Closed Bug 20386 Opened 25 years ago Closed 25 years ago

Don't thread on empty subject

Categories

(MailNews Core :: Backend, defect, P3)

x86
Linux

Tracking

(Not tracked)

VERIFIED DUPLICATE of bug 18789

People

(Reporter: rzach, Assigned: Bienvenu)

Details

Until feature bug 18789 (threading on references, not by subject) is
implemented, it would be good if messages with empty subject were NOT treated as
one thread.  I'm sure lots of people get email without subject lines (or subject
lines that read "Re: your mail" or "Unspecified subject"); these currently all
get buried in one thread.
Isn't this the same issue? I don't understand how this is different from 18789?
18789 asks for a preference whether threading should be on subject or
references.  Then, even when threaded on subject, empty subjects should not be
threaded.  I don't understand how threading on subject is importantly different
from sorting on subject, and so why one would do it this way at all (except that
it's easier to implement). If that's how it's going to be, however, then not
threading on empty subjects at least would be nice.
Assignee: phil → bienvenu
> I don't understand how threading on subject is importantly different
> from sorting on subject

Well, one is a structured thread view and the other is flat. That difference
seems important :-)

> and so why one would do it this way at all (except that it's easier to
> implement).

No, actually, it's because some crummy clients don't use References. So, to
allow a threaded view, we infer the thread based on the subject.

I'm not sure this seems really differentiated from bug 18789. I'll reassign to
David B in case a special case for empty subject seems worthwhile to him. If
not, let's put it on the [help wanted] list.
So if I understand correctly, the thread view by default is based on references,
and in addition by subject (just in case the sender's client lost the
references); 18789 proposes that the user can turn the subject part off.  That
would presumably take care of my problem, too.
Yes, correct on both counts.
Status: NEW → RESOLVED
Closed: 25 years ago
Resolution: --- → DUPLICATE
*** This bug has been marked as a duplicate of 18789 ***
Status: RESOLVED → VERIFIED
ok, I'll mark verified as a duplicate then.
Product: MailNews → Core
Product: Core → MailNews Core
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