dovecot - Apr 2019 - lmtp_save_to_detail_mailbox override

Hi,

I have a dovecot 2.3.2.1 instance running here that is getting userdb and 
passdb data from a SQL database. This was a cyrus server migrated over and 
all users are happy.

All users except one: Said user asked if it would be possible to disable 
subaddressing (localuser+folder at example.com) again.

The setting controlling that is AFAIK the lmtp_save_to_detail_mailbox 
item.

My idea was to override that setting for the specific user. I changed the 
user_query to return no for the user in question and all seems well:

# doveadm user test
field	value
user	test at example.com
uid	vmail
gid	vmail
home	/var/lib/imap/example.com/test
mail	mdbox:/var/spool/imap/user/example.com/test
lmtp_save_to_detail_mailbox	no
#

Looks good, doesn't work though. Mail is still delivered to the +folder. 
Is this per user setting not taken into account?

I could probably provide the user in question with a sieve script that 
files everything into the INBOX again but I wonder if there's a better 
way?

cheers,
  Andreas

On 12 Apr 2019, at 09:06, Andreas Thienemann via dovecot <dovecot at
dovecot.org> wrote:
> 
> All users except one: Said user asked if it would be possible to disable
subaddressing (localuser+folder at example.com) again.
> 
> The setting controlling that is AFAIK the lmtp_save_to_detail_mailbox item.
I thought it was sieve that did this? specifically managesieve_sieve_capability



-- 
Some books are undeservedly forgotten; none are undeservedly remembered

On Fri, 12 Apr 2019, @lbutlr wrote:
>> All users except one: Said user asked if it would be possible to 
>> disable subaddressing (localuser+folder at example.com) again.
>>
>> The setting controlling that is AFAIK the lmtp_save_to_detail_mailbox 
>> item.
> I thought it was sieve that did this? specifically 
> managesieve_sieve_capability
You can curtail sieve/pigeonhole's ability to do fileinto calls using that 
paramter.

But lmtp_save_to_detail_mailbox is unrelated to pigeonhole and will also 
work without any sieve scripts active/installed.

If I disable the setting systemwide, the filing into +subaddress folders 
stops. So I am pretty sure I got the right setting. Either I am not doing 
the override correctly or the code is not actually taking the setting from 
userdb.

cheers,
  Andreas

On 12/04/2019 17:06, Andreas Thienemann via dovecot
wrote:
> Hi,
>
> I have a dovecot 2.3.2.1 instance running here that is getting userdb 
> and passdb data from a SQL database. This was a cyrus server migrated 
> over and all users are happy.
>
> All users except one: Said user asked if it would be possible to 
> disable subaddressing (localuser+folder at example.com) again.
>
> The setting controlling that is AFAIK the lmtp_save_to_detail_mailbox 
> item.
>
> My idea was to override that setting for the specific user. I changed 
> the user_query to return no for the user in question and all seems well:
>
> # doveadm user test
> field??? value
> user??? test at example.com
> uid??? vmail
> gid??? vmail
> home??? /var/lib/imap/example.com/test
> mail??? mdbox:/var/spool/imap/user/example.com/test
> lmtp_save_to_detail_mailbox??? no
> #
>
> Looks good, doesn't work though. Mail is still delivered to the 
> +folder. Is this per user setting not taken into account?
No, unfortunately that setting is global and read at client connection 
before the user is looked up for the RCPT command.

Regards,

Stephan.