.SendMailHandler.onMessage:75 - Successfully spooled mail Mail1642915951164-13b92487-1832-4fa8-8739-e0affb2624b4 from MaybeSender{mailAddress=Optional[john.doe@mylocalmail.com]} on view-localhost/127.0.0.1 for [fsinatra@localhost]
  </code></pre>
  <p>When my target user request messages the pop3 logs seem fine by STAT operation retrieves no emails:</p>
  <p><code>23-Jan-2022 00:39:13.211 DEBUG [pop3server-executor-738] org.apache.james.protocols.api.handler.CommandHandlerResultLogger.onResponse:36 - org.apache.james.protocols.pop3.core.StatCmdHandler: [+OK 0 0] </code>
  To me that shows that the email never made it into that inbox. I haven't touch the config, is there any config I'm missing? I have some more logs I could share if required</p>
  <p>Also I've seen a similar <a href="https://stackoverflow.com/questions/60660911/apache-james-3-4-message-spooled-but-not-delivered">issue</a>, but the resolution was to comment some lines in the <code>mailetcontainer.xml</code> and they already come commented in my current 3.6.1 version.</p>