On 2/20/26 16:35, John Price via Mailman-users wrote:
I'm having trouble getting digests to work. When I try to manually
send one, it does nothing, and then the digest gets deleted (I
guess?).
If the `mailman digests` command is run without a --send or --periodic
option, it won't send any digests. See `mailman digests --help`.
Messages for a list's digest are accumulated in a mailbox at Mailman's
var/lists/<list_id>/digest.mmdf.
They are sent when the mailbox reaches the size set as the list's
digest_size_threshold and if the list's digest_send_periodic is True,
when the `mailman digests --periodic` command is run - normally run
daily via cron,. See
<https://docs.mailman3.org/en/latest/install/virtualenv.html#setup-cron-jobs>.
I would love it if the documentation explained a bit more how the
process works. How are the files gathered? What file can I backup and
later restore if I'm debugging it?
One of the handlers run in the posting pipeline is `to_digest` which
adds the message to the list's digest.mmdf file and checks if a digest
should be sent based on size.
Also, how are the digest issue and volume numbers work? Is there any
way to control that? Since I've been running digests for decades, can
I set the volume and issue to what I want so that the numbering
continues from where the other installation left off?
The issue number is incremented with each digest At intervals determined
by the list's digest_volume_frequency The issue number is reset and the
volume number is incremented. The volume can also be incremented and the
issue reset by running `mailman digests` with the `--bump` option
`
The current volume number is the list's volume attribute and the next
issue number is the list's next_digest_number attribute. These can be
manipulated via `mailman shell` or by direct manipulation of the list's
entry in the mailinglist table in the database.
--
Mark Sapiro <[email protected]> The highway is for gamblers,
San Francisco Bay Area, California better use your sense - B. Dylan
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