Message attachments, relocated with Tbird in Dovecot maildir store, not openable; reversible by moving BACK to inbox?
I run
Name Thunderbird Version 91.7.0 Build ID 20220315143251 Distribution ID User Agent Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0 Thunderbird/91.7.0 OS Linux 5.16.18-200.fc35.x86_64 #1 SMP PREEMPT Mon Mar 28 14:10:07 UTC 2022
on
lsb_release -rd
Description: Fedora release 35 (Thirty Five)
Release: 35
Accounts are IMAP, connecting to a Dovecot backend
dovecot --version
2.3.17.1 (476cd46418)
also on
lsb_release -rd
Description: Fedora release 35 (Thirty Five)
Release: 35
Dovecot's mail store is config'd as maildir
mail_location = maildir:/data/vmail/%d/%n/Maildir:CONTROL=/data/vmail/%d/%n/_control:INDEX=/var/vmail-index/%d/%n:LAYOUT=fs:UTF-8
Mail is delivered to the IMAP store via lmtp transport from a Postfix agent
Mail, with attachments (e.g., .PDF) is received OK.
It's readable, and any/all message attachments can be opened, read and/or saved to disk (e.g. PDF)
If, in TBird client, i MOVE the message to any other folder in the IMAP hierarchy, the message relocates, as expected.
The message itself is still readable, and _appears_ to have the attachment.
But, attempting to OPEN the *attachment*, with e.g. Okular, from within the relocated message pops up a dialog,
"Could not open file:///tmp/pid-28435/manual_13542AE.pdf"
and saving it to Desktop,
ls -al manual_13542AE.pdf
-rw-r--r-- 1 pgnd pgnd 27 Apr 1 06:01 manual_13542AE.pdf
file manual_13542AE.pdf
manual_13542AE.pdf: data
then opening it similarly returns
"Could not open file:///home/pgnd/Desktop/manual_13542AE.pdf."
Moving the message, via TBird, **BACK** to the Inbox, cures the problem --
-- I can immediately, again, open & save the attachments.
Others see a similar issue,
https://dovecot.org/pipermail/dovecot/2022-April/124434.html
TBird cache management conflict/misconfiguration is suspect ...
Hints as to cause/fix of this attachment issue? Or event what/where, specifically, to log? Does message synchronization need to be turned off completely?
My current TBird settings for disk/cache/offline/subscription include,
browser.cache.check_doc_frequency, 1 browser.cache.compression_level, 0 browser.cache.disk.capacity, 0 browser.cache.disk.enable, false browser.cache.disk.max_entry_size, 51200 browser.cache.disk.smart_size.enabled, false browser.cache.disk.smart_size.first_run, false browser.cache.disk.smart_size.use_old_max, true browser.cache.disk_cache_ssl, false browser.cache.memory.enable, false browser.cache.memory.max_entry_size, 5120 browser.cache.offline.capacity, 512000 browser.cache.offline.enable, true
mail.server.default.offline_download, false mail.server.default.autosync_offline_stores, false offline.download.download_messages, 2 mailnews.offline_sync_mail, false mailnews.offline_sync_news, false mailnews.offline_sync_send_unsent, false mailnews.offline_sync_work_offline, false offline.autoDetect, false offline.send.unsent_messages, 2 offline.startup_state, 0
mail.server.default.check_all_folders_for_new, true mail.check_all_imap_folders_for_new, true mail.imap.hide_unused_namespaces, false mail.imap.auto_unsubscribe_from_noselect_folders, false mail.server.default.using_subscription, false mail.imap.hide_unused_namespaces, false mail.server.default.override_namespaces, true