Groups | Search | Server Info | Login | Register

Groups > alt.comp.software.seamonkey > #8558

Re: When are Message Headers retreived??

Show all headers | View raw

On Tue, 5 May 2026 20:42:11 +1000, Daniel70 wrote:

> In eternal-september.support, there is a discussion going on about when 
> Message Filters are applied to a message/newsgroup. The thread is ...
> 
> Maximum number of crossposts allowed on eternal-september?
> 
> I've altered that Subject: to ....
> 
> OT: When is the Message Body retreived from the Server?? was Re: Maximum 
> number of crossposts allowed on eternal-september?
> 
> Yesterday (4th May), Mickey posted (in part) ....
> 
> Quote
> Since the Newsgroups header typically is not included in the xover,
> isn't this an expensive filter that doesn't work until you retrieve
> the body?
> End Quote
> 
> to which I replied ...
> 
> Quote
> Sorry. WHAT?? I could be wrong but ....Isn't the Header AND the Body of 
> a message retrieved from the Server in the one go .... rather that the 
> above seeming to suggesting the Header is retrieved and THEN the Body is 
> (maybe) retrieved??
> End Quote
>
> So, when I click on a Newsgroup in the Server Pane of SM's Mail and 
> Newsgroups screen and the various Threads are listed in the Threads pane 
> (i.e. one thread I see listed here is 'How can I move the "open new tab" 
> Button?' posted by Hank back on the 19/04/2026'), but, without clicking 
> on that line in the Threads pane, have I actually downloaded anything of 
> the message header so that a filter can be applied to any lines in the 
> Header information of a particular message??

You have downloaded only a SUBSET [^1] of the header fields, for all 
messages in the threads pane.  

> Or is the Message Header information (and the Message content) ONLY 
> retreived from the News Server (E-S in my particular case) when I select 
> a particular Message in the Threads pane??

The header fields which are NOT in the subset (and the message content) 
are only retrieved when you select a message (or if you have selected 
the group for offline use, when you 'Download Now').


You can enable NNTP logging in SeaMonkey and check the log for yourself 
to see what it is doing.  That way you won't have to trust people on 
Usenet.
<https://kb.mozillazine.org/Session_logging_for_mail/news>
<https://wiki.mozilla.org/MailNews:Logging>


The NNTP log will you this:

When you enter a group with (say) 100 new posts, SeaMonkey will use 
a single XOVER command to download a subset [^1] of header fields 
for all 100 posts in one go.

To download the message content will take 100 separate goes, with a 
separate ARTICLE command for each post.


____
FOOTNOTE

[^1]  Which header fields are in this subset, is defined in the NNTP
      specifications here:

      RFC2980 section 2.8
      <https://datatracker.ietf.org/doc/html/rfc2980#section-2.8>

      RFC3977 section 8.3.2
      <https://datatracker.ietf.org/doc/html/rfc3977#section-8.3.2>



-- 
Kind regards
Ralph Fox
🦊️

It’s not good praiſing a ford till a man be over.

Back to alt.comp.software.seamonkey | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

When are Message Headers retreived?? Daniel70 <daniel47@nomail.afraid.org> - 2026-05-05 20:42 +1000
  Re: When are Message Headers retreived?? Ralph Fox <-rf-nz-@-.invalid> - 2026-05-06 08:52 +1200
    Re: When are Message Headers retreived?? Daniel70 <daniel47@nomail.afraid.org> - 2026-05-06 20:15 +1000
      Re: When are Message Headers retreived?? Ralph Fox <-rf-nz-@-.invalid> - 2026-05-07 17:17 +1200
        Re: When are Message Headers retreived?? Daniel70 <daniel47@nomail.afraid.org> - 2026-05-07 20:49 +1000

csiph-web