OSEC

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Re: valid_hostname chokes on trailing dot

From: Chad Whitacre (chadzetaweb.com)
Date: Wed Oct 01 2008 - 13:08:38 CDT


Wietse,

> A mis-understanding as in posting a patch that "corrects"
> Postfix behavior without adequate justification.
>
> According to RFC 5312 section 2.3.5, SMTP uses the dot as
> SEPARATOR not TERMINATOR in domain names.

   o I raised a legitimate issue. SMTP's use of "FQDN" is not
      widely known. Afaict, it was not even formally defined until
      RFC 5321 was published today--during our conversation.

   o I provided a patch.

   o I apologized quickly for calling this behavior a bug.

   o I never used the word "corrects" or otherwise implied that
      Postfix has it wrong.

   o I accepted your and Noel's clarifications about the use of
      "FQDN" in SMTP.

   o I followed your advice in searching the IETF-SMTP list for
      more info.

   o I updated the Wikipedia article on FQDN's accordingly.

   o Here was my misunderstanding: I thought you posted the
      message about RFCs 5321 and 5322, and were asking me to
      cite these in the Wikipedia article. My fault, sorry.

   o I asked for help in finding the specific reference.

   o I found the reference myself.

   o I updated Wikipedia again.

I'm human, I make mistakes, and I hope I apologize for them. But
I'm not an idiot and I'm not malicious. I'm on your side. Don't
you think you could lighten up a little?

chad

Wietse Venema wrote:
> Chad Whitacre:
>> Wietse,
>>
>> > Sorry, that is backwards.
>> >
>> > If you want to "correct" Postfix behavior, then you need to
>> > provide supporting documentation that Postfix is in error.
>> >
>> > So please point out the relevant sections of email related
>> > RFCs, otherwise I suggest that you refrain from posting
>> > "corrections".
>>
>> We've got a misunderstanding. I accept your statement that FQDN
>> means something different in SMTP than DNS. I'm not trying to
>> correct Postfix behavior, I'm trying to find the best reference
>> to add to Wikipedia's article on FQDNs. If I'm not mistaken, 5321
>> 2.3.5 is this reference (and, coincidentally, it appears that
>> 5321 is being published as we speak). Yes?
>
> A mis-understanding as in posting a patch that "corrects" Postfix
> behavior without adequate justification.
>
> According to RFC 5312 section 2.3.5, SMTP uses the dot as SEPARATOR
> not TERMINATOR in domain names.
>
> Wietse
>