Re: Message filtering plugin

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On Tue, July 25, 2006 10:27 am, Tony Stocker wrote:
> I don't understand, everything that I've read about Procmail suggests
>  that since virtual users don't have home accounts, you can't use
> Procmail to filter mail for them individually because there is no
> .procmailrc file to read.  I've actually got the same dilemna with
> vacation programs since the accounts are all virtual users and thus no
>  .forward files can exist.  Are you saying that there's a way to
> implement per-user procmail settings when the users don't have home
> directories, just mail directories?

:)  Get a better IMAP server that lets you do all of this on the
server.  Something like Cyrus IMAP (which supports the SIEVE filtering
language).  Then you can use the Sieve Filters plugin, which gives you
a user-controllerd filters pluging, server-side filtering, vacation
controls, and more.  Plus, all users are virtual users by design,
which means all the filtering, vacation, etc all work with virtual
users.  And, if you ever need to expand beyond 1 server, Cyrus support
the MURDER protocol to spread your single IMAP namespace across
multiple servers (something none of the other IMAP servers I've tried
can do).  :)  Cyrus also scales into the tens-of-thousands of messages
per folder a lot better than Courier does (I could kill a dual-Opteron
server with 4 GB of RAM by opening a folder with 15,000 messages in it
when running Courier, but Cyrus barely registers the load).  (Haven't
tested Dovecot to compare.)

Granted, configuring Cyrus the first time is not for the faint of
heart, and reading the documentation several times is an absolute
must.  But, the end result is definitely worth it.

As for procmail, you can configure a global procmailrc file with
recipes for each user account in it.  Not the greatest method to use
(maildrop and Sieve work better for this) but it is possible.

----
Freddie Cash, LPCI-1 CCNT CCLP        Helpdesk / Network Support Tech.
School District 73                    (250) 377-HELP [377-4357]
fcash-ml@xxxxxxxxxx


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