From Newsgroup: alt.os.linux.ubuntu

I just sent an email to somebody, asking for more information. After
doing so, I saw at the bottom of the message pane a message saying:
Replies to the thread "CS Chapter" will not be shown.

Sure enough, the email to which I was replying can no longer be seen.
I appear to have clicked the wrong thing. How do I undo this?

I tried clicking on the message, but that did nothing. (I couldn't
even select the text to copy into this post.)

Thanks,
--
Michael F. Stemper
This post contains greater than 95% post-consumer bytes by weight.
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: alt.os.linux.ubuntu

On Sun, 6/22/2025 10:54 AM, Michael F. Stemper wrote:

I just sent an email to somebody, asking for more information. After
doing so, I saw at the bottom of the message pane a message saying:
  Replies to the thread "CS Chapter" will not be shown.
  Sure enough, the email to which I was replying can no longer be seen.
I appear to have clicked the wrong thing. How do I undo this?

I tried clicking on the message, but that did nothing. (I couldn't
even select the text to copy into this post.)

Thanks,

https://support.mozilla.org/en-US/kb/ignore-threads

"Can't undo ignore thread"

https://support.mozilla.org/en-US/questions/1126760

*******

The messages themselves, have a couple header lines added,
and those lines contain status bitfields. They indicate
whether the message is read, whether the message is deleted
(but not yet compacted), and so on. Someone in another
group, claims to have used SED to undelete a box where
the customer had deleted the whole thing. So it's possible
to make changes to an MBOX that way.

But it's better to try the "tool way" first.

If you exit Thunderbird (and check that the process really
is exited), now is a good time to back up the
Profile folder, before carrying out any other actions.
Then, if say, you accidentally compacted the folder and
made things worse, you could just restore the folder
state (again, with Thunderbird exited) and try your
technique again.

Paul
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: alt.os.linux.ubuntu

On 22/06/2025 12.59, Paul wrote:

On Sun, 6/22/2025 10:54 AM, Michael F. Stemper wrote:

I just sent an email to somebody, asking for more information. After
doing so, I saw at the bottom of the message pane a message saying:
  Replies to the thread "CS Chapter" will not be shown.
  Sure enough, the email to which I was replying can no longer be seen.
I appear to have clicked the wrong thing. How do I undo this?

I tried clicking on the message, but that did nothing. (I couldn't
even select the text to copy into this post.)

Thanks,

https://support.mozilla.org/en-US/kb/ignore-threads

"Can't undo ignore thread"

https://support.mozilla.org/en-US/questions/1126760

*******

That did it; thanks. Since the email in question involved asking
somebody why he hadn't responded to a request for information
yet, this could have been a problem.

Until today, I didn't even know that you could kill threads on the
email side of T-bird.

The messages themselves, have a couple header lines added,
and those lines contain status bitfields. They indicate
whether the message is read, whether the message is deleted
(but not yet compacted), and so on. Someone in another
group, claims to have used SED to undelete a box where
the customer had deleted the whole thing. So it's possible
to make changes to an MBOX that way.

But it's better to try the "tool way" first.

100% agree.
--
Michael F. Stemper
Outside of a dog, a book is man's best friend.
Inside of a dog, it's too dark to read.

--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: alt.os.linux.ubuntu

Paul wrote:

The messages themselves, have a couple header lines added,
and those lines contain status bitfields. They indicate
whether the message is read, whether the message is deleted
(but not yet compacted), and so on. Someone in another
group, claims to have used SED to undelete a box where
the customer had deleted the whole thing. So it's possible
to make changes to an MBOX that way.

You absolutely can do it with sed. I user a perl script that I created
to do it to recover damaged mbox "folders" but the principle is the
same, with caveat you mentioned "DO NOT COMPACT THE FOLDER". If you
compact the folder you are doomed because TB re-indexes the file
removing any deleted messages. Here is an explanation of the controlling headers <https://vincent.bernat.ch/en/x-mozilla-status>
--
Take care,

Jonathan
-------------------
LITTLE WORKS STUDIO
http://www.LittleWorksStudio.com
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: alt.os.linux.ubuntu

On Sun, 22 Jun 2025 21:57:50 -0400, Jonathan N. Little wrote:

You absolutely can do it with sed. I user a perl script that I created
to do it to recover damaged mbox "folders" but the principle is the
same, with caveat you mentioned "DO NOT COMPACT THE FOLDER". If you
compact the folder you are doomed because TB re-indexes the file
removing any deleted messages.

