[OpenAFS] Mail delivery into OpenAFS

[Russ Allbery]

Nathan Ward <nward@esphion.com> writes:
> Russ Allbery <rra@stanford.edu> wrote:

>> Authentication tends to be a pain.  Handling of soft errors and hard
>> errors leaves something to be desired.  Locking is crap, and maildir
>> isn't going to work because maildir requires cross-directory hard links
>> which are flatly unsupported in AFS.

> Authentication is fine.. User authenticates to IMAP or POP3 server which
> gets tickets and tokens with PAM, discarding them on logout.

Authentication of the mail server to AFS, not authentication of the user
to AFS.  It's not impossible, it's just a pain.

> Maildir works for me because I patched qmail-local.c to rename if it
> can't link. Perhaps I should check if the new filename exists, and if it
> does temporarily defer delivery.

Oh, if you don't *really* care about safe mail delivery, locking isn't
nearly as much of a problem.  :)

-- 
Russ Allbery (rra@stanford.edu)             <http://www.eyrie.org/~eagle/>