>>>>> "Matt" == Matt Lawrence <m...@technoronin.com> writes:

Matt> On Mon, 12 Jan 2015, Smith, David wrote:
>> According to this RHEL bug: 
>> https://bugzilla.redhat.com/show_bug.cgi?id=428996
>> Postfix 2.4 (and below, presumably, including 2.3 which was packaged with 
>> CentOS 5) used off_t for file offsets, which appears to be a 32-bit value on 
>> CentOS 5 32-bit. So that probably is the root cause.
>> 
>> If you have the freedom to move to CentOS 6 or 7, or even a 64-bit install 
>> of CentOS 5, Postfix probably will start to behave again.

Matt> I certainly can move to CentOS 6 or 7, but that's a bigger job
Matt> than moving to Maildir and IMAP, particularly since I've been
Matt> meaning to add in IMAP support for years now.


I've gone through some of this hassle myself at home.  I'm still
reading email using VM inside emacs, but I do have IMAP semi setup for
the kid's email.  I just never made my transition over to it since I
too ssh in and just read email in an ASCII client.  Which is getting
harder and harder to do since more and more email has images and such
which pretty much require GUI tools.  Sigh...

In any case, procmail feeding procmail feeding dovecot on Debian has
worked really really well for me.  Easy to do, secure, and I got away
from the insanity of Sendmail thank god.

In your case Matt, you have three options in ease of choice:

1. cleanup your inbox, archive off old emails.  Can't be *that* hard.  

   Actually, why are you delivering directly to your mbox from
   postfix?  Shouldn't you be delivering into a spool file which is
   then copied by alpine into your main mbox?  This is how I have my
   emacs VM setup working.  This way I don't have to coordinate lots
   of updates or file locking, esp for my email when I'm saving it.
   It's much more of:  

   - fetchmail grabs email from my provider(s) and feeds to procmail.
   - procmail filters and pushes mail into various folders.  For
     example I get a copy of all my kid's emails right now.  
   - the folders are purely mail spools, mail gets appended, or it
     gets pulled out and the file truncated under a lock.  
   - mail is read from mailboxes, each of which has a mailspool which
     feeds it.  
  
2. upgrade to centos 7 (skip six at this point I think) and get a more
   upto date set of tools.  This keeps the exact same setup and
   infrastructure, but gets the latest versions which gets rid of the
   file size limitations.  

3. Install and configure IMAPs using dovecot.  Cyrus IMAPd is way
   overkill for a small home setup.  Securing it so that access from
   outside your home network is another issue, and one that I've been
   hesitant to do.  Now I would just setup a dedicated IMAP VM to handle
   all that.  Maybe.  Hard to know honestly.


In any case, this has been an interesting discussion.  Please do a
writeup when you're done and share it with us if you can please.  I'd
love to know your reasoning for various decisions, just so we can all
nitpick them for you.  *grin*

Cheers,
John



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