Re: [exim] strict_rfc821_envelopes

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Author: Ron White
Date:  
CC: exim users
New-Topics: Re: [exim] *Suspect* Re: strict_rfc821_envelopes
Subject: Re: [exim] strict_rfc821_envelopes
On Thu, 2010-05-13 at 14:46 +0100, Peter Bowyer wrote:
> On 13 May 2010 12:42, 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?
>
> To save everyone here having to research what that option in Postfix
> does, could you tell us?
>


My sincere apologies. It's a good point as it's a bit of a Postfixism.
>From the older Postfix docs:



"Require strict RFC 821-style envelope addresses
The strict_rfc821_envelopes parameter controls how tolerant Postfix is
with respect to addresses given in MAIL FROM or RCPT TO commands.
Unfortunately, the widely-used Sendmail program tolerates lots of
non-standard behavior, so a lot of software expects to get away with it.
Being strict to the RFC not only stops unwanted mail, it also blocks
legitimate mail from poorly-written mail applications.

Default: 
        strict_rfc821_envelopes = no 


        By default, the Postfix 
SMTP server accepts any address form that it can make sense of,
including address forms that contain RFC 822-style comments, or
addresses not enclosed in <>."



Which is a little vague and RFC 821 section 4.1.2. does not really
clarify it as such. I suspect Exim probably takes care of most of this,
but without the need for this extra directive. Specifically for me I
would like to enforce <> wrapping addresses.