[courier-users] Question about Courier and AFS

[John Rudd]

On the courier pages, it says that Courier wont work with AFS, but only mentions this in the context of the FIFO required for the mail queue's.

Is this the only restriction on using Courier with AFS? If I keep the mail queue's on the local UFS file system, and only use AFS for storing the mail folders, with courier work with that? I realize I'll have to handle the token stuff myself (probably via a wrapper around the way inetd invokes courier), but aside from that, is there any other reason to avoid using AFS with Courier?

My basic idea is to leverage AFS as a means of having multiple distributed mail servers (SMTP, POP and IMAP). I'm not sure yet whether or not I'll have the user Maildir's in their home directory or not (in general I would like to, but there are some reasons for keeping them separate).


I'm also curious if courier has SASL support, and if anyone has tried working in KPOP support ... we have all of our account information and authorization information in Hesiod*, and then the passwords are all in kerberos; PAM will help us with supporting password authentication, but we also have a lot of legacy users using KPOP (pop authenticated via kerberos tickets).

Related to that, sort of, is "if I use LDAP for the user information, can I still use PAM for the user authentication?" If I have to use LDAP authentication if I store the user info in LDAP, does it work via the LDAP bind (which can be made to work with kerberos), or does it work via storing a password string (encrypted or not) in the directory (this latter option being very bad ... enough so that I wouldn't use courier with LDAP if that's the only way to use LDAP with courier).



(* for anyone who isn't familiar with Hesiod, it's like NIS in function, but the underlying engine is DNS, so you can easily make local caches, have secondary servers that are spread out on different lans, etc.)



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