I see same symptoms when opening a mail in thunderbird 2 or 3 weeks after I
received it, without moving it in another folder.
Burt using "repair folder" in TB, I get it back, so for me it looks more like a
TB cache problem.
hm. 'repair' here does nothing for me.
looking at my current TBird settings for disk/cache/offline/subscription,
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
i _thought_ that^^ should eliminate local caching.
sounds like, perhaps, i've misconfigured, or am missing, something ...
