Re: [Exim] RFC 2821 and "headers_sender_verify"/"headers_che…

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著者: Dave C.
日付:  
To: Suresh Ramasubramanian
CC: Frank Elsner, exim-users, Mate Wierdl
題目: Re: [Exim] RFC 2821 and "headers_sender_verify"/"headers_checks_fail"
On Mon, 14 May 2001, Suresh Ramasubramanian wrote:

> * [Frank Elsner on 14/05/01 13:23 +0200]
>
> > Currently I have
> >                     headers_sender_verify = yes
> >                     headers_checks_fail = yes
> > and a now list owner complains about refused messages with unresolvable
> > domain in the "From: " line of a messages sent via his mailing list.

>
> RFCs were not invented to be read by morons, as someone said. You are
> perfectly free to reject mail from unresolvable domains, and this guy is
> nitpicking.
>
> >    When RFC 822 format [7, 32] is being used, the mail data include the
> >    memo header items such as Date, Subject, To, Cc, From.  Server SMTP
> >    systems SHOULD NOT reject messages based on perceived defects in the

>
> He's confusing the header from with the envelope from, which is what exim
> filters on.


Actually, the options he has set causes it to also check the Header
from.

However, there is no valid reason for a sender to supply a non-existent
domain in the From: header, and in fact, the most common reason (other
than just complete ignorance on the part of someone associated with the
sending system) is becuase the message is a spam. So, blocking messages
that dont have a valid address in the From header is a good thing.


>
> > Is my setting "illegal" ?
>
> No.
>
>


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