??? If a Milter deletes a recipient, and if queue groups are used, that recipient can
cause a queue group to wrongly be selected. This defect has been fixed in V8.14.
??? When using V8.12 and later sendmail, avoid moving queue files yourself. The qf
file, for example, internally stores the full pathname of the df file??™s directory,
which means you would need to edit that line as part of a move. Also, sendmail
can split messages at message submission time into multiple qf files, possibly in
different queues, all sharing a df file with hard or symbolic links to it. This complexity
makes moving queue files a complex undertaking.
11.12 The qf File Internals
The qf file holds all the information that is needed to perform delivery of a queued
mail message. The information contained in that file, and its appearance, changes
from release to release of sendmail. Here, we document the qf file that is used with
V8.14 sendmail. Note that V8.7 introduced a V version line that enabled later versions
to correctly process older versions??™ queue files.
This section must be taken with a proverbial grain of salt. The internals of the qf file
are essentially an internal interface to sendmail and, as such, are subject to change
without notice. The information offered here is intended only to help debug sendmail
problems. It is not intended (and we strongly discourage its use) as a guide for
writing files directly to the queue.
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