Re: [Evolution] Sent messages missing in search folders

[Milan Crha <mcrha redhat com>]

On Tue, 2022-08-23 at 12:45 +0100, Patrick O'Callaghan wrote:
> I think the problem may be in the interpretation of Threads->"All
> related", which doesn't appear to be documented in the Help. It's not
> something I've used so maybe someone else can offer a suggestion.
>
> Have you tried changing that to "Replies" or "Replies and Parents"?

        Hi,
my personal advice is to avoid the Include Threads whenever possible.
It adds on complexity and longers the time to finish the search. A
rough idea behind the Include Threads option is to run the search in
two phases:
1) get messages satisfying the search criteria (as if the Include
Threads is off);
2) search for messages matching the Include Threads option for those,
which satisfied the 1), but which are not part of the 1).

You can imagine how that can explode in the time (and memory) needed to
process all the messages.

The Include Threads option works per folder, not between different
folders. I though of working around this by creating a new search
folder, which would simply contain all the needed folders and then this
"unread messages with threads" search folder referencing the other
search folder, but it did not help, the search folder passes the search
term to the child folders and only gathers the results, without trying
the Include Threads on the merged set.

Just merging the Inbox with the Sent folder is trivial, but it does not
filter on the unread messages with related threads.

You can setup the mail account to store reply messages in the folder
they had been replied from, instead of in the Sent folder, but it works
only for replies, new threads started by the user won't be complete.

Not much help for this, I'm sorry. I think there exists a bug for it,
there had been people asking for this for sure, but I do not have its
link handy.

        Bye,
        Milan