I don’t store any of my emails in a client-specific format. Instead, I run an IMAP server (Dovecot), and have the email-client configured to access
my messages via that -- even if the IMAP server is running under my user
ID and storing the messages in my home area anyway.

This way, I can easily switch email clients, and even access the same
email store from another machine. Or use IMAP client scripts to perform operations on the mail store.

Another benefit is that the messages are stored in a standard format
(Maildir) which can be manipulated by a range of tools.
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: alt.os.linux.ubuntu

Lawrence D'Oliveiro wrote:

On Sun, 22 Jun 2025 21:57:50 -0400, Jonathan N. Little wrote:

You absolutely can do it with sed. I user a perl script that I created
to do it to recover damaged mbox "folders" but the principle is the
same, with caveat you mentioned "DO NOT COMPACT THE FOLDER". If you
compact the folder you are doomed because TB re-indexes the file
removing any deleted messages.

I don’t store any of my emails in a client-specific format. Instead, I run an IMAP server (Dovecot), and have the email-client configured to access
my messages via that -- even if the IMAP server is running under my user
ID and storing the messages in my home area anyway.

This way, I can easily switch email clients, and even access the same
email store from another machine. Or use IMAP client scripts to perform operations on the mail store.

Another benefit is that the messages are stored in a standard format (Maildir) which can be manipulated by a range of tools.

Okay even if IMAP Thunderbird caches the email in MBOX format like POP3
but just synchronizes with the server than just downloading messages and expunging them on the server store. IMAP local store is different than
POP3 in Thunderbird. It is PROFILEDIR/ImapMail/MAILSERVER instead of PROFILEDIR/Mail/MAILSERVER

Here is what one suggested: <https://serverfault.com/questions/259927/recovering-deleted-emails-on-imap-server-with-thunderbird>

However, what I would do that is easier than creating dummy accounts and offline and stuff is to:

1) Exit Thunderbird
2) Navigate to the inbox for that account:
PROFILEDIR/ImapMail/MAILSERVER/INBOX
3) Copy that file to Local Files:
PROFILEDIR/Mail/'Local Folders'/
a) I would rename it to "Recovery" or something similar
b) I would also make another copy somewhere else just as a CYA
4) Edit file to change X-Mozilla-Status & X-Mozilla-Status2 flags to
reset all messages by whatever method you choose
5) Start Thunderbird and check the "Recovery" folder in "Local Folders"
and find your messages
6) I believe you can then drag and drop them back into your account's
Inbox. I believe is would work in IMAP as is absolutely does with POP3 accounts, because I have done it for people. But either way if you don't
delete it they would be accessible in "Local Folders"

HTH
--
Take care,

Jonathan
-------------------
LITTLE WORKS STUDIO
http://www.LittleWorksStudio.com
--- Synchronet 3.21a-Linux NewsLink 1.2

From Newsgroup: alt.os.linux.ubuntu

On Tue, 24 Jun 2025 11:12:01 -0400, Jonathan N. Little wrote:

Lawrence D'Oliveiro wrote:

I don’t store any of my emails in a client-specific format. Instead, I
run an IMAP server (Dovecot), and have the email-client configured to
access my messages via that -- even if the IMAP server is running under
my user ID and storing the messages in my home area anyway.

This way, I can easily switch email clients, and even access the same
email store from another machine. Or use IMAP client scripts to perform
operations on the mail store.

Another benefit is that the messages are stored in a standard format
(Maildir) which can be manipulated by a range of tools.

Okay even if IMAP Thunderbird caches the email in MBOX format like POP3
but just synchronizes with the server than just downloading messages and expunging them on the server store.

That way, you can ignore the MUA’s copy of the messages as just being a cache: the authoritative copy is always the IMAP message store.
--- Synchronet 3.21a-Linux NewsLink 1.2