dovecot - Mar 2021 - Can master users retain private \Seen flags ?

> On 01/03/2021 10:55 tuuialou <tuuialou at protonmail.com> wrote:
> 
> 
> Hello,
> I am trying to setup a shared mailbox for a small team. Let's say Alice
and Bob both need to read and answer sales at example.com. I would like Alice
and Bob to retain private \Seen flags on sales at example.com. I know I can
achieve that with INDEXPVT on shared or public mailboxes but I am not 100% happy
with this solution because:
> - Thunderbird displays sales at example.com/Inbox and sales at
example.com/Sent as "subscribed folders" within alice at example.com
and bob at example.com. So Alice and Bob can't use the unified view of
Thunderbird.
> - I need create a special identity in Alice and Bob Thunderbird's
configuration so the sender is sales at example.com when Alice or Bob sends an
email from sales at example.com (and not alice at example.com or bob at
example.com). But I am not sure another email client is able to do that (on a
mobile phone for example).
> - I need to add ACL rights if a new folder is created under sales at
example.com.
> So I am now looking at the "master users" feature of Dovecot to
replicate this MS Exchange setup
https://www.en.its.aau.dk/instructions/Mail/shared-mailbox-thunderbird/ (alice
at example.com and bob at example.com log is as sales at example.com). I
achieved that but I don't know how to retain private \Seen flags so that Bob
doesn't see an email as read even if Alice has marked it as read before.
> Is it possible to retain private \Seen flags with master users? If yes, how
can I achieve that?
> Thank you for any help!
> PS: I posted the same question on https://forum.iredmail.org/post77816.html
and
https://forum.iredmail.org/topic13549-proposal-for-a-exchange-like-shared-mailbox-aka-login-as.html
but I couldn't get help and was advised to ask here.
>
Better idea would be to share the folder to Bob & Alice so that they have
private indexes. This way they both have their own set of Seen flags.

https://wiki.dovecot.org/SharedMailboxes/Shared

Aki

Hello and thank you for your answer.

I know https://wiki.dovecot.org/SharedMailboxes/Shared and I successfully
implemented it but I am not 100% happy for the 3x reasons described in my
original message.

I understand the "exchange-like" solution described at
https://forum.iredmail.org/topic13549-proposal-for-a-exchange-like-shared-mailbox-aka-login-as.html
leverages the master user feature of Dovecot to reach my goal (retain private
\Seen flag without using the Shared mailbox feature). Or am I missing
something??

Basically, my question is:

Is it possible to retain private \Seen flags between sales at example.com*alice
at example.com and sales at example.com*bob at example.com?

Thanks again for your help!


??????? Original Message ???????
On Monday, March 1, 2021 10:46 AM, Aki Tuomi <aki.tuomi at
open-xchange.com> wrote:
> > On 01/03/2021 10:55 tuuialou tuuialou at protonmail.com wrote:
> > Hello,
> > I am trying to setup a shared mailbox for a small team. Let's say
Alice and Bob both need to read and answer sales at example.com. I would like
Alice and Bob to retain private \Seen flags on sales at example.com. I know I
can achieve that with INDEXPVT on shared or public mailboxes but I am not 100%
happy with this solution because:
> >
> > -   Thunderbird displays sales at example.com/Inbox and sales at
example.com/Sent as "subscribed folders" within alice at example.com
and bob at example.com. So Alice and Bob can't use the unified view of
Thunderbird.
> > -   I need create a special identity in Alice and Bob
Thunderbird's configuration so the sender is sales at example.com when Alice
or Bob sends an email from sales at example.com (and not alice at example.com or
bob at example.com). But I am not sure another email client is able to do that
(on a mobile phone for example).
> > -   I need to add ACL rights if a new folder is created under sales at
example.com.
> >     So I am now looking at the "master users" feature of
Dovecot to replicate this MS Exchange setup
https://www.en.its.aau.dk/instructions/Mail/shared-mailbox-thunderbird/ (alice
at example.com and bob at example.com log is as sales at example.com). I
achieved that but I don't know how to retain private \Seen flags so that Bob
doesn't see an email as read even if Alice has marked it as read before.
> >     Is it possible to retain private \Seen flags with master users? If
yes, how can I achieve that?
> >     Thank you for any help!
> >     PS: I posted the same question on
https://forum.iredmail.org/post77816.html and
https://forum.iredmail.org/topic13549-proposal-for-a-exchange-like-shared-mailbox-aka-login-as.html
but I couldn't get help and was advised to ask here.
> >
>
> Better idea would be to share the folder to Bob & Alice so that they
have private indexes. This way they both have their own set of Seen flags.
>
> https://wiki.dovecot.org/SharedMailboxes/Shared
>
> Aki