On Tue, Sep 16, 2008 at 07:17:40PM +0200, Henrik Friedrichsen wrote:
> Hey,
> I have set up a postfix server on FreeBSD 7.0. Almost everything works fine,
> but there
> are a few issues I need to sort out:
>
> 1) I want postfix to enforce the sender domain to one of ~3 domains. If the
> sender address domain
> set by the client is in the list postfix uses, use it, if not, enforce a
> default one.
Would it not be better to reject the mail? How do you that:
[EMAIL PROTECTED]
should be
[EMAIL PROTECTED]
instead? Or are you looking to masquerade sub-domains, or something else
more sensible?
> 2) I want postfix to enforce the sender user to the username the mail
> originated from. Mutt users on my servers shouldn't be able to set
> the sender username to someone else's, just to their own.
>
> Is this possible? Help is appreciated!
If mutt submits via SMTP yes, if mutt does local submission, no. The
Postfix sendmail(1) compatibility layer does not impose restrictions on
"-f sender" arguments, nor should it, if for example users ".procmail"
rules forward messages (as losing the envelope sender causes mail
loops, ...)
For SMTP with SASL, you can use smtpd_sender_login_maps. This really
addresses SMTP MUA use cases, not shell users with mutt.
--
Viktor.
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