Create a separated mailbox for archived mails

[Sami Ketola]

Hi,

You can choose what ever storage driver you want. Sdbox was there just as an example that you can have separate storage driver from your mail_location storage driver.

Also this way ARCHIVE shows as normal folder structure under Thunderbird as long as your users subscribe to the folders. 
Which you can also force with subscribe = auto 

Sami

> On 20. Oct 2021, at 17.36, Claudio Corvino <ccorvino at trustitalia.it> wrote:
> 
> Hi Sami,
> 
> thanks for your answer!
> 
> Why should I use sdbox?
> 
> If I configure the archive location on a NFS mountpoint and I move mails older than 5 years to the "archive", how can I tell client like Thunderbird where to find archived e-mails?
> 
> Thanks!
> 
> On 20/10/21 15:37, Sami Ketola wrote:
>> Hi,
>> 
>> You should be able to configure something like this:
>> 
>> namespace archive {
>> 	disabled = no
>> 	hidden = no
>> 	list = yes
>> 	prefix = ARCHIVE/
>> 	location = sdbox:/archive/location/%u
>> }
>> 
>> Sami
>> 
>>> On 20. Oct 2021, at 16.16, Claudio Corvino <ccorvino at trustitalia.it <mailto:ccorvino at trustitalia.it>> wrote:
>>> 
>>> Hi Marc,
>>> 
>>> thanks for replying, I would like to archive e-mail older than 5 years on a second storage, it seems like the namespace with a new mail_location that you suggested could be good for me, but then I will need the auto-archiving script that move mails older than 5 years to the archive namespace.
>>> 
>>> A question: how can I configure client like Thunderbird to access that archive namespace so that users can still access their old mails?
>>> 
>>> Please could you give me some suggestion on how to do that?
>>> 
>>> Thanks for your time!
>>> 
>>> Regards
>>> 
>>> On 17/10/21 12:06, Marc wrote:
>>>> I am not really sure what you are trying to realize with this ldap modification. But afaik you have just one mail_location= configuration per user and that is it. If you want to archive email on 2nd storage you can either use this ALT= storage location or create a namespace, and configure this namespace with a new mail_location. The latter I have done indeed as archive, and after every first quarter I am running an auto-archiving script that moves emails from the usual inbox and send folders to the archive namespace.
>>>> 
>>>> 
>>>> 
>>>>> I have an MTA configured with Postfix that deliver email to an IMAP/LMTP
>>>>> Dovecot server version 2.3.4.1 configured to bind LDAP/AD for users.
>>>>> 
>>>>> I would like to configure Dovecot to create another mailbox to archive
>>>>> mails of users to a separated NFS mount.
>>>>> 
>>>>> Here is my dovecot-ldap.conf:
>>>>> 
>>>>> [...]
>>>>> 
>>>>> ldap_version=3
>>>>> auth_bind = yes
>>>>> dn = XXX
>>>>> dnpass = XXX
>>>>> scope = subtree
>>>>> user_attrs = sAMAccountName=home=/mnt/mail-storage-
>>>>> dev/%$,=uid=501,=gid=501
>>>>> pass_attrs = sAMAccountName=user
>>>>> user_filter = (&(objectclass=person)(samaccountname=%n))
>>>>> pass_filter= (&(objectclass=person)(samaccountname=%n))
>>>>> 
>>>>> 
>>>>> [...]
>>>>> 
>>>>> 
>>>>> I think I will add another conf file, let's say dovecot-ldap-
>>>>> archive.conf using "url" as LDAP/AD filed to distinguish from normal
>>>>> users:
>>>>> 
>>>>> [...]
>>>>> 
>>>>> ldap_version=3
>>>>> auth_bind = yes
>>>>> dn = XXX
>>>>> dnpass = XXX
>>>>> scope = subtree
>>>>> user_attrs = url=home=/mnt/mail-storage-archive/%$,=uid=501,=gid=501
>>>>> pass_attrs = url=user
>>>>> user_filter = (&(objectclass=person)(url=%n))
>>>>> pass_filter= (&(objectclass=person)(url=%n))
>>>>> 
>>>>> 
>>>>> [...]
>>>>> 
>>>>> I then added to "test" user a "url" filed into Active Directory named
>>>>> test-archive, but it's not working, when I bind Dovecot with:
>>>>> 
>>>>> doveadm user test-archive
>>>>> 
>>>>> I receive:
>>>>> 
>>>>> field    value
>>>>> userdb lookup: user test-archive doesn't exist
>>>>> 
>>>>> 
>>>>> With test user it works:
>>>>> 
>>>>> doveadm user test
>>>>> field    value
>>>>> uid    501
>>>>> gid    501
>>>>> home    /mnt/mail-storage-dev/test
>>>>> mail    maildir:~/Maildir:INDEX=/var/indexes/test
>>>>> 
>>>>> 
>>>>> What I'm doing wrong?
>>>>> 
>>>>> 
>>>>> Thanks in advance!
>>>>> 
>>>>> 
>>>>> --
>>>>> 
>>>>> 
>>>>> Claudio Corvino
>>>>> IT Systems Administrator
>> 

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