My interpretation of the error message that you asked
about is that the subscriber's e-mail system, network
or possibly PSUVM.PSU.EDU itself was unavailable for
at least 4 hours.  (I don't think PSUVM was unavailable
during that time period though.)
 
Maybe there were some process config problems at:
 
>from Cust6.Max45.New-York.NY.MS.UU.NET [153.35.22.6]
>Reporting-MTA: dns; germany.it.earthlink.net
 
--  co-owner:   INFOSYS, TQM-L, CPARK-L, ERAPPA-L, JANITORS, LDBASE-L, et -L
URL:mailto:[log in to unmask]                    "PSUVM.bitnet RIP 12/31/96"