doveadm-backup(1) on Linux
The text 27649918db91, as Debian 13 (Trixie) shipped it.
Dovecot's one-way mailbox synchronization feature
Flags it lists
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--no-userdb-lookup -
-1 -
-A -
-D -
-F -
-N -
-O -
-P -
-R -
-S -
-T -
-c -
-f -
-g -
-i -
-k -
-l -
-m -
-n -
-o -
-p -
-r -
-s -
-u -
-v -
-x