On Tue, Oct 07, 2008 at 06:00:53PM +0200, Eugen Leitl wrote:
> I need to send a semiannual newsletter to a short, manually
> maintained list of people. While I run a couple Mailman lists
> this appears to be an overkill for the job (besides that
> Mailman/postfix on a virtual host is no setup I ever care
> to tackle again).
>
> What I thought about is a magic alias (security by obscurity)
> which resets From: to a standard reply for this domain and
> reflects any email sent to it to a list of addresses picked from
> a file via Bcc: to avoid address harvesters and compulsive
> reply-all-ers.
>
> I was thinking either of .forward or .procmailrc which
> calls a script which uses postfix's sendmail interface.
Formatting the message is not really the MTA's job. Ideally you
can generate a fully formed message with all the right headers
and inject it via:
sendmail -i -f [EMAIL PROTECTED] [EMAIL PROTECTED] < msg.txt
Then all you need to ensure is that you don't external mail to reach
[EMAIL PROTECTED] (or appear to be sent from that address and to
abuse a bounce-back injection). Blocking the list expansion address
can be done with access(5) tables.
If you want to send to the list using your MUA, you could indeed play
tricks with procmail, ... Restricting access is bit more complex,
but you could setup sender-login-mismatch restrictions for your
sender address, and use restriction classes.
--
Viktor.
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