Tim-

Also- here is some additional info which you may or may not have seen:

http://www.eudora.com/qpopper/faq.html#from.lines



 
Sincerely,
 
Michael Klatsky
Senior Unix Administrator
Connecticut Telephone
1 Talcott Plaza
Hartford, CT 06103
1-860-240-6496 

-----Original Message-----
From: Tim Tyler [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, February 06, 2002 4:31 PM
To: Roy C. Bixler
Cc: Subscribers of Qpopper
Subject: Re: qpopper 4.03 corruption?


Qpopper, Roy, & Michael
  Ok, Michael's idea that the top of the mailbox file start with "From:
" is
happening 99.9...% of the time, but in the rare cases that the mailbox
file
gets corrupted, I believe there is no colon in the From header.
However, I
will have to wait until the next corruption to prove this.
  I am very intrigued by Roy's comments about mismatching locking files
with
our mta.  We are using Sendmail 8.11.x.  Are you suggesting that we
consider
using the mail-lock-check feature and set it to something less than 500?
I
read somewhere that it must process within 60 seconds.  I am pretty sure
Linux uses Sendmail as well.  When you recompiled qpopper, what are you
refering to with regards to "recompiling with mail locking header
files"? 
Is this the mail-lock-check option or something else?  
 Tim

>
>On Wed, 6 Feb 2002, Tim Tyler wrote:
>> Qpopper experts,
>>     We recently installed qpopper 4.03 back in December.  Since then
we have
>> had 4 occurrances where their mailbox in /var/spool/mail became
corrupt for
>> some reason.  We have configured qpopper to write the temporary pop
file to
>> a different directory structure (/var/spool/pop).  Given that we have
1500
>> active users, it seems to be working for the most part.  But
occassionally
>> some users with a quite a few megabytes of email will find that when
they
>> have their client configured to leave on server, their temporary pop
file
>> can't get written back to the mailbox file properly.  This has only
happened
>> 4 times now, but it is raising a red flag for me.  Something is
corrupting
>> the mailbox file because if I 'vi' into the mailbox and resave (w!)
the
>> file, the file becomes approximately 1/10 of its original size.  Its
as
>> though the file thinks its much larger than it really is.  This is an
>> obvious corruption, but I don't know why.  It also appears to be a
small
>> subset of the temp pop file which remains in the /var/spool/pop
directory.
>>   What might cause the mailbox file to become corrupted when the temp
pop
>> file tries to write itself back to the mailbox file?  Is there a
compile
>> option that I might consider to minimize corruption?
>>   Note: we do use a quota, but not all incidences exceeded the quota.
Also,
>> we never had this problem with the old qpopper 2.0.
>
>Well, I wouldn't call myself an expert but we encountered similar
>problems.  I believe the problems might involve a mismatch of mailbox
>locking between your MTA and qpopper.  In our case, I was able to
install
>the mail locking header files under our Linux distribution (Debian),
>re-compile, and re-install qpopper.  It seems to work so far.
>
>-- 
>Roy Bixler
>The University of Chicago Press
>[EMAIL PROTECTED]
>
>


-- 
Tim Tyler
Network Manager - Beloit College
[EMAIL PROTECTED]
Go Packers! Go Badgers!
1999&2000 Rose Bowl Champions!

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