On 2025-11-05 09:05, Timo Sirainen wrote:
On 2. Nov 2025, at 13.19, Gerhard Wiesinger via dovecot<[email protected]>
wrote:
Hello,
Regarding dovecot upgrade from 2.3.x to 2.4.x and mailbox_alias plugin:
I've already converted my config and scripts but I'm still missing this config
change:
plugin {
mailbox_alias_old = Spam
mailbox_alias_new = Junk
}
I saw in the
linkhttps://doc.dovecot.org/2.4.0/installation/upgrade/2.3-to-2.4.html
mailbox-alias plugin Depending on the use case, replacement may be the
mailbox_special_use mailbox setting and/or Sieve filters.
Any ideas what's the best alternative?
Why do you need/want the mailbox_alias plugin? There is no direct replacement.
But if you configure e.g.:
namespace inbox {
mailbox Junk {
special_use = \Junk
}
}
Then modern clients should use it. The worst part of mailbox_alias plugin was
that it caused the mailbox content to be duplicated on client side for both old
and new mailboxes.
Hello Timo,
I've already configured:
mailbox Spam {
auto = subscribe
special_use = \Junk
}
Is that additionally as an alias possible?
mailbox Junk {
auto = subscribe
special_use = \Junk
}
I think it was for compatibility issues with some clients (don't
remember the reason anymore) which have different Spam folders.
Another question, is the following correct:
mail_home = /home/vmail/%n
mail_location = maildir:~/Maildir
=>
mail_home = /home/vmail/%{user | username}
mail_driver = maildir
mail_path = ~/Maildir
This is the same as above.
mail_inbox_path = ~/Maildir
This isn't harmful, but it doesn't do anything.
(Especially mail_inbox_path, I don't have a ".INBOX" directory currently, I
guess .INBOX is now default. How to deal with this?)
This I don't understand. It's not using .INBOX by default, and with or without
mail_inbox_path it's not using .INBOX (I just tested to be sure). If you see
.INBOX then I need to see the full doveconf output.
Is
mail_inbox_path = ~/Maildir/.INBOX
then new default for?
mail_inbox_path = ~/Maildir
(so that Inbox will be in ~/Maildir/.INBOX)
If yes, how will be this be handled with existing configuration where
the Inbox isn't there, see below?:
(will they be handled in the old style, moved or are then 2 separeted
mailboxes existing?)
Inbox directory is currently a directory directly under
/home/vmail/$user/Maildir/:
e.g.:
/home/vmail/$USER/Maildir/cur/
/home/vmail/$USER/Maildir/new/
/home/vmail/$USER/Maildir/tmp/
Subfolders are in dot notation e.g. /home/vmail/$USER/Maildir/.mysubfolder
I guess the new (default) structure would be symmetrically for the Inbox
folder, e.g.
/home/vmail/$USER/Maildir/.INBOX (+subdirs like cur)
Is that correct with the setting mail_inbox_path = ~/Maildir/.INBOX?
That would require a manual move of the subdirs into ~/Maildir/.INBOX
for all users, correct?
(That means that incremental backup data gets a peak if not deduplicated)
Thnx.
Ciao,
Gerhard
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