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+ </style></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 7. Performance tuning</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="optionalfeatures.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="reference.html">Next</a></td></tr></table><hr /></div><div class="chapter" lang="en" xml:lang="en"><div class="titlepage"><div><div><h2 class="title"><a id="tuning"></a>Chapter 7. Performance tuning</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="sect1"><a href="tuning.html#tuning-mailboxes">1. Reading and writing mailboxes</a></span></dt><dt><span class="sect1"><a href="tuning.html#tuning-messages">2. Reading messages from remote folders</a></span></dt><dt><span class="sect1"><a href="tuning.html#tuning-search">3. Searching and limiting</a></span></dt></dl></div><div class="sect1" lang="en" xml:lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="tuning-mailboxes"></a>1. Reading and writing mailboxes</h2></div></div></div><p>