Seeing contents of 'Sent' postings that were never posted

Maurice <maurice-odSCf/[email protected]>
Newsgroups gmane.comp.gnome.apps.pan.user
Message-ID <[email protected]> 
In my Pan /Local_folders/Sent group I see the Subject line of several 
ostings that 
never arrived in the target NG.

How does one retrieve the text of one of those files?

-- 
/\/\aurice 
			      Linux 64-bit Mageia-6:    Pan 0.140 KDE 
Plasma 5.12.2
      Virtualbox 5.2.14   Firefox 52.9.0  Kmail 5.7.2
           Thunderbird 52.9.1
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