On 07/04/2022 09:49 Shawn Heisey elyograg@elyograg.org wrote:
On 2022-04-06 13:29, Marc wrote:
I was wondering if there is some way to force an imap client to 're-download' all the messages from the inbox. I can remember in the 'old days' that when the connection was dropped during a pop download, the whole inbox was re-downloaded, resulting in quite a lot of duplicates. I am looking for such action.
I have my mail in Maildir format. Here's a directory listing of one of my folders:
root@bilbo:/var/vmail/elyograg.org/elyograg@elyograg.org/.Sent# ls -al total 9428 drwxr-x--- 5 vmail mail 4096 Apr 6 22:30 . drwxr-x--- 82 vmail mail 4096 Apr 7 00:38 .. drwxr-x--- 2 vmail mail 917504 Apr 6 22:08 cur -rw-r----- 1 vmail mail 131824 Apr 5 17:12 dovecot.index -rw-r----- 1 vmail mail 7851560 Apr 6 22:30 dovecot.index.cache -rw-r----- 1 vmail mail 552 Apr 6 22:30 dovecot.index.log -rw-r----- 1 vmail mail 91520 Apr 5 17:12 dovecot.index.log.2 -rw-r----- 1 vmail mail 84 Feb 26 00:39 dovecot-keywords -rw-r----- 1 vmail mail 549725 Apr 6 22:08 dovecot-uidlist drwxr-x--- 2 vmail mail 4096 Jan 28 2003 new drwxr-x--- 2 vmail mail 69632 Apr 6 22:08 tmp
Something I discovered mostly by accident: If I delete all the files in a mail folder matching a glob pattern of dovecot* then any IMAP client that accesses it will re-download all the messages in the folder. There are nearly 11000 messages in that Sent folder. Takes a while to redownload them.
I don't know if there might be unintended side effects from deleting all those files. My mailbox seems to have survived it.
Thanks, Shawn
Removing all dovecot* files causes UIDVALIDITY to be reset, which causes your client to download all the mails.
There is easier, less expensive way to achieve this:
doveadm mailbox update
Aki