Em Wed, 5 Feb 2003 23:59:27 -0500, "Theodore J. Knab"
<[EMAIL PROTECTED]> escreveu:
(...)
> OPENLDAP seems very fast and reliable as long as your reindex the
> database every once in a while. But LDAP, is a nightmare to setup the
> first time with Courier if you have never worked with it or any other
> database.
LDAP is not as fast as a db file, but you gain in distributing the user
information if you replicate the server on one or more slaves. You can
also improve A LOT scalability using such distributed db as LDAP. But
most people agree that LDAP is a lot more fast than mysql for example
(for answer the queries)..
> Squirrel mail seems easy to install, but it seems to be slugish with
> Apache-SSL 1.3.x.
Hu? It is on my future plans, can you tell more?
> > Anything I should stay away from?
>
> PHP, managers, and maybe file-system quotas.
> Kernel quotas on the file-system, which I used for
> quotas, seem to be very unforgiving for gui clients. In fact,
> most gui client programmers assume that IMAP simply deletes
> mail. If all users where using ssh on the local filesystem, filequotas
> may not be an issue. But, my IMAP server moves all deleted mail to
> INBOX.Trash. The users access their mail from a gui client. File
> quotas in the kernel can cause problems if someone does not delete
> mail. For example, if someone doesn't put anything in the trash, the
> admin [you] will have to manually raise the quota before some clients
> will be able to delete mail. I spend too much time doing this.
When using LDAP (or MySQL) to store user account information, you'd
better use also virtual mail quota per user with something like
maildrop. Works like a charm if you RTFM. In this design, you have one
system user (e.g. virtual) to hold all maildirs on filesystem and the
softwares (MTA/MDA/Webmail/POP/IMAP) will manage the quotas.
I like this setup, besides I dont use it yet. But tested once and it
works very well. It is planned for a near future for us.
[ ]'s
--
Marcio Merlone
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