Graham Leggett:
> Hi all,
>
> I've had an LDAP table in main.cf configured for a number of years
> containing the following filter, and this has worked fine. The
> filter matches all email addresses that should be delivered anywhere
> except for the local server:
>
> ldapremote_query_filter =
> (&(|(mail=%s)(mailAlternateAddress=%s))(!(mailHost=$myhostname)))
>
> I have since tried to update the LDAP table configuration to use
> separate files as recommended by the docs, for example
> ldap:/etc/postfix/remove.cf, and after doing so delivery fails
> with a mail loop. It turns out using the new LDAP table syntax the
> value of "myhostname" is no longer parsed and the string is passed
> through to the LDAP query unmodified:
Postfix will expand $myhostname etc. in LDAP parameters *only* when
you specify those parameters in main.cf.
Wietse
