Re: inacccurate threading: multiple topics in one thread

From: john gibb (jgibb1_at_earthlink.net)
Date: 10/29/04


Date: Fri, 29 Oct 2004 00:32:27 GMT

Hi,

1) can one easily alter the Message-ID before replying or forwarding?

2) could you elaborate on "The same doesn't hold true for e-mail replies."?

thanks

-john

"Vanguardx" <see_signature> wrote in message
news:Ovcy3bQvEHA.2568@TK2MSFTNGP11.phx.gbl...
> "john gibb" <jgibb1@earthlink.net>
> wrote in news:rC6gd.4707$kM.4337@newsread3.news.pas.earthlink.net:
>> Hi,
>>
>> OE 6 does not always group threads correctly. If you choose 'View |
>> Current View | Group Messages by Conversation', sometimes one thread
>> will contain more than one topic.
>>
>> For example, here is a 'thread' I noticed this morning:
>>
>>
>> RE: [amibroker] Amibroker startup
>> Re: [amibroker] Amibroker startup
>> [amibroker] Tick back fill - Esignal
>> Re: [amibroker] Tick back fill - Esignal
>> Re: [trading] Re: [amibroker] Tick back fill - Esignal
>>
>> Any thoughts?
>>
>> thanks
>>
>> -john
>
> First, the Message-ID header is optional. Not all e-mails sent will have
> this header. Also, the message IDs do not get chained together on
> replies. For NNTP (newsgroups), the original post gets an ID string in
> its Reference header. A reply to that post shows the original posts
> reference ID along. A reply to that reply shows the original reference ID
> and the first reply's reference ID. The process continues so you can
> track the chain of replies. The same doesn't hold true for e-mail
> replies.
>
> While each e-mail also gets its own message ID string (after it is sent),
> it doesn't reference the message ID of the message to which it replies, so
> you cannot chain them together using their message IDs. A References or
> In-Reply-To header can be specified to identify the message ID of the post
> to which you reply, but these are optional fields so the e-mail client may
> not add them. So there is often very little to group the messages other
> than by the content of their Subject header (after stripping out a "Re:"
> prefix, if there is one). As a result, grouping "By Conversation Topic"
> (where Topic is the Subject header) often results in a poor grouping if
> the Subject headers within a thread aren't unique.
>
> Outlook Express' own help says, "Conversations are grouped according to
> the title of the original message." Without seeing the headers for the
> messages with different titles that got grouped together, I cannot say why
> "[amibroker] Amibroker startup" got grouped with "[amibroker] Tick back
> full - Esignal". Maybe some replies did include the References or
> In-Reply-To headers and someone changed the Subject header but the thread
> tracking was still intact using the other headers. Although OE's help
> says it groups by title, it might try to group by References and/or
> In-Reply-To, too. There might be something in the headers that will clue
> you in on why OE is grouping together into a thread those messages that
> have different titles.
>
> Second, the Message-ID header is added when the e-mail client connects to
> the mail server to send the message. So your local copy in the Sent Items
> folder won't have the Message-ID header. Although the copy doesn't get
> moved from the Outbox to the Sent Items folder until it gets sent, that
> copy won't yet have a Message-ID header added to it.
>
> --
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