Re: [courier-users] rcptfilter won't run (Debian 3.1 / Sarge)

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Dave Platt writes:

> It turns out that the rules-of-the-game are rather different for
> aliases defined by the Courier aliases/aliases.dat mechanism, and
> for those which are defined via the QMail-style .courier-aliasname
> mechanism.
>
> For aliases defined in aliases.dat, the necessary rcptfilters go into
> the .mailfilters in the home directory for the user ID specified
> in the "aliasfilteracct" config file. The name of the rcptfilter
> for an alias "foo" would be rcptfilter-alias-foo@domain:tld (i.e.
> "rcptfilter-alias-" followed by the fully-qualified email address
> of the alias, with dots in the domain name changed to colons. The
> .mailfilters directory, and the rcptfilter-alias=* files, must be
> owned by the "aliasfilteracct" user, and must not be accessible to
> other users. The maildrop scripts are run under this user/group ID.

This is documented in the localmailfilter man page.

> For aliases defined by Qmail-style .courier files located in the
> /etc/courier/aliasdir/ directory, the rules are different. In these
> cases, the filters go in /etc/courier/aliasdir/.mailfilters/ and
> are simply named like "rcptfilter-foo" (no "-alias" and no
> @domain.tld). The directories and filters must be owned by
> whatever user/group ID you've specified in the esmtpd config file
> (usually daemon.daemon) and are run under that user-ID.

This is not really documented explicitly, but can be inferred from other
sources.

The dot-courier man page indicates that courier/aliasdir is the default
catchall, and the rest can be inferred naturally, if you consider that
courier/aliasdir as the mail account the message gets delivered to.


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