Re: [exim] strict_rfc821_envelopes

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Auteur: Ron White
Datum:  
CC: exim-users
Onderwerp: Re: [exim] strict_rfc821_envelopes
On Thu, 2010-05-13 at 16:59 +0100, Ian Eiloart wrote:
> --On 13 May 2010 12:42:24 +0100 Ron White <exim.ml@???> wrote:
>
> > Good afternoon list.
> >
> > In Postfix there is this directive: strict_rfc821_envelopes yes || no.
> > Is there a global Exim equivalent or do I need to form something into an
> > ACL condition?
> >
> > Grateful thanks
> > Ron
>
> It seems, from experimentation, that Exim is quite relaxed about the format
> used. I don't see any main configuration option in Chapter 14 to control
> this.
>
> I think you'll need to check the value of $smtp_command_argument or
> $smtp_command in the relevant ACL. See section 11.9 on expansion variables.
>
> $smtp_command
> During the processing of an incoming SMTP command, this variable contains 
> the entire command. This makes it possible to distinguish between HELO and 
> EHLO in the HELO ACL, and also to distinguish between commands such as 
> these:
>     MAIL FROM:<>
>     MAIL FROM: <>

>
> For a MAIL command, extra parameters such as SIZE can be inspected. For a
> RCPT command, the address in $smtp_command is the original address before
> any rewriting, whereas the values in $local_part and $domain are taken from
> the address after SMTP-time rewriting.
>
> $smtp_command_argument
> While an ACL is running to check an SMTP command, this variable contains
> the argument, that is, the text that follows the command name, with leading
> white space removed. Following the intro- duction of $smtp_command, this
> variable is somewhat redundant, but is retained for backwards compatibility.
>
>
> Perhaps the easiest thing (if you want to be strict) is to construct the
> legal argument from $sender_address, and compare it with the argument given.
>
> --
> Ian Eiloart
> IT Services, University of Sussex
> 01273-873148 x3148
> For new support requests, see http://www.sussex.ac.uk/its/help/


Thank you Ian, that is really useful on more than one level. Has anyone
ever told you that you are a guru at this Exim stuff and a very helpful
chap too :-) Thanks. Really appreciated.