server/apps/demo/pop3server.xml

<?xml version="1.0"?>
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<!-- Read https://james.apache.org/server/config-pop3.html for further details -->

<pop3servers>
    <pop3server enabled="false">
        <jmxName>pop3server</jmxName>
        <bind>0.0.0.0:110</bind>
        <connectionBacklog>200</connectionBacklog>
        <tls socketTLS="false" startTLS="false">
            <privateKey>file://conf/private.key</privateKey>
            <certificates>file://conf/private.csr</certificates>
        </tls>
        <connectiontimeout>1200</connectiontimeout>
        <connectionLimit>0</connectionLimit>
        <connectionLimitPerIP>0</connectionLimitPerIP>
        <handlerchain>
            <handler class="org.apache.james.pop3server.core.CoreCmdHandlerLoader"/>
        </handlerchain>
    </pop3server>
</pop3servers>