qpop.2.1.0.Z

	This version of the popper has been handled by a few sites.  It
    has had a few enhancments added to it as well as making a small
    departure from the popper RFC.  We honor deletes and read messages
    when the request occurs.  The RFC states that messages will not
    be deleted until the QUIT command is received.  We found this to be
    a problem for dialup users who have connections fail midway through
    a session.

	We go one step further with "leave mail on server" enabled by
    marking messages read when you start to read them.  This means
    that if a session terminates abnormally while reading a message it
    will be marked as read.  This has the advantage of allowing the
    user to bypass a problem message.  The down side is that the message
    is now unavailable to the user unless they disable "leave mail on
    server".

	Read all the other readme's for more information about who
    changed what.

	The latest version is 2.1.1
    
	Mark Erikson
	mark@qualcomm.com



	This version of the popper was modified by Steve Dorner and Paul
    Pomes at the UIUC.edu to fix a couple of bugs and add a timeout feature.

Version - 2Q1
	It was then modified by Keith Pilotti at Qualcomm.com to write
    out changes to the temporary pop log on an abort.  This diverts from
    the Popper RFC but it made our users life much easier.  The below
    feature is only useful with Eudora's "Leave mail on Server" switch
    set (or any other client that leaves mail on the server).  Basically,
    if a user has read 5 out of 10 messages and the session dies, the
    first 5 messages are marked as read.  If the 5th message is good but
    you only receive part of it then it will be skipped (bad).  But if
    the message was bad and caused the mail client to abort then you can
    continue to receive the rest of your mail (good).

Version - 2Q2
	This version of the popper was then modified by Mark Erikson to
    add HPUX file locking calls and a shorter timeout.  The timeout can
    be configured at the command line.
    
	The timer for any of these versions starts after a command or
    message has been delivered and the popper is expecing input from
    the client.  If the response takes longer than the timeout then the
    popper closes down the socket and cleans up the files.

Version - 2Q3
	This version fixes a bug in the cleanup code.  If an error occurs
    during the login phase then a core file is dumped.  Annoying but not
    serious since the .user.pop file is unlocked and the popper deals with
    this old file as a matter of course.