Re: Change default junk folder

Well I don't really want dynamic behavior, my ideal situation is to just 
have all accounts use Junk as the folder name so I don't have to do 
that, but if that's not really a supported setup then I'm left with 
either dynamic folders or migrating all my existing accounts to using 
the Spam folder, neither of which are ideal IMO.

On 8/10/26 12:14 AM, Quan tran hong wrote:
> Hi,
>
>> My main concern isn't the clients as they are using spam
> correctly, it's all my mailet rules on the server for what folders to
> send spam to that are my problem. They are targeting the junk folder by
> name
>
> Simple solution in my opinion: change them to target Spam mailbox, and have
> old user adapt from Junk to Spam.
>
>> is there a better way to setup my mailets to dynamically pick the
> right folder without having to write something custom?
>
> If you insist on this dynamic behavior, we can leverage logic customization
> in *mailetcontainer.xml.*
>
> E.g., if the mail is spam and the recipient has the Junk mailbox (old
> users), then store the mail in Junk. Otherwise, store in the Spam mailbox.
>
> ```xml
> <matcher name="spam-and-junk-exists"
>           match="org.apache.james.mailetcontainer.impl.matchers.And">
>    <matcher match="IsMarkedAsSpam"/>
>    <matcher match="MailboxExists=Junk"/>
> </matcher>
>
> <matcher name="spam-and-junk-does-not-exist"
>           match="org.apache.james.mailetcontainer.impl.matchers.And">
>    <matcher match="IsMarkedAsSpam"/>
>    <matcher match="org.apache.james.mailetcontainer.impl.matchers.Not">
>      <matcher match="MailboxExists=Junk"/>
>    </matcher>
> </matcher>
>
> <mailet match="spam-and-junk-exists" class="WithStorageDirective">
>    <targetFolderName>Junk</targetFolderName>
> </mailet>
>
> <mailet match="spam-and-junk-does-not-exist"
>          class="WithStorageDirective">
>    <targetFolderName>Spam</targetFolderName>
> </mailet>
> ```
>
> Note: MailboxExists would need to be implemented as a custom matcher,
> because it is not currently one of James’s standard matchers. It would
> check mailbox existence separately for each recipient.
>
> Quan
>
>
> On Mon, Aug 10, 2026 at 12:05 PM Scoopta via server-user <
> [email protected]> wrote:
>
>> I went from 3.7.5 to 3.9.0 a little earlier this year, however I've been
>> running this james setup continuously since 2017 so my oldest accounts
>> are quite old. My main concern isn't the clients as they are using spam
>> correctly, it's all my mailet rules on the server for what folders to
>> send spam to that are my problem. They are targeting the junk folder by
>> name, is there a better way to setup my mailets to dynamically pick the
>> right folder without having to write something custom?
>>
>> On 8/9/26 8:57 PM, Quan tran hong wrote:
>>> Hi,
>>>
>>> I guess you migrated from a very old version of James. As I know, James
>> has
>>> used Spam as the default mailbox name for several years.
>>>
>>> There is no supported configuration setting to rename the default
>>> mailboxes, as far as I know. The default mailbox names are hardcoded in
>>> DefaultMailboxes.
>>>
>>> I recommend using the built-in Spam mailbox for new accounts. Although
>> its
>>> visible name is Spam, James exposes the appropriate special-use
>> semantics:
>>> IMAP \Junk and JMAP role junk. Clients should therefore rely on the
>>> special-use metadata or role rather than the literal mailbox name.
>> Existing
>>> Junk mailboxes can be kept as legacy folders. For migration, you could
>> move
>>> the existing messages from *Junk* to *Spam*.
>>>
>>> If you really insist on not creating the Spam mailbox for new accounts,
>>> provisionDefaultMailboxes=false can disable automatic provisioning, but
>> it
>>> does not provide a way to rename Spam to Junk.
>>>
>>> I hope it helps.
>>>
>>> Regards,
>>>
>>> Quan
>>>
>>> On Mon, Aug 10, 2026 at 9:28 AM Scoopta via server-user <
>>> [email protected]> wrote:
>>>
>>>> I noticed in more recent versions of james the default junk folder is
>>>> now spam, this isn't ideal since I have a lot of existing accounts that
>>>> use the junk folder name, I don't want new accounts to use a different
>>>> folder name, how can I adjust the default folder creation settings?
>>>>
>>>>
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