A few thoughts from the Boffin Igor :-)

1. Gmail behaves as follows: any outgoing messages is saved under the "Sent" tag (tags are similar to folders in other mail programs and online services, but in case of Gmail, one message can belong to more than one Tag). Even if you Cc: to yourself, I believe, it would identify that copy as the same message that is in Sent, and would not show you the duplicate in the Inbox. I suspect (although I've never tested it myself, - I am not using Gmail for mailing lists), - the same would happen with the message that comes back to your through the list. For the technically inclined, - this is based on the "Message-ID" that is formed originally by your e-mail client (or by Gmail web-service, and in some cases by the e-mail server to which your client connects).

That's regarding where your own messages go.

Now, about missing messages.
Typically, when you reply to or forward a message, it keeps track of the "parent" Message-IDs in one or two headers that are typically hidden from the normal message view (while obtaining its own unique Message-ID). (Those are References: and In-Reply-To:, and possibly 1-2 more, less common. ) This allows e-mail software to collect all messages that have common ancestors in a single thread, if you choose to use "Threaded view" (which is the default, and might not be configurable otherwise with Gmail).

However, some programs, on top of that mechanism use other signs to thread messages together. I've seen a few debates if that is reasonable or not, but some programs/services do that. Typical parameters that they use: 1. Subject: line (sans the prefixes and suffixes, such as Re:, (fwd) etc...)
2. Subject: line in combination with the "To:" line being identical to
the "Subject:" and "From:" lines, respectively in the suspected original message.
3. Matching quoted text lines from the message that you reply to.
4. A various, sometimes configurable combination of the above with Possibly some other heuristic approaches.

The reason these additional criteria are used is because sometimes the
ancestor's Message-ID's are missing. This can happen because people
do not respond by hitting "reply", or, in some cases, - because of the idiosyncratic software/services that remove those. E.g. I've read that Gmail mangles the Message-ID if you are using Outlook program to send via Gmail account/server.


I do not reply to the list messages by hitting "reply button". (This is my
idiosyncrasy, and I probably wouldn't have it done that way today but I am too lazy to change it.) As a result, many programs might show my message as being separate from the original thread (in a threaded view). Gmail will most likely keep it in the thread (through the mechanisms I outlined above).

Web-based list archive hosted by mail-archive
https://www.mail-archive.com/[email protected]/
usually tries to match it, and adds to the end of the thread, but sometimes fails doing that.

pdml.net own archive usually adds it to the thread (I suspect based on the Subject line).

I don't know what @lantic does, but it might place those messages separate from the thread. You can check that by looking in your Inbox.

I know that messages from a few PDMLers are also missing those Message-ID references. I don't remember at the moment if it's the case for Jack, but I haven't noticed that in case of Ann. Maybe she is just "the chosen" by
@lantic. ;)

This is probably much more technical than what your expected, but what can you expect from a real boffin? ;)

I hope it helps.

Cheers,

Igor



P. J. Alling Fri, 19 Oct 2018 05:42:59 -0700 wrote:

It's unfortunatly not a configuration issue.  I ended up creating a
second gmail account and building a couple of filters in Thunderbird to
get my posts to the pdml into my normal inbox. Google keeps your replies
somewhere, and they are in your inbox, on the server, they just filter
what you get in your remote client, and don't show them.  It's kind of
awful really.


On 10/19/2018 12:52 AM, lrc at red4est.com wrote:
It's likely a configuration option

On October 18, 2018 8:24:07 PM PDT, Brian Walters <apathyman at
lyons-ryan.org> wrote:
On 19 October 2018 at 02:12 Alan C <cole at lantic.net> wrote:


I now have two e-mail accounts (@lantic & g-mail) both subscribed to
PDML.
I cannot see posts from Jack, AnnSan, Igor (occasionally), Myself (&
probably some others) on @lantic but do see them on g-mail.
So, between the two accounts I now seem to have everyone covered.

However, if I reply to a g-mail post from Jack, say, it only appears
in
@lantic (& not in g-mail).

Maybe one of you boffins (like Igor?) can throw some light on this?

I'm neither a boffin or Igor and I don't use my gmail accounts for
PDML, but I
seem to recall others saying that that they don't see their own posts
when using
gmail.  I think it's a gmail 'feature' but I'm sure others can confirm.


Cheers
Brian

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