On Wednesday 11 June 2003 09:25 am, Ako Ito wrote:
> mail server that runs on redhat 7.3 using postfix-2.10 and
> openldap 2.1.17 to be used for authentication
any reason for the version numbers? do you have flexibility
to use some other distribution (probably not, that's OK, if
you only use redhat then stick with that, but maybe a newer
version?), some other version of postfix and openldap (just
curious, what if a security vulnerability is found in them and
the software is upgraded? :).
> > as a database for users info. but his conditions are that mails should be
> > forwarded to a users alternate email address which is in openldap
> > database without using .forward. any ideas on how i can
> > accomplish this?
why not use .forward? is he concerned about stale forwarding
addresses? i.e., the ldap database has a new email address and
the .forward still has the old forwarding address.
1. .forward can run programs, so you can dynamically read the
destination address from ldap and then send the email to that.
2. .forward can be automatically re-generated when forwarding
addresses change (there will still be races, but they can be
managed and minimized if you set the batch update interval
shorter).
is the .forward prohibition arbitrary? are you allowed to use .procmailrc
as a .forward replacement? whatever you can do with .forward you
can do with .procmailrc.
yet another alternative is /etc/postfix/aliases.db. just generate a new
aliases file whenever the forwarding database changes and then run
postmap on it to create aliases.db. i think you need to kick postfix
to get it to reload aliases, it probably won't notice the change by itself.
hehe, there might be other options. e.g., fetchmail can do forwarding.
but i don't like it since fetchmail has to know the email passwords of
the source email addresses before it can check the mail and forward
to the final destination. fetchmail has its place, but your requirement
is probably not one of them :). some sort of milter might also be an
option. but i don't know what postfix has in the way of milter
architecture and API.
tiger
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