On Oct 11,  6:52pm, George Buckner wrote:
} Subject: unexplained duplicate messages
} One of our subscribers just got the following message from our listserv.
}
} >Your message  is being returned to  you unprocessed because it  appears to have
} >already  been  distributed to  the  PSYCHE-B  list.  That  is, a  message  with
} >identical text  (but possibly with different  mail headers) has been  posted to
} >the list recently, either by you or by  someone else...
}
} The subscriber doesn't understand why he got this message, since he only
} submitted it once, and it was approved and distributed.
}
} So, assuming the subscriber didn't actually send a duplicate, what kinds
} of things can cause this condition?

A mailer somewhere hiccuped and sent it again.  Or a malfunctioning
mailer send it back to the list.  Only the complete headers can show what
happened.

--
Rich Greenberg   Work:  Rich.Greenberg atsign worldspan.com   +1 770-563-6656
N6LRT   Marietta, GA, USA   Play: richgr atsign netcom.com    +1 770-321-6507
Eastern time zone.   I speak for myself & my dogs only.     VM'er since CP-67
Canines:Val(Chinook,CGC,TT),Red(Husky,(RIP)),Shasta(Husky,TT) Owner:Chinook-L
Atlanta Siberian Husky Rescue.  Adopt a homeless Husky.  Asst Owner:Sibernet-L