[1] : Jargon File (4.3.1, 29 Jun 2001)

barfmail n. multiple bounce messages accumulating to the level of
   serious annoyance, or worse. the sort of thing that happens when an
   inter-network mail gateway goes down or wonky.


see also:
bounce message 

[2] : The Free On-line Dictionary of Computing (27 SEP 03)

barfmail
     
         multiple bounce messages accumulating to the
        level of serious annoyance, or worse.  the sort of thing that
        happens when an inter-network mail gateway goes down or
        misbehaves.
     
        jargon file
     
        1996-01-05
     
     
see also:
bounce messages mail gateway jargon file 

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