On 13/05/2026 20:31 EEST Bryan Simmons via dovecot <dovecot@dovecot.org> wrote:

Moving postfix and dovecot to a new server including all current users and emails.  There exists several dovecot files in each user mail directory:

dovecot.index dovecot.index.cache dovecot.index.log dovecot-keywords dovecot.list.index.log dovecot.mailbox.log dovecot-uidlist dovecot-uidvalidity dovecot-uidvalidity.612d3d34

Should these files be migrated also or will dovecot recreate them as needed?

Thank you, Bryan

https://doc.dovecot.org/2.4.4/core/admin/migration.html#migrating-mailboxes

I would recommend seeing this. Depending on your mailbox format, it can be important that those files are copied, but I would suggest doveadm/imap based migration.

Aki