[OpenAFS] Mail delivery into OpenAFS

[Noel Burton-Krahn]

I've been running mail and everything else in AFS for quite a while, and it
works great.  Qmail delivers to a user's AFS home, Courier IMAP reads it,
and users use Express, Outlook, Eudora, whatever.  It's great because the
mail counts towards the user's quota, and users can archive messages by
dragging them off their AFS drive. Here are some notes:

qmail delivers to ~/Maildir
* I modified qmail-local to get AFS tokens.
* I had to be careful to get the ACLs right: the mail daemon can add and
delete messages, but not read them
* ~/.qmail files have to be links to mail-daemon-readable directories
* I'm going to modify qmail to make Windows-friendly names so users can
double-click message file to open in Express.

SpamAssassin saves to a user's ".Spam" folder, which is cleaned every few
days.

Courier-IMAP reads ~/Maildir
* I modified courier's authpam to get AFS tokens

sqwebmail
* I've modified Apache to get AFS tokens so sqwebmail can read Maildirs
directly without extra auth

I'd be glad to help you set this up.  I've also made a canned version of
this for small offices (www.bkbox.com)

Noel Burton-Krahn
noel@bkbox.com




----- Original Message -----
From: "Nathan Ward" <nward@esphion.com>
To: <openafs-info@openafs.org>
Sent: Sunday, July 06, 2003 8:40 PM
Subject: Re: [OpenAFS] Mail delivery into OpenAFS


> On Sun, 06 Jul 2003 19:54:57 -0700, Russ Allbery <rra@stanford.edu> wrote:
>
> > Nathan Ward <nward@esphion.com> writes:
> >
> > There's no way to test first that doesn't involve a race condition.
> >
> Granted, but it at least shortens the window. Checking in multiple places
> should shorten this further, no?
>
>
> > It's your mail, so if you can convince yourself that it's safe enough
for
> > you, that's your call.  I tend to avoid trying to make up and prove
> > properties of locking methods and just use established, well-regarded
> > ones instead; it saves wear and tear on my brain.
>
> On Sun, 6 Jul 2003 23:14:22 -0400 (EDT), Stephen Joyce
> <stephen@physics.unc.edu> wrote:
>
> > PS. Any specific reason you're reinventing the wheel rather than use a
> > proven email solution?  (I personally like cyrus--while I never got it
to
> > compile with AFS support, I found I don't really need it since it has
> > built-in acl and quota support).
>
> All home directories are on AFS.
> Users want mail in thier home directories. I want user's mail quotas as
> part of thier overall disk quota. Having a second quota for mail is all
> well and good, until the user recieves a large file (this is a common
thing
> in our company) and it takes the whole thing. At least with a single large
> quota of thier home directory they can free up some space and recieve the
> mail in the unlikely event that it bounces. It is unlikely that any user
> will see thier AFS quota full anytime soon. It is perhaps worth noting
that
> we have alot more disks dedicated to AFS than to the mail server.
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