[pfx] Re: reject_sender_login_mismatch question

Sad Clouds via Postfix-users:
> # cat smtpd_sender_login_maps
> [email protected] [email protected]
> 
> Only mail from support@ with user marco is allowed, all other users are
> rejected, as they are not listed in the smtpd_sender_login_maps.
> 
> I would like to avoid duplicating all of the Dovecot userdb users in
> the above table and I would prefer to use smtpd_sender_login_maps as an
> exceptions table, i.e.:
> 
> If authenticated user is sending mail as himself or herself then allow,
> otherwise check smtpd_sender_login_maps and if not listed then reject.
> 
> Is there a way to configure Postfix like this?

It's called smtpd_sender_login_maps i.e. the plural form.
This means you can do:

/path/to/main.cf:
    smtpd_sender_login_maps = 
	pcre:/path/to/this hash:/path/to/that

/path/to/this:
    # Requires that login name equals the non-plussed sender address
    /^([^+@]+)(\+[^@]*)?(@.+)$/ $1$3

/path/to/that:
   [email protected] [email protected], [email protected]

See also smtpd_sender_login_maps documentation for 
enforcing that header.from equals envelope.from

	Wietse
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