Timo Sirainen wrote:
However, I noticed a strange thing: querying what would have been
deleted
doveadm -ftab fetch -A "date.saved" mailbox Trash savedbefore 7d
showed many date.saved values are clustered around the same timestamp,
even among different user's Trash mailbox.
...
I can't explain why many different users would have messages with the
same (or closeby) date.saved value.
Which mailbox format? With Maildir the date.saved is taken from
dovecot.index.cache file, and in some cases that might get dropped. If
it does, then it fallbacks to using the file's ctime.
mbox.
A further look into this reveals that the clustered date.saved values
are the earliest values for every mailbox in the system. This timestamp
is close to the time I was testing "doveadm ... -A", so the likely
explanation is that I accidentally deleted/updated these values using
some variation of doveadm, even though I remember confining my testing
to query/search/fetch. This appears to be a case of PEBKAC.
These "wrong" values shouldn't cause problems with expunge queries since
they err on the side of safety.
Thanks for the insight though.
Joseph Tam <jtam.h...@gmail.com>
