Sorry for what may seem like a newbie question.

So, we have the mail spool in /var/mail/username and then subdirectories in ~username/maildir/ that have been created and subscribed to to move things out of /var/mail. Procmail drops probable spam and bounces, among other things, in subdirectories of ~username/maildir/.

I was talking with my boss about directory structures and partitions to optimize performance of mail on the server. He thought there was a temp directory, maybe something like /var/spool/pop, that could be set up on a different spindle so that when email came in and went out it wasn't all hammering on the same drive. As far as I can tell, however, uw-imap doesn't use any temporary file space for reading and moving things around. The only thing I could find was:

http://mailman2.u.washington.edu/pipermail/imap-uw/2008-May/002045.html

 On Sun, 4 May, 2008 Mark Crispin wrote:
> The only temporary files are small (a few bytes) files on /tmp used to aid
 > in locking.


If I'm using sendmail with mimedefang, delivering mail with procmail, and reading with uw-imap, could someone give me a brief tutorial-like summary of the path of the incoming and outgoing mail message, indicating what is just done in memory and what file space gets used (including any temporary file space)? I know, I ought to know; but, sometimes, when you build a bunch of stuff using a variety of cookbooks and guides, you end up not knowing as much about the nitty details as you might like.


TIA


--
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Chris Hoogendyk

-
  O__  ---- Systems Administrator
 c/ /'_ --- Biology & Geology Departments
(*) \(*) -- 140 Morrill Science Center
~~~~~~~~~~ - University of Massachusetts, Amherst
<[email protected]>

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Erdös 4


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