Re: [exim] ACL rewrite

Searcher wrote:
> I tried to use your last suggestion but to no avail
> If I understand it correctly though, it does not rewrite anything but sends
> the email to the *new* recipient?

Yes - your post *seemed* to indicate that you have both the:

<subset_list>@our.domain.special.domain

- active on 'a' server, as well as the:

<entire_list>@our.domain

AND that you are already munging the 'From: / Reply To:' to intercept
the traffic for 'probationers'.

So why bother with the extra manual rewrite when straightforward
aliasing can serve?

Given that I can't fathom even *why* you are doing all this, I'll take
as given that you may not be doing things quite that way.

Just because you have found a hammer doesn't mean you cannot use it for
a walking-stick instead of driving nails. One can get used to the
leg-cramps.

;-)



>

> I tried couple (zillion) of other things with my previous settings and
> suddenly realized that the config file number is actually a sequential order
> how the files are being loaded (dummy) and managed to get it working by a
> quite simple, eh:
>> 30_exim4-config_check_rcpt
> set acl_m7 =
> ${lookup{$local_part@$domain}lsearch{/etc/exim4/sc_clients}{$value}{}}
>> 31_exim4-config_rewriting 
> *@*    $local_part@$acl_m7    Ffrsq

>
> Where /etc/exim4/sc_clients uses the alias format
> recipient@???: new_sender_domain
>

Over my head. That is all Debian/Exim-specific stuff.

The regular Exim install has only one configure file, and, yes, various
'functional' parts of it need to remain in expected order.

Likewise sequence within each part very much matters.

> And this does exactly what I was after: if the recipient is in the alias
> file it rewrites the sender, if the recipient is not in the list nothing
> happens.
>
> Thank you for all your help Bill
> But if you still think I'm doing it wrong and have the patience to explain
> it - I'm all yours
>
> Thanks
> -src-
>
>

I haven't a clue if it is right or wrong. I don't see what you believe
you are gaining.

If the goal is to temporarily monitor new accounts, or to place
different quotas or other restrictions on them while awaiting approval,
or throttle based on 'class' (or fees) .. or whatever... I don't see any
of those goals served by munging addresses.

*Most especially* not the <domain>.<tld> side!

You either have control of account@??? and their settings, or NOT.

Bill



> -----Original Message-----
> From: exim-users-bounces@??? [mailto:exim-users-bounces@exim.org] On
> Behalf Of W B Hacker
> Sent: Thursday, May 15, 2008 20:45
> To: exim users
> Subject: Re: [exim] ACL rewrite
>
> Searcher wrote:
>>> - all recipients to be handled are your clients
>> Yes they are
>>> - all affected deliveries are 'local'.
>> None of the deliveries are local, this is just a forwarder of emails to be
>> modified or to be left untouched - the only purpose of this instance of
> exim
>> is to sort emails 2 ways
> *snip*
>
> - Dump all the acl stuff and single-recipient limit stuff.
>
> - pick up the 'default' system_aliases router:
>
> ====
>

> system_aliases:
>    driver = redirect
>    allow_fail
>    allow_defer
>    data = ${lookup{$local_part}lsearch{/etc/aliases}}
>    user = mailnull
>    group = mail
>    file_transport = address_file
>    pipe_transport = address_pipe

>
> =====
>
> rename it from "system_aliases:" to, for example "probationary:"
>
> Change the path and filename {/etc/aliases} in
>
> " data = ${lookup{$local_part}lsearch{/etc/aliases}}"
>
> to some other /path/filename that Exim's 'group' can read, and that your
> appointed admin (person or script or web interface) can write to.
>
> Example ownership: specialadmin:mail
>
> Use a script, web interface, SQL DB trigger, or POT editor to put
> those-who-are-to-be re-written into that new file and take them out later.
>
> Use the conventional alias file format:
>
> recipient[1]@our.domain.special.domain: recipient[1]@our.domain
> .
> .
> .
> .
>
> recipient[n]@our.domain.special.domain: recipient[n]@our.domain
>
> Delete them or comment them out when they are off probation.
>
> No need to restart Exim.
>
> No need to do a 'newaliases' or such - Exim will read the specified file
> directly, not a db/cdb of it.
>
> Place this ahead of whatever router handles those who are no longer to
> be re-written - e.g. 'normal' folks.
>
> AFAIK, that relieves you of the need to re-write headers manually at all.
>
> KISS. You *could* just use the stock router and /etc/aliases file,
> though on ownership/perms and location grounds alone, I'd suggest not
> mixing them.
>
> HTH,
>
> Bill
>
>
>