<p>From the logs. One current mail in the <code>SMS</code> folder is to blam. I don't know more because the logs saying the headers are modified was done on another sync.</p>
<ul class="task-list">
<li>You might want to compare what is on remote and what is not.</li>
<li>If nothing obvious, you could try to move last half mails in <code>SMS</code> out of the folder (or out of the Maildir) and re-sync to check if the issues is still there. Then you know what half has the offending mail. More iterations will let you know what's the offending mail.</li>
</ul>
<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">—<br>Reply to this email directly or <a href="https://github.com/OfflineIMAP/offlineimap/issues/172#issuecomment-84913538">view it on GitHub</a>.<img alt="" height="1" src="https://github.com/notifications/beacon/AKFSEN6OnPztPNxCDPCWSZwlIgTSqXLGks5n39aygaJpZM4Djvum.gif" width="1" /></p>
<div itemscope itemtype="http://schema.org/EmailMessage">
<div itemprop="action" itemscope itemtype="http://schema.org/ViewAction">
<link itemprop="url" href="https://github.com/OfflineIMAP/offlineimap/issues/172#issuecomment-84913538"></link>
<meta itemprop="name" content="View Issue"></meta>
</div>
<meta itemprop="description" content="View this Issue on GitHub"></meta>
</div>