Adding list archives to

We collect kernel archives on using public-inbox. While any mailing list that is used for Linux kernel development can qualify, we give priority to mailing lists served via

Since has existed for over 20 years, there is one important caveat we require before adding an existing list to – you must provide as complete of an archive as possible. This wiki page describes the best procedure to follow.

Requesting archival of an existing list

  • Send a request to stating that you would like to have a mailing list added to
  • Wait till you receive a response, indicating that:
    • Your request is approved
    • We have subscribed the collector to the list and started collecting preliminary messages

Collecting archive donations

You will need to provide an as-complete-as-possible archive of list messages. If you have been subscribed to the list for a while, you can start with your own archives.

Exporting archives from GMail

If you’ve been subscribed to the list via GMail, it is very easy to collect the initial set of archives.

  • Start by creating a label

    • Gear->Settings
    • Select the “Labels” tab
    • Click “Add label”
    • Give it a name like “export-[listname]”
  • Switch to “Filters and blocked addresses” tab

    • Click “Create a new filter”

    • In the pop-up window, put the list address in the “Include these words” field

      • This is better than using the “List-Id” because doing so will exclude your own messages sent to that list
      • Do not worry, if anything extra is caught in this sweep, it will get filtered out during the next step
    • Click the “Search” button to make sure this looks sane

    • Click the dropdown arrow in the search field to bring up the popup again

    • Choose “Create filter”

    • Check the box “Apply the label”

      • Choose the label you created in the previous step
      • MAKE SURE you check “also apply filter to matching conversations”
    • Click “Create filter”

    • Wait till you get “Your filter was created” response (big lists will take a while)

  • Go to Google’s Data takeout.

    • Click “Select none” to uncheck everything
    • Locate the “Mail” entry and enable it
    • Click on “All mail” and choose “Select labels”
    • Uncheck all labels except the one you created in the previous step
    • Scroll to the bottom of the page and choose “Next”
    • Choose the archive format you prefer (probably “.tar.gz”)
    • The maximum size doesn’t really matter, so leave it at the default setting
    • Choose “Send download link via email”
    • Click “Create archive”

Wait till you receive the download link email (may take a while) and follow the instructions you receive. The archive should contain one or several files in .mbox format that you need. Extract them and proceed to the next section.

Sanitizing the archive

We provide a list-archive-maker script that will remove unnecessary headers from the mbox file and make sure that all messages in it belong to the mailing list.

Example with

mkdir ~/linux-kernel-announce
./ -s export-linux-kernel-announce.mbox \
    -e ~/linux-kernel-announce \
    -k ~/linux-kernel-announce-known-ids.txt \

This will sanitize the archives and put them into ~/linux-kernel-announce in your home directory.

Soliciting archives from others

Once you have your initial archive, you can solicit donated archives from others, who may have been subscribed to the list for longer, or have messages that did not get delivered to you for some reason.

You will need the know-ids.txt file from the previous step, to make sure that others don’t send you messages you already have.

Send a message to the list, something like this (edit to your liking):

Hi, everyone:

I'm working to add this list to As one of prerequisites
they require that we provide full existing archives of all list messages
(or, at least, as complete as possible). I've collected mine already, but
would really appreciate if you could pitch in from your own collection.

Just follow the instructions on this page:

I've attached the list of message-ids that I already have. You'll need it
during the archive sanitization process to pass to the -k switch.

Please tar up and xz -9 the resulting directory with mbox files and send
the archive to me so I can add it to what I already have.


Merging multiple archives into one

If you receive any archives, you can merge them with what you already have using the same script. Make sure you’re pointing at the same known-ids.txt file as the one you attached to the solicitation email, otherwise you will have unnecessary duplicate entries:

./ -s dir-with-mbox-files/* \
    -e ~/linux-kernel-announce \
    -k ~/linux-kernel-announce-known-ids.txt \

Send the archive to helpdesk

Once you’ve done your best collecting archives, tar them up and compress them:

tar cf full-archives.tar dir-with-mbox-files
xz -9 full-archives.tar

If the resulting file is smaller than a few MB, you can attach it to the follow-up email to If the archive is larger than that, please upload it to a file sharing service, such as Google Drive:

  • Upload the .tar.xz file to
  • Right-click on the file name and choose “Get shareable link”
  • Click on “Sharing settings” and make sure that it is set to “Anyone with the link”
  • Paste the link in the email response to

The administrators will combine the archive they receive from you with the messages they have pre-collected, to make sure there is no interruption between when your archive collection was completed and when public-inbox starts receiving new messages. You will be notified when the mailing list is ready to be accessed via

Can we use mailman archives?

We can use mailman’s pipermail archives, but it’s best if it’s done as a final filler for anything not collected elsewhere, for these reasons:

  • Mailman’s pipermail .gz archives are not, technically, valid mailboxes (they don’t properly escape “From ” in message bodies). They must be mangled in order to be properly imported.
  • They have bare minimal headers that don’t include any “Received” lines, original recipients, cc’s, or List-ID.
  • They mangle the mime structure of the message to scrub any attachments, including digital signatures.
  • They escape email addresses to make @->” at ” replacements, which must then be replaced back.

We suggest you proceed with archive collection per above, and then fill in any missing bits with pipermail archives as the last step (the script has automated functionality to do this).