Re: Gnus generates an invalid To header

[Reiner Steib <reinersteib+gmane@imap.cc>]

On Mon, Nov 26 2007, Elias Oltmanns wrote:

> Tassilo Horn <tassilo@member.fsf.org> wrote:
>> Reiner Steib <reinersteib+gmane@imap.cc> writes:
>>> By edebugging `message-idna-to-ascii-rhs-1', I found that it calls
>>> (idna-to-ascii rhs) with `rhs' = "" because the right hand side of
>>> "tierklinikkaiserbergduisburg" is the empty string.  Maybe message
>>> should just return the same header instead if calling `idna-to-ascii'
>>> if `rhs' is empty?
>>
>> With "the same header" you mean the complete bogus Reply-To header?  

In the end, yes.  (More specifically, I meant
`message-idna-to-ascii-rhs-1'.)

>> I don't think that would be good, because then it would possibly be
>> sent to a local user.  And sending to a wrong recipient is much
>> worse than not sending at all.
[...]
> Your concern is legitimate, but it is a feature request rather than
> a bug fix.  After all, the sender is ultimately responsible for
> setting a valid Reply-To header and, by failing to do so, positively
> asks for trouble.

ACK

> That said, it might still be worthwhile to implement the feature you are
> asking for.  I recollect two incidents where I tried to reply to emails
> only to find out that the Reply-To header was bogus.  However, there
> seem to be too many ways to screw the Reply-To header in a way that
> results in a syntactically correct but effectively bogus header.  If a
> user decides to use fully qualified email addresses only (after all,
> there is bbdb and auto completion), gnus can generally warn before
> shipping off messages to addresses without a domain part.  This is about
> all I can think of right now to tacle this issue and its probably not a
> good default setting.

I agree.  Such a feature could be provides via
`message-syntax-checks'.  But it should be disabled by default, I
think.  Hm, probably it is already there: See
`message-bogus-recipient-p', `message-bogus-address-regexp', ...

Bye, Reiner.
-- 
       ,,,
      (o o)
